Search results

Prevasio Datasheet Datasheet Download PDF Schedule time with one of our experts Schedule time with one of our experts Work email* First name* Last name* Company* country* Select country... Short answer* By submitting this form, I accept AlgoSec's privacy policy Continue

Update : Next two parts of the analysis are available here and here . As earlier reported by FireEye, the actors behind a global... Cloud Security Sunburst Backdoor: A Deeper Look Into The SolarWinds’ Supply Chain Malware Rony Moshkovich 2 min read Rony Moshkovich Short bio about author here Lorem ipsum dolor sit amet consectetur. Vitae donec tincidunt elementum quam laoreet duis sit enim. Duis mattis velit sit leo diam. Tags Share this article 12/15/20 Published Update : Next two parts of the analysis are available here and here . As earlier reported by FireEye, the actors behind a global intrusion campaign have managed to trojanise SolarWinds Orion business software updates in order to distribute malware. The original FireEye write-up already provides a detailed description of this malware. Nevertheless, as the malicious update SolarWinds-Core-v2019.4.5220-Hotfix5.msp was still available for download for hours since the FireEye’s post, it makes sense to have another look into the details of its operation. The purpose of this write-up is to provide new information, not covered in the original write-up. Any overlaps with the original description provided by FireEye are not intentional. For start, the malicious component SolarWinds.Orion.Core.BusinessLayer.dll inside the MSP package is a non-obfuscated .NET assembly. It can easily be reconstructed with a .NET disassembler, such as ILSpy , and then fully reproduced in C# code, using Microsoft Visual Studio. Once reproduced, it can be debugged to better understand how it works. In a nutshell, the malicious DLL is a backdoor. It is loaded into the address space of the legitimate SolarWinds Orion process SolarWinds.BusinessLayerHost.exe or SolarWinds.BusinessLayerHostx64.exe . The critical strings inside the backdoor’s class SolarWinds.Orion.Core.BusinessLayer.OrionImprovementBusinessLayer are encoded with the DeflateStream Class of the .NET’s System.IO.Compression library, coupled with the standard base64 encoder. Initialisation Once loaded, the malware checks if its assembly file was created earlier than 12, 13, or 14 days ago. The exact number of hours it checks is a random number from 288 to 336. Next, it reads the application settings value ReportWatcherRetry . This value keeps the reporting status, and may be set to one of the states: New (4) Truncate (3) Append (5) When the malware runs the first time, its reporting status variable ReportWatcherRetry is set to New (4) . The reporting status is an internal state that drives the logic. For example, if the reporting status is set to Truncate , the malware will stop operating by first disabling its networking communications, and then disabling other security tools and antivirus products. In order to stay silent, the malware periodically falls asleep for a random period of time that varies between 30 minutes and 2 hours. At the start, the malware obtains the computer’s domain name . If the domain name is empty, the malware quits. It then generates a 8-byte User ID, which is derived from the system footprint. In particular, it is generated from MD5 hash of a string that consists from the 3 fields: the first or default operational (can transmit data packets) network interface’s physical address computer’s domain name UUID created by Windows during installation (machine’s unique ID) Even though it looks random, the User ID stays permanent as long as networking configuration and the Windows installation stay the same. Domain Generation Algorithm The malware relies on its own CryptoHelper class to generate a domain name. This class is instantiated from the 8-byte User ID and the computer’s domain name, encoded with a substitution table: “rq3gsalt6u1iyfzop572d49bnx8cvmkewhj” . For example, if the original domain name is “ domain “, its encoded form will look like: “ n2huov “. To generate a new domain, the malware first attempts to resolve domain name “ api.solarwinds.com “. If it fails to resolve it, it quits. The first part of the newly generated domain name is a random string, produced from the 8-byte User ID, a random seed value, and encoded with a custom base64 alphabet “ph2eifo3n5utg1j8d94qrvbmk0sal76c” . Because it is generated from a random seed value, the first part of the newly generated domain name is random. For example, it may look like “ fivu4vjamve5vfrt ” or “ k1sdhtslulgqoagy “. To produce the domain name, this string is then appended with the earlier encoded domain name (such as “ n2huov “) and a random string, selected from the following list: .appsync-api.eu-west-1[.]avsvmcloud[.]com .appsync-api.us-west-2[.]avsvmcloud[.]com .appsync-api.us-east-1[.]avsvmcloud[.]com .appsync-api.us-east-2[.]avsvmcloud[.]com For example, the final domain name may look like: fivu4vjamve5vfrtn2huov[.]appsync-api.us-west-2[.]avsvmcloud[.]com or k1sdhtslulgqoagyn2huov[.]appsync-api.us-east-1[.]avsvmcloud[.]com Next, the domain name is resolved to an IP address, or to a list of IP addresses. For example, it may resolve to 20.140.0.1 . The resolved domain name will be returned into IPAddress structure that will contain an AddressFamily field – a special field that specifies the addressing scheme. If the host name returned in the IPAddress structure is different to the queried domain name, the returned host name will be used as a C2 host name for the backdoor. Otherwise, the malware will check if the resolved IP address matches one of the patterns below, in order to return an ‘address family’: IP Address Subnet Mask ‘Address Family’ 10.0.0.0 255.0.0.0 Atm 172.16.0.0 255.240.0.0 Atm 192.168.0.0 255.255.0.0 Atm 224.0.0.0 240.0.0.0 Atm fc00:: fe00:: Atm fec0:: ffc0:: Atm ff00:: ff00:: Atm 41.84.159.0 255.255.255.0 Ipx 74.114.24.0 255.255.248.0 Ipx 154.118.140.0 255.255.255.0 Ipx 217.163.7.0 255.255.255.0 Ipx 20.140.0.0 255.254.0.0 ImpLink 96.31.172.0 255.255.255.0 ImpLink 131.228.12.0 255.255.252.0 ImpLink 144.86.226.0 255.255.255.0 ImpLink 8.18.144.0 255.255.254.0 NetBios 18.130.0.0 255.255.0.0 NetBios 71.152.53.0 255.255.255.0 NetBios 99.79.0.0 255.255.0.0 NetBios 87.238.80.0 255.255.248.0 NetBios 199.201.117.0 255.255.255.0 NetBios 184.72.0.0 255.254.0.0 NetBios For example, if the queried domain resolves to 20.140.0.1 , it will match the entry in the table 20.140.0.0 , for which the returned ‘address family’ will be ImpLink . The returned ‘address family’ invokes an additional logic in the malware. Disabling Security Tools and Antivirus Products If the returned ‘address family’ is ImpLink or Atm , the malware will enumerate all processes and for each process, it will check if its name matches one of the pre-defined hashes. Next, it repeats this processed for services and for the drivers installed in the system. If a process name or a full path of an installed driver matches one of the pre-defined hashes, the malware will disable it. For hashing, the malware relies on Fowler–Noll–Vo algorithm. For example, the core process of Windows Defender is MsMpEng.exe . The hash value of “ MsMpEng ” string is 5183687599225757871 . This value is specifically enlisted the malware’s source under a variable name timeStamps : timeStamps = new ulong[1] { 5183687599225757871uL } The service name of Windows Defender is windefend – the hash of this string ( 917638920165491138 ) is also present in the malware body. As a result, the malicioius DLL will attempt to stop the Windows Defender service. In