Outbreak Alert
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APT group exploiting Log4j2 vulnerability to deploy Remote Access Trojans (RAT)
A new campaign conducted by the Lazarus Group is seen employing new DLang-based Remote Access Trojans (RATs) malware in the wild. The APT groups has been seen to target manufacturing, agricultural and physical security companies by exploiting the Log4j vulnerability and using it for initial access leading to a C2 (command and control) channel with the attacker. Learn More »
Common Vulnerabilities and Exposures
Background
Lazarus is an advanced persistent threat (APT) actor sponsored by the North Korean government. In this particular campaign, Lazarus’s initial access begins with successful exploitation of CVE-2021-44228, the infamous Log4j vulnerability discovered in 2021. Log4Shell is an unauthenticated remote code execution (RCE) flaw that allows taking complete control over systems using vulnerable versions of Log4j library. The flaw was discovered as an actively exploited zero-day on December 10, 2021, and its widespread impact, ease of exploitation, and massive security implications acted as an open invitation to threat actors. To learn more please read the outbreak report: https://www.fortiguard.com/outbreak-alert/log4j2-vulnerability
Threat Radar Overall Score:
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CVSS Rating | 10.0 |
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FortiRecon Score | 95/100 |
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Known Exploited | Yes |
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Exploit Prediction Score | 97.56% |
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FortiGuard Telemetry | 82370 |
Latest Development
Recent news and incidents related to cybersecurity threats encompassing various events such as data breaches, cyber-attacks, security incidents, and vulnerabilities discovered.
December 11, 2023: Cisco Talos posted a blog and shared latest findings on;
https://blog.talosintelligence.com/lazarus_new_rats_dlang_and_telegram
Fortinet customers remain protected by the IPS signature "Apache.Log4j.Error.Log.Remote.Code.Execution" and the Antivirus detections for the related Remote Access Trojans (RATs).
December, 2023: According to the FortiGuard telemetry, there is a significant increased activity in the IPS detection of upto 65,000+ unique IPS devices. However, this particular campaign is just one of the instance where threat actors are still actively targeting the log4j vulnerability and using it as an initial access due to its widespread usage.
According to a report by Veracode, over 30% of Log4J apps still use a vulnerable version of the library after 2 years of the patches being released and a log4j dashboard by Sonatype shows, 25% of the library’s downloads in the past week concerning vulnerable versions, https://www.sonatype.com/resources/log4j-vulnerability-resource-center
FortiGuard Labs recommends companies to scan their environment, find the versions of open-source vulnerable libraries in use, and develop an upgrade plan for them and always follow best practices.
Attack Sequence
Actions taken by cyber attacker or a malicious entity to compromise a target system or network.
FortiGuard Cybersecurity Framework
Mitigate security threats and vulnerabilities by leveraging the range of FortiGuard Services.
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Decoy VM
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AV
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Vulnerability
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AV (Pre-filter)
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IPS
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Web App Security
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Post-execution
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Outbreak Detection
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Threat Hunting
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Playbook
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Assisted Response Services
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Automated Response
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NOC/SOC Training
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End-User Training
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Attack Surface Hardening
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Vulnerability Management
Threat Intelligence
Information gathered from analyzing ongoing cybersecurity events including threat actors, their tactics, techniques, and procedures (TTPs), indicators of compromise (IOCs), malware and related vulnerabilities.
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Indicators of compromise
IOC Indicator List
Indicators of compromise
IOC Threat Activity
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References
Sources of information in support and relation to this Outbreak and vendor.