Threat Signal ReportLazarus RAT Attack
| What is the Attack? | A new attack campaign led by the Lazarus threat actor group is seen employing new DLang-based Remote Access Trojan (RAT) malware. The attack attempts to exploit the Apache Log4j2 vulnerability (CVE-2021-44228) as initial access. Once compromised, it eventually creates a command and control (C2) channel. |
| What is the Vendor Solution? |
Apache has released relevant updates in 2021 on https://logging.apache.org/log4j/2.x/security.html. CISA has provided guidance on mitigating the vulnerability at https://www.cisa.gov/news-events/news/apache-log4j-vulnerability-guidance. |
| What FortiGuard Coverage is available? |
FortiGuard Labs has an IPS signature "Apache.Log4j.Error.Log.Remote.Code.Execution" (with default action is set to "block") in place for CVE-2021-44228 and has released Antivirus signatures for the RAT malware related to the Lazarus campaign.
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. |
Outbreak Alert
A 0-day exploit was discovered on a popular Java library Log4j2 that can result to a Remote Code Execution (RCE). This is a widely deployed library, and while systems protected by Fortinet Security Fabric are secured by the protections below, all systems need to upgrade ASAP as this is 10.0 severity. Due to the high visibility and attention, subsequent vulnerabilities have since emerged.
View the full Outbreak Alert Report
Joint Cybersecurity Advisory (CSA) has released the top Common Vulnerabilities and Exposures (CVEs) used since 2020 by Peoples Republic of China (PRC) state-sponsored cyber actors as assessed by the National Security Agency (NSA), Cybersecurity and Infrastructure Security Agency (CISA), and Federal Bureau of Investigation (FBI). Previously, FortiGuard labs has already published various Outbreaks Alerts included in the released CISA's advisory such as: Apache Log4j, Hikvision Webserver Vulnerability, Atlassian Confluence OGNL RCE Vulnerability, Microsoft Exchange Server RCE Vulnerabilities etc. See the full list at: https://www.fortiguard.com/outbreak-alert Links to dedicated reports on each published outbreak by FortiGuard Labs are added to Additional Resources section below.
View the full Outbreak Alert Report
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.