order to disable various security tools and antivirus products, the malware first grants itself SeRestorePrivilege and SeTakeOwnershipPrivilege privileges, using the native AdjustTokenPrivileges() API. With these privileges enabled, the malware takes ownership of the service registry keys it intends to manipulate. The new owner of the keys is first attempted to be explicitly set to Administrator account. If such account is not present, the malware enumerates all user accounts, looking for a SID that represents the administrator account. The malware uses Windows Management Instrumentation query “ Select * From Win32_UserAccount ” to obtain the list of all users. For each enumerated user, it makes sure the account is local and then, when it obtains its SID, it makes sure the SID begins with S-1-5- and ends with -500 in order to locate the local administrator account. Once such account is found, it is used as a new owner for the registry keys, responsible for manipulation of the services of various security tools and antivirus products. With the new ownership set, the malware then disables these services by setting their Start value to 4 (Disabled): registryKey2.SetValue(“Start”), 4, RegistryValueKind.DWord); HTTP Backdoor If the returned ‘address family’ for the resolved domain name is NetBios , as specified in the lookup table above, the malware will initialise its HttpHelper class, which implements an HTTP backdoor. The backdoor commands are covered in the FireEye write-up, so let’s check only a couple of commands to see what output they produce. One of the backdoor commands is CollectSystemDescription . As its name suggests, it collects system information. By running the code reconstructed from the malware, here is an actual example of the data collected by the backdoor and delivered to the attacker’s C2 with a separate backdoor command UploadSystemDescription : 1. %DOMAIN_NAME% 2. S-1-5-21-298510922-2159258926-905146427 3. DESKTOP-VL39FPO 4. UserName 5. [E] Microsoft Windows NT 6.2.9200.0 6.2.9200.0 64 6. C:\WINDOWS\system32 7. 0 8. %PROXY_SERVER% Description: Killer Wireless-n/a/ac 1535 Wireless Network Adapter #2 MACAddress: 9C:B6:D0:F6:FF:5D DHCPEnabled: True DHCPServer: 192.168.20.1 DNSHostName: DESKTOP-VL39FPO DNSDomainSuffixSearchOrder: Home DNSServerSearchOrder: 8.8.8.8, 192.168.20.1 IPAddress: 192.168.20.30, fe80::8412:d7a8:57b9:5886 IPSubnet: 255.255.255.0, 64 DefaultIPGateway: 192.168.20.1, fe80::1af1:45ff:feec:a8eb NOTE: Field #7 specifies the number of days (0) since the last system reboot. GetProcessByDescription command will build a list of processes running on a system. This command accepts an optional argument, which is one of the custom process properties enlisted here . If the optional argument is not specified, the backdoor builds a process list that looks like: [ 1720] svchost [ 8184] chrome [ 4732] svchost If the optional argument is specified, the backdoor builds a process list that includes the specified process property in addition to parent process ID, username and domain for the process owner. For example, if the optional argument is specified as “ ExecutablePath “, the GetProcessByDescription command may return a list similar to: [ 3656] sihost.exe C:\WINDOWS\system32\sihost.exe 1720 DESKTOP-VL39FPO\UserName [ 3824] svchost.exe C:\WINDOWS\system32\svchost.exe 992 DESKTOP-VL39FPO\UserName [ 9428] chrome.exe C:\Program Files (x86)\Google\Chrome\Application\chrome.exe 4600 DESKTOP-VL39FPO\UserName Other backdoor commands enable deployment of the 2nd stage malware. For example, the WriteFile command will save the file: using (FileStream fileStream = new FileStream(path, FileMode.Append, FileAccess.Write)) { fileStream.Write(array, 0, array.Length); } The downloaded 2nd stage malware can then the executed with RunTask command: using (Process process = new Process()) { process.StartInfo = new ProcessStartInfo(fileName, arguments) { CreateNoWindow = false, UseShellExecute = false }; if (process.Start()) … Alternatively, it can be configured to be executed with the system restart, using registry manipulation commands, such as SetRegistryValue . Schedule a demo Related Articles 2025 in review: What innovations and milestones defined AlgoSec’s transformative year in 2025? AlgoSec Reviews Mar 19, 2023 · 2 min read Navigating Compliance in the Cloud AlgoSec Cloud Mar 19, 2023 · 2 min read 5 Multi-Cloud Environments Cloud Security Mar 19, 2023 · 2 min read Speak to one of our experts Speak to one of our experts Work email* First name* Last name* Company* country* Select country... Short answer* By submitting this form, I accept AlgoSec's privacy policy Schedule a call

State of cloud security: Concerns, challenges, and incidents Download PDF Schedule time with one of our experts Schedule time with one of our experts Work email* First name* Last name* Company* country* Select country... Short answer* By submitting this form, I accept AlgoSec's privacy policy Continue

Explore Algosec's customer success stories to see how organizations worldwide improve security, compliance, and efficiency with our solutions. SecureLink Enables Business Agility with Hybrid Cloud Management Organization SecureLink Industry Security Service Provider Headquarters Malmo, Sweden Download case study Share Customer
success stories "To be able to apply the same policy on all your infrastructure is priceless" SecureLink is Europe’s premier, award-winning, cybersecurity company. Active since 2003, they operate from 15 offices in 8 countries, to build a safe, connected world. More than 2,000 experts and thought leaders are dedicated to delivering unrivalled information security value for over 1,300 customers. They are part of the Orange Group, one of the world’s leading telecommunications operators, and listed on Euronext Paris and the New York Stock Exchange (NYSE). The Challenge SecureLink has been an on-site consultant for several years for a large global entertainment company. SecureLink’s client has over 100 firewalls running both on-premises and on AmazonWeb Services (AWS) from several different vendors. Some of the challenges included: “Shadow IT” had taken over, causing security risks and friction with IT, who had to support it. Security policies were being managed in tedious and unmaintainable Excel spreadsheets Lack of verification if official firewall policies accurately reflected traffic flows The business units were pushing a migration to a hybrid cloud environment rather than relying exclusively on an on-premises deployment. Business units were unilaterally moving business applications to the cloud, leading to “shadow IT.” Business application owners were unable to comply with security policies, troubleshoot their “shadow network,” nor connect cloud-based servers to local servers. When there were problems, the business units went back to the IT department, who had to fix a mess they didn’t create. The Solution SecureLink was searching for a solution that provided: Automation of security policy change management and documentation of security policy changes Comprehensive firewall support for their multi-vendor, hybrid estate Ability to determine compliance and risk profiles Full visibility and control for IT, while enabling business agility In order to keep the business happy and agile, but ensure that IT had full visibility and control, they implemented AlgoSec. The client selected AlgoSec’s Security Policy Management Solution, which includes AlgoSec Firewall Analyzer and AlgoSec FireFlow. AlgoSec Firewall Analyzer delivers visibility and analysis of complex network security policies across on-premise, cloud, and hybrid networks. It automates and simplifies security operations including troubleshooting, auditing, and risk analysis. Using Firewall Analyzer, SecureLink can optimize the configuration of firewalls, and network infrastructure to ensure security and compliance. AlgoSec FireFlow enables security staff to automate the entire security policy change process from design and submission to proactive risk analysis, implementation, validation, and auditing. Its intelligent, automated workflows save time and improve security by eliminating manual errors and reducing risk. The Results AlgoSec helped SecureLink gain control of shadow IT without slowing down the business. By using AlgoSec to gain full visibility of the entire network, IT was able to regain control over company’s security policy while supporting the move to the cloud. “AlgoSec lets us take ownership and be quick for the business,” said Björn Löfman, a consultant at SecureLink. “The way AlgoSec provides the whole map of the internal and cloud networks is outstanding, and to be able to apply the same policy on all your infrastructure is priceless.” By using the AlgoSec Security Management Solution, SecureLink was able to clean up risky firewall policies, gain increased understanding of their security policies, tighten compliance, and enhance migrations of hardware and implement a hybrid cloud environment with Amazon Web Services (AWS). Some benefits to the client of AlgoSec include: Greater understanding of network security policies Easier firewall migration – they migrated from Juniper NetScreen to Check Point firewalls Ability to optimize rules and reduce unneeded and duplicate rules and objects. They were able to go from 4,000 rules to 1,110 rules – a 72% reduction. Move to the hybrid cloud with the adoption of Amazon Web Services Able to reduce shadow IT and reclaim ownership of the cloud Full visibility of entire hybrid network – including both on-premise and devices in the cloud including firewalls, AWS security groups , and Access Control Lists (ACLs). Schedule time with one of our experts

Learn how to effectively prevent and block ransomware attacks using your firewall. Discover essential configurations and best practices for enhanced security. Prevent & block ransomware attacks on firewall What is a ransomware attack? Ransomware is a malware attack that locks a victim’s data and demands a ransom, usually in Bitcoin, for its release. It often spreads through disguised executable files or malicious emails but can also exploit software vulnerabilities. A notable instance is the WannaCry attack, which spread without user interaction. Given the increasing sophistication of these attacks, understanding and combating ransomware is crucial for tightened cybersecurity. Schedule a Demo What are the main types of malware and ransomware threats? Understanding the variants of malware and ransomware infections in cybersecurity is critical to effective prevention and response. These threats can range from viruses to sophisticated Ransomware-as-a-Service models. Let’s delve into the main types: Viruses – Malicious software that can spread to other files and operating systems. Worms – Self-replicating malware spreading independently through networks, causing significant damage. Trojans – Disguised as legitimate software or files, Trojans can steal data or exploit permissions to gain unauthorized system access. Adware – This malware displays unwanted ads or pop-ups on a system, often for the attacker’s revenue generation. Fake pop-ups – Messages claiming your system has a virus and demanding payment for its removal, such as FakeAV and System Progressive Protection. Rootkits – Designed to hide their presence, rootkits enable remote access for malware, making it difficult for antivirus software to detect and remove the threats. Botnets – Attackers use these networks of compromised computers, known as botnets, to carry out remote DDoS and other cyber attacks. Spyware – This malware secretly monitors user activity and collects sensitive data. Fileless malware – Operating entirely in a system’s memory, this malware type is hard to detect and remove. Phishing emails – Disguised emails that trick recipients into clicking a malicious link or opening email attachments that appear authentic. Malvertising – Hackers inject malicious code into legitimate online advertising networks, redirecting users to malicious websites. Drive-by attacks – Users visit unsafe, fake web pages, including sites infected unknowingly or fake sites posing as legitimate ones. Self-propagation – Physically infects a system through a network or USB drive. Encryption ransomware – Encrypts your files and demands payment in return for the decryption key. Examples include CryptoLocker and WannaCry. Locker ransomware – A cyber threat restricting access to your system, demanding payment for restoring access. Winlocker and Police-themed ransomware are examples. Mobile ransomware – Targeting mobile devices, this ransomware locks the device or encrypts the files, demanding payment for their release. Android Defender and Simplelocker are examples. RaaS (Ransomware-as-a-Service) – Distributed as a service, this ransomware model allows anyone to buy or rent ransomware kits or apps for infecting others. Recognizing these threats is the first step toward ransomware prevention . Schedule a Demo Are firewalls able to provide ransomware protection? Yes, firewalls offer a layer of protection against ransomware. They act as a barrier between computers and networks, scanning incoming and outgoing traffic based on defined security parameters to block malicious packets. Firewalls can help thwart ransomware attacks by blocking suspect IP addresses, prohibiting remote access without authorization, and controlling the flow of certain data types that could carry ransomware. Schedule a Demo Which firewall rules can block ransomware? Several firewall rules can help block ransomware: Block known malicious IP addresses – You can configure firewalls to block traffic from IP addresses known to often distribute ransomware. Block all inbound traffic on port 445 – Used for file and printer sharing, port 445 is a common target for ransomware attacks. Restrict outbound traffic – Limiting outbound traffic to necessary ports can prevent a ransomware attack from communicating with its command and control server, thus halting the attack. Implement Geo-IP filtering – Some organizations may find it beneficial to block or limit traffic from specific countries or regions, particularly if they are known sources of ransomware. Disable Remote Desktop Protocol (RDP) – Many ransomware attacks exploit RDP to gain remote access to systems. Disabling RDP at the firewall can help prevent these advanced threats. Implement Intrusion Detection and Prevention Systems (IDS/IPS) – These systems can detect unusual traffic patterns or system activities that suggest a ransomware attack, allowing the firewall to respond and block the attack. Application control – Firewalls with application control features can prevent the execution of unrecognized or unauthorized applications, which can stop the delivery or execution of ransomware. Schedule a Demo What are the best practices for ransomware prevention? Clean up and tighten firewall rules Over time, firewall rules can get messy. This mess might let attackers in, just like weak VPNs or vulnerable email security can. Regularly cleaning up firewall and endpoint protection rules can help stop a ransomware attack . When you change a rule, make sure you know why. Misconfigured changes could disrupt apps or expose VPN tunnels. Analyze the risks and vulnerabilities in your network Every network security solution has some risks. These risks come from different providers. It is essential to find these risks and rank them based on how much they can harm your business. Since threats can pop up anytime, endpoint security with anti-malware features is essential. Focus on risks that could hurt critical business apps. Tying vulnerabilities to related firewall rules can make this easier, just like real-time updates in endpoint security can help stay ahead of new threats. Mitigate lateral movement and control east-west traffic with network segmentation Using network segmentation allows you to minimize the impact on your network in case of an attack. This is particularly effective against swift threats such as zero-day attacks, which target a software vulnerability that is unknown to the software vendor or to antivirus vendors. By securing crucial company data in protected segments with strong encryption keys and employing sandboxing, you are well-equipped to manage east-west traffic. East-west traffic refers to the communication or data transfer that happens inside the network, from server to server, or between internal applications. By managing this traffic, you can prevent attackers from moving laterally across your network. Adding multi-factor authentication can make this strategy even more robust. It adds another layer of security to keep attackers under control. For enhanced protection against cyber threats, consider implementing micro-segmentation . This advanced method can provide granular security controls and can further deter lateral movement across your network. Identify where your hybrid network is exposed to public networks In complex network setups with multi-cloud and hybrid systems, it is very important to see everything that is happening. You need to know how your business apps connect, including any vectors that unwanted or harmful traffic, such as bots, could use. To understand where your hybrid network is exposed to public networks, you need a complete map of your network and the ability to simulate traffic. This information can help you find and fix points where your network is exposed. Respond to incidents coming from SIEM/SOAR solutions with rapid isolation SIEM/SOAR systems collect and examine logs from your IT setup, security tools, and business apps. This helps the SOC team find and flag strange activities for further investigation. But with so much data, many alerts are false positives. Still, this does not mean you are lost in a sea of noise. By linking security incidents to network traffic patterns, you can tell if a compromised server is exposed to the internet. This can help you quickly separate an infected server if a Trojan gets past your defenses, which is a crucial strategy in stopping ransomware attacks. Schedule a Demo What steps must you take when a ransomware attack is detected? Step 1: Identify the attack – Act quickly if you think you are under a ransomware attack. Signs of an attack can include files you cannot open, weird computer activity, or a ransom message on your screen. If you see these, confirm it is ransomware and take steps to limit the damage. Step 2: Isolate affected systems – When you know you are under attack, isolate the affected computers from the rest of your network. This can stop the ransomware from spreading. You might need to disconnect from the internet, turn off Wi-Fi, or even shut down the system. Step 3: Secure backup data – Backups can help you recover from ransomware. If you have not already saved backups in a different place or offline, do it immediately to protect data from damage. Step 4: Report the incident – Tell your IT department or security team about the attack. If you do not have an IT team, you might need help from a cybersecurity company. Also, tell the law enforcement agencies and any organizations you are a part of that might need to know. Step 5: Preserve evidence – Keep any evidence related to the ransomware attack. This might include ransom messages, emails, or system logs. This evidence can help the police and cybersecurity experts understand what happened and might help get your data back. Step 6: Remove the ransomware – IT or cybersecurity experts should be the ones to get rid of the ransomware. They have special tools and methods to remove ransomware. Experts will ensure that it does not cause more harm to your files or computers. Step 7: Restore your systems – After the ransomware is gone, you can start fixing your systems. If you had backups that were not affected by the attack, you might be able to restore your systems to their previous state. If not, you might need a professional service to recover your data. Step 8: Post-incident review – Review what happened and how you responded. Find any weak spots in your security that the attack exploited and make a plan to improve your safety. This step can help stop future attacks and strengthen your business’s cybersecurity. Schedule a Demo How does AlgoSec prevent and mitigate ransomware attacks? Manage security policies AlgoSec’s tools help you deal with network security policies. They enable you to fight against ransomware attacks. AlgoSec makes sure your firewall does not have too many rules or unnecessary ones. Removing old or superfluous rules and eliminating duplicates will improve your anti-ransomware policies. Don’t forget to check out AlgoSec’s anti-ransomware resources . Visualize your network AlgoSec lets you see your entire network. It shows you all your business applications and how and where they connect. You can use this network map to find places that might be exposed to public networks and fix any weak spots. Optimize security policies AlgoSec gives you tools to improve your security policies. They help you clean up your firewall rules and remove old, duplicate, and too-permissive rules. AlgoSec’s intelligent change management automation and useful reports help you keep your policies clean. By ensuring new rules are designed and implemented optimally, potential ransomware attacks can be blocked. Assess & mitigate risks AlgoSec helps you find and deal with risks in your firewall policies. It checks your security policies against a list of best practices and known threats. By checking the risk of each new change before it is made, AlgoSec makes sure you do not accidentally add unknown risks to your network. This helps you protect your network from ransomware attacks. Tie security incidents to business processes AlgoSec’s platform smoothly integrates with all the leading SIEM and SOAR solutions. This lets you connect security problems directly to your business processes. If there’s a breach, AlgoSec quickly stops the attack by cutting off any servers at risk. This helps you limit the damage from a ransomware attack. Enforce network segmentation AlgoSec helps enforce network segmentation in your hybrid network. It automatically finds applications and their connections. This creates a real-time map for designing your network divisions. AlgoSec allows you to define which traffic is allowed, making sure your security rules fit your division strategy. It also automates security changes. The platform supports software-defined micro-segmentation control over network traffic, compatible with Cisco ACI and VMWare NSX. Schedule a Demo Select a size What is a ransomware attack? What are the main types of malware and ransomware threats? Are firewalls able to provide ransomware protection? Which firewall rules can block ransomware? What are the best practices for ransomware prevention? What steps must you take when a ransomware attack is detected? How does AlgoSec prevent and mitigate ransomware attacks? Get the latest insights from the experts Use these six best practices to simplify compliance and risk White paper Learn how AlgoSec can help you pass PCI-DSS Audits and ensure Solution overview See how this customer improved compliance readiness and risk Case study Choose a better way to manage your network

Learn how to unify, consolidate, and automate your entire network security policy management across your Cisco and multi vendor estate Webinars Cisco & AlgoSec Achieving application-driven security across your hybrid network Your network extends into hybrid environments and may include private clouds running Cisco ACI, and on-premises devices. Managing network security policies in your multi-vendor estate is complex. Because your network is made up of multiple vendors and each part of your network estate is managed in its own silo, it is tough to get centralized management of your entire network. Making changes is a chore and validating security is difficult. Learn how to unify, consolidate, and automate your entire network security policy management across your Cisco and multi-vendor estate. In this session Roxana Diaz, Worldwide Technical Solutions Architect at Cisco, and Yonatan Klein, AlgoSec’s Director of Product, will discuss how to manage the Cisco and multi-cloud estate and how to: Capitalize on your Cisco ACI investment to take advantage of its full capabilities Bring centralized visibility, automation, and compliance monitoring into your Cisco and multi-vendor network ecosystem Get full visibility of your entire hybrid network estate, including items within the Cisco ACI security environment, as well as outside it, including Cisco firewalls and routers, as well as multi-vendor devices. Take advantage of Cisco Tetration Analytics and AlgoSec’s intelligent discovery to get a full picture of your network and application traffic and to design and provision a micro-segmentation network policy design. Unify, consolidate, and automate your network security policy management Proactively assess risk throughout your entire network, including Cisco ACI contracts, and recommend the necessary changes to eliminate misconfigurations and compliance violations June 10, 2020 Yonatan Klein irector of Product Management Roxana Diaz Worldwide Technical Solutions Architect at Cisco Relevant resources AlgoSec Joins Cisco’s Global Price List Keep Reading Migrating and Managing Security Policies in a Segmented Data Center Keep Reading AlgoSec Cisco ACI App Center Demo Watch Video Choose a better way to manage your network Choose a better way to manage your network Work email* First name* Last name* Company* country* Select country... Short answer* By submitting this form, I accept AlgoSec's privacy policy Continue

Learn best practices to secure your cloud environment and deliver applications securely Webinars State of Ransomware: Caught between perception and reality Ransomware continues to be a major problem—and the problem is only getting worse. An exclusive ExtraHop 2022 survey conducted with over 500 security and IT decision makers provided some sobering responses: 85% of those surveyed reported suffering at least one ransomware attack while an alarming 74% have experienced multiple attacks. Yet most IT decision makers (77%) are confident in their ability to prevent or mitigate all cybersecurity threats, including ransomware. In this webinar, we take an in-depth look into the implications of this alarming trend and provide a turnkey strategy that organizations can implement today to safeguard their most critical data stored in their business applications and increase their level of ransomware preparedness. Join us for: * In-depth analysis of infamous ransomware attacks * Ways to identify and remediate vulnerabilities at the application level * A practical application centric approach that can support your pre-existing security measures * Mitigation measures to consider at the onset of your next ransomware attack * Ransomware future trends predictions January 24, 2023 Eric Jeffery Regional Sales Engineer Relevant resources Reducing risk of ransomware attacks - back to basics Keep Reading Fighting Ransomware - CTO Roundtable Insights Keep Reading Ransomware Attack: Best practices to help organizations proactively prevent, contain and Keep Reading Choose a better way to manage your network Choose a better way to manage your network Work email* First name* Last name* Company* country* Select country... Short answer* By submitting this form, I accept AlgoSec's privacy policy Continue

Ransomware attacks have become more sophisticated, as attackers change tactics from spray and pray to more targeted server based attacks So how do you protect your network from such attacks Webinars Reducing Risk of Ransomware Attacks - Back to Basics Did you know that 50% of organizations were hit by ransomware attacks in 2020? These attacks have become more sophisticated, as attackers change tactics from “spray and pray” to more targeted server-based attacks. So how do you protect your network from such attacks? We invite you to join our series of webinars about ransomware with AlgoSec and Cisco, to learn practical methods to reduce your network attack surface and protect your organization from ransomware and other cyber-attacks. In our first webinar in the series, Yitzy Tannenbaum, Product Marketing Manager from AlgoSec and Jan Heijdra, Cisco Security Specialist , will take you back to the basics. They will discuss: Popular methods used to infect your network with ransomware The importance of a layered defense-in-depth strategy Best practices for managing your security devices How to build a security wall with Cisco Secure and AlgoSec Network Security Policy Management to block ransomware January 13, 2021 Jan Heijdra Cisco Security Specialist Yitzy Tannenbaum Product Marketing Manager Relevant resources Reducing your risk of ransomware attacks Keep Reading Ransomware Attack: Best practices to help organizations proactively prevent, contain and Keep Reading Choose a better way to manage your network Choose a better way to manage your network Work email* First name* Last name* Company* country* Select country... Short answer* By submitting this form, I accept AlgoSec's privacy policy Continue

Security Policy Management with Professor Wool Advanced Cyber Threat and Incident Management Advanced Cyber Threat and Incident Management is a whiteboard-style series of lessons that examine some of the challenges and provide technical tips for helping organizations detect and quickly respond to cyber-attacks while minimizing the impact on the business. Lesson 1 SIEM solutions collect and analyze logs generated by the technology infrastructure, security systems and business applications. The Security Operations Center (SOC) team uses this information to identify and flag suspicious activity for further investigation. In this lesson, Professor Wool explains why it’s important to connect the information collected by the SIEM with other databases that provide information on application connectivity, in order to make informed decisions on the level of risk to the business, and the steps the SOC needs to take to neutralize the attack. How to bring business context into incident response Watch Lesson 2 In this lesson Professor Wool discusses the need for reachability analysis in order to assess the severity of the threat and potential impact of an incident. Professor Wool explains how to use traffic simulations to map connectivity paths to/from compromised servers and to/from the internet. By mapping the potential lateral movement paths of an attacker across the network, the SOC team can, for example, proactively take action to prevent data exfiltration or block incoming communications with Command and Control servers. Bringing reachability analysis into incident response Watch Have a Question for Professor Wool? Ask him now Choose a better way to manage your network Choose a better way to manage your network Work email* First name* Last name* Company* country* Select country... Short answer* By submitting this form, I accept AlgoSec's privacy policy Continue

Find the best firewall audit tools to ensure PCI DSS compliance. Streamline your audits, identify vulnerabilities, and maintain a secure network environment. Best firewall audit tools for PCI security compliance What is firewall audit tools for PCI security compliance? Today, every organization operates in a challenging business landscape where success is not guaranteed by the quality of its products or services. It is equally important for the company to comply with all applicable laws, regulations, and standards, including the regulations related to IT security and data privacy. However, maintaining compliance is not easy because many regulations are extremely strict and are constantly changing. One example of such a regulation is the Payment Card Industry Data Security Standard (PCI-DSS). Even organizations with a robust IT security ecosystem struggle to achieve compliance, more so if they have implemented multiple firewalls, each with its own ruleset and policy base. They must regularly audit these rulesets to ensure that every firewall is working as expected to strengthen the organization’s security posture. A detailed and regular firewall audit enables businesses to monitor firewall configurations and rule changes, validate access controls, and ultimately, ensure that firewalls comply with internal and external security standards. That said, when organizations manage thousands of firewall rules, they often struggle to conduct audits using manual processes. Fortunately, implementing a firewall audit and compliance tool can simplify the audit effort. It can also ease compliance with internal security policies and external regulatory standards such as PCI-DSS. Let’s explore. Schedule a Demo What does a firewall audit tool do? All organizations face firewall management issues, especially when there are many firewalls and associated rules to manage. An automated firewall audit tool simplifies the effort to analyze firewall configurations and identify compliance gaps. The tool automatically analyzes firewalls and their rulesets, replacing the need for manual processes and human intervention. It audits every rule and configuration that controls network traffic, including access control lists (ACLs), interfaces, and address translations. In addition, it continuously monitors firewall rule changes, and automatically runs audits on a pre-defined schedule. Finally, it flags the status of each compliance requirement and generates real-time reports about policy misconfigurations and compliance violations. By acting on these insights, your organization can update its firewall rules, which can then help improve network performance, reduce downtime, and improve overall security. Schedule a Demo What are the benefits of firewall audit tools? A manual firewall audit is often time-consuming and error-prone. Moreover, manual processes may not help you maintain continuous compliance – which most regulatory regimes require – if you have thousands of rulesets across many firewalls and routers, or if these rules change often. A firewall compliance tool simplifies firewall audits and compliance-related tasks. It continuously monitors all firewalls, and their rules and rule changes. Using sophisticated algorithms, the tool evaluates all firewall rules against internal corporate policies and external regulations such as PCI-DSS. It then identifies compliance vulnerabilities and generates audit reports so you can see where these gaps exist and initiate appropriate remediation measures. An advanced, feature-rich audit tool like AlgoSec checks all firewall policy changes for compliance violations before they are implemented so you can avoid the costs and efforts of after-the-fact remediations. Moreover, the entire change approval process is automatically documented, thus facilitating continuous, uninterrupted compliance across all firewalls throughout the organization. All in all, a firewall auditing solution incorporates automation, continuous monitoring, event correlation rules, and real-time reporting that will save you countless man-hours and funds that you normally spend on configuration cleanup and firewall optimization. Additionally, it will enable your organization to: Keep track of all firewalls and firewall activity logs in a central location Discover outdated, unused, or misconfigured rules that weaken network security, lead to downtime, or affect business continuity Identify where changes are needed to optimize performance and security Track and analyze suspicious or potentially malicious network events Automatically document all configuration changes to avoid security blind spots Demonstrate compliance to internal and external auditors The best tools support multiple firewall platforms and are well-suited for consolidating firewalls and streamlining their configurations. Schedule a Demo Firewall audit checklist A detailed and regular firewall audit is critical for managing firewall rules and maintaining the right firewall configurations. A single misconfigured or outdated rule can leave the entire network – and the organization – vulnerable to a cyberattack. A typical manual audit includes all these steps: Collect information about the network and its various elements, including hardware network devices, software applications, VPNs, and ISPs Collect firewall logs Collect information related to operating systems, default configurations, and latest patches Assess the existing rule-base change-management process to confirm whether changes and validations are done reliably, transparently, and with proper documentation Audit every firewall’s physical and software security posture by evaluating:Device administration, security management, and configuration management procedures Whether operating systems are sufficiently hardened Whether firewall activities are recorded and logged Whether an Intrusion Detection System (IDS) is in place Whether patches and updates are implemented by firewall vendors Whether access controls are in place for firewall and management servers Who is allowed to access the firewall server rooms and make device configuration changes Remove unused and expired rules to optimize the rule-base Evaluate policy usage against firewall logs to identify (overly) permissive rules Analyze VPN parameters to identify and remove unused connections, irrelevant routes, and expired/unused users/user groups Perform a detailed risk assessment to discover risky and non-compliant rules based on internal policies and industry standards and best practices (e.g., PCI-DSS) Prioritize rules in terms of severity and the organization’s criteria for “acceptable” risk Implement appropriate remediations Review firewall backup, encryption, and restore-processes for recovery from disasters, and maintain business continuity All these steps – not to mention a robust risk management process – are essential to ensure reliable and insightful firewall audits. But the effort can quickly become overwhelming if there are a large number of firewalls and each firewall has a vast rule-base. Here’s where automated compliance audits with a tool like AlgoSec are very valuable. For a more detailed checklist that will help you simplify firewall auditing, and reduce cybersecurity risks in your IT environment, click here . Schedule a Demo How AlgoSec simplifies firewall audits AlgoSec’s security policy management solution simplifies and streamlines firewall security audits. All you need to do is follow four easy steps: Ensure that your network is fully integrated with the AlgoSec platform In AlgoSec Firewall Analyzer, click “Devices” and then “All Firewalls” Click “All Reports” and then the listed report Click “Regulatory Compliance” This simple process is all you need to conduct an effective and comprehensive firewall audit and to maintain compliance with PCI-DSS and other regulations. Make your firewalls audit-ready and compliant using AlgoSec AlgoSec’s solution does all the heavy lifting with regard to the auditing of firewall rulesets and configurations. It is designed to ensure that your configurations satisfy the criteria for both external regulatory standards such as PCI-DSS and internal security policies. AlgoSec’s solution also helps you reduce overall risk factors and improve firewall performance by: Instantly generating audit-ready reports for all major regulations, including PCI-DSS, HIPAA, SOX, and NERC Generating detailed and customizable reports for internal compliance requirements Proactively checking every rule change for compliance violations Flagging non-compliant rules and devices Providing a detailed audit trail of all firewall changes, approval processes, and violations All in all, AlgoSec gives you all the information you need to remediate problems in your firewall devices and rules and to ensure continuous compliance across the network. Maintaining continuous PCI-DSS compliance with AlgoSec PCI-DSS compliance is mandatory for any business that processes customers’ credit cards. Its guidelines are intended to enhance the security of card data, and protect cardholders from security events such as data breaches and identity theft. The standard specifies 12 requirements that organizations must meet. One of these requirements is to install and maintain a firewall to prevent unauthorized system access and protect cardholder data. Businesses must also implement controls to properly configure firewalls, and create configurations that restrict connections between the cardholder data environment and untrusted networks. In addition, they must document all security policies and operational procedures for managing firewalls. Firewall audits can help organizations maintain the correct firewall rules, strengthen network security, and meet PCI-DSS requirements. AlgoSec’s solution simplifies the effort with automation, continuous monitoring, and out-of-the-box templates. It also provides change audit trails and audit-ready compliance reports to satisfy both external regulatory requirements and internal regulations. Furthermore, it provides custom analyses, reports, and notifications that help you to periodically review all firewall configurations, identify security issues and compliance gaps, and take action to maintain compliance with PCI-DSS. Other industry standards supported by AlgoSec PCI-DSS is not the only set of standards supported by solution. In fact, it supports a wide range of many leading industry standards and regulations, including: HIPAA SOX ISO 27001 NERC Basel II FISMA GLVA NIST 800-41 GDPR The solution automatically generates pre-populated, audit-ready compliance reports for all these regulations and customized reports for your internal corporate policies to help you maintain compliance with all relevant laws and standards. Additionally, it helps you to reduce firewall audit preparation efforts and costs by as much as 80%— making life much easier for you as well as your auditors. Schedule a Demo Checklist and best practices for configuring and reviewing firewall rules Most modern-day organizations are grappling with an ever-expanding cyber threat landscape. Clever attackers armed with sophisticated tools make businesses vulnerable to many kinds of undesirable events, such as data breaches and malware attacks. External laws and regulations as well as internal security controls are meant to prevent such events and enable firms to protect their IT assets and sensitive data. One of the most important controls is the network firewall, which is often the first line of defense between the enterprise network and the public Internet. Since the firewall is so important for strengthening enterprise security and for maintaining a strong regulatory compliance posture, all its configurations and rules must be properly set up and optimized. Here is where regular firewall audits play an important role. In the previous section, we covered a step-by-step firewall audit checklist. This section covers some best practices for configuring your firewall rules, and a checklist for reviewing and optimizing them. Optimizing your rule-base will enable you to improve firewall performance, reduce security risk, and maintain compliance with PCI-DSS and other standards. Checklist for conducting firewall rule-base reviews It is useful to follow this checklist to review and optimize your firewall rule-base and improve firewall performance: Does the tool understand the network topology, VLAN architecture, and IP address scheme? Is there a cleanup rule to block malicious traffic that doesn’t follow any rule? Do you have rules for firewall management? Are logs enabled for each rule? Are limited ports defined for access to management? Are large subnets blocked from accessing the firewall? If a particular subnet is given access, is there an appropriate business rationale behind the decision? Are there duplicate objects, services, or host networks in the rule-base? Are the best or business-critical services correctly positioned within the rule-base? And are out-of-use services removed from the rule-base? Are there outdated, legacy, excess, shadow, or expired rules in the rule-base? Do any rules allow risky services, which are outbound to or inbound from the Internet? Are any rules overly permissive? Are the rules consistently named? Do they contain recognizable headers and comments to make them easier to understand? Is two-way access configured in the network infrastructure? Is it used for legitimate reasons? Are rules configured to ensure that vulnerable ports and services are not allowed? Are there similar rules that could be combined into a single rule? In addition to using this checklist, make sure that all firewall rules align with the organization’s policy matrix and corporate network security policy. The matrix specifies whether traffic should be allowed or blocked from every zone and VLAN in the network. An automated firewall rule audit tool or solution can find the answers to all these questions and ensure alignment with the policy matrix and security policy. With its built-in audit capabilities, it quickly completes rule-base reviews and generates detailed reports that will help you conduct (and pass) firewall audits. Best practices to configure firewall rules The right rules are crucial to maintaining firewall performance and network security. A below-par rule-base can create serious security loopholes that allow malicious traffic to sneak in and operational loopholes that block legitimate traffic. The best way to avoid these problems is to properly frame and configure robust firewall rules. To do so, it’s important to adhere to these best practices: Clearly document the purpose of each firewall rule and which services, users, and devices it affects Add an expiration date to temporary rules Group similar rules by categories or section titles to make rules easier to understand and to determine their best order Create a formal change process to govern and control all policy changes Monitor the change process to prevent poor firewall configurations and associated security risks As much as possible, implement least privileged security policies, which will help minimize the attack surface Use an automated management and monitoring tool to standardize firewall policies and rules in a scalable manner List and categorize all source IPs, destination IPs, and destination ports to simplify firewall rule creation Include as many parameters in the rules as possible Use address and service sets to simplify rule management and adjustments Use drop rules to capture unclassified traffic and ensure it doesn’t infiltrate a security policy Offer access only to known services and to specific traffic By following these best practices, you will get more control over your firewalls and protect the network from suspicious and malicious traffic. Make sure to also review all firewall rules regularly with the help of a regular maintenance schedule as well as firewall auditing and management tools. It is also good practice to regularly review firewall logs for any changes or indications that firewall settings, or rules, need to be adjusted. Schedule a Demo Ready for stress-free firewall audits with AlgoSec AlgoSec’s Firewall Analyzer (AFA) provides complete visibility into enterprise networks and firewall rulesets. Use AFA to see where traffic is blocked in your network and accordingly configure policies from a single, unified interface. If you have multiple firewalls, you probably have a hard time configuring the rules for each. And if you want to allow or deny something, you probably have to log into each firewall and make the requisite changes. All this hassle is eliminated with AFA’s automated security policy management capabilities. With this intuitive yet powerful security policy management solution , you can automatically create, update, clean up, and optimize all policies from a single administration panel and workflow. AFA will reduce your firewall and security audit preparation time and costs with audit-ready reports. It will also assist you with PCI-DSS compliance and firewall security optimization. Click here for a free demo of AlgoSec Firewall Analyzer. Schedule a Demo Select a size What is firewall audit tools for PCI security compliance? What does a firewall audit tool do? What are the benefits of firewall audit tools? Firewall audit checklist How AlgoSec simplifies firewall audits Checklist and best practices for configuring and reviewing firewall rules Ready for stress-free firewall audits with AlgoSec Get the latest insights from the experts Use these six best practices to simplify compliance and risk White paper Learn how AlgoSec can help you pass PCI-DSS Audits and ensure Solution overview See how this customer improved compliance readiness and risk Case study Choose a better way to manage your network

Algosec for Azure automates security policy management, enhances visibility, and ensures compliance across your Azure cloud environment. Microsoft Azure & AlgoSec Visibility, Risk Management and Change Automation for Azure Environments AlgoSec manages security policies across cloud, hybrid and on-prem environments, delivering proactive risk and compliance analysis, end-to-end change management and automation – all in the business application context. AlgoSec supports enterprises in their journey to the cloud by automatically mapping existing application connectivity prior to the migration, determining and facilitating required connectivity changes during the move, and ensuring continuous compliance and automated change management in the newly established hybrid cloud environment. AlgoSec completes the picture, providing clear visibility and effective management of Microsoft Azure’s native security constructs – Network Security Groups (NSGs) and Azure Firewalls – as well as 3rd party virtual firewalls deployed in the Azure cloud. AlgoSec for Microsoft Azure firewall is available now. Sign up here Automated Security Policy Management for Azure Network Security Groups With AlgoSec, you gain visibility into your entire Azure cloud estate, including network topology and connectivity, the effective security enforcement by Azure Network Security Groups, and aggregated risk and compliance analysis across Azure and 3rd party security devices. AlgoSec also provides an end-to-end change management and automation solution, covering security policies in the cloud, as well as on-premises SDN and traditional networks. Central Management for Azure Firewall Azure Firewall is a new managed, cloud-based network security service that protects your Azure Virtual Network resources. With AlgoSec, you can manage multiple instances of the Azure Firewall using a shared policy model, to facilitate and automate security policy management in multi-region cloud environments. In addition, the AlgoSec solution provides end-to-end visibility and management capabilities across the Azure Firewalls, Azure NSGs and 3rd party firewalls, in the cloud and on-prem. Key benefits Unified security Unified security policy management across cloud, SDN and on-premise networks Cloud visibility Visibility into the Azure cloud network, topology and connectivity Securing cloud estate Securing your cloud estate from misconfigurations with risk alerts as well as overall risk visibility Automation Automated Azure NSG and 3rd party firewall changes, eliminating misconfigurations and rework Proactive assessment Proactive assessment the impact of network changes to ensure continuous compliance Simplified and automate Simplified and automate internal and regulatory audits, and reduce time and costs by as much as 80% Cloud and Hybrid Environments Download infographic Schedule time with one of our experts

If you’ve had enough of manual policy changes but security concerns are holding you back from automating policy change management, this webinar is just for you Webinars The quick guide to change automation: Turning network security alerts into action You use multiple network security controls in your organization, but they just don’t talk to each other. And while you probably get alerts from SIEM solutions and vulnerability scanners, responding to them feels like a never-ending game of whack-a-mole. If you’ve had enough of manual policy changes but security concerns are holding you back from automating policy change management, this webinar is just for you. Learn how to transform your network security policies without replacing existing business processes -with enterprise-wide change automation. AlgoSec security expert Avivi Siman Tov will guide you how to: Increase agility, accelerate incident response, and reduce compliance violations and security misconfigurations. Automate security policy changes without breaking network connectivity. Analyze and recommend changes to your network security policies. Push network security policy changes with zero-touch automation to your multi-vendor security devices. Maximize ROI of your existing security controls by automatically analyzing, validating, and implementing network security policy changes. July 21, 2021 Avivi Siman Tov Director of Product Relevant resources FireFlow Demo Watch Video Network management & policy change automation Read an Ebook 6 best practices to stay secure in the hybrid cloud Read Document Choose a better way to manage your network Choose a better way to manage your network Work email* First name* Last name* Company* country* Select country... Short answer* By submitting this form, I accept AlgoSec's privacy policy Continue