ComRAT

ComRAT, also known as Agent.BTZ, is a potent malware that has evolved over the years to become a significant threat in the cybersecurity landscape. Developed using C++ and employing a virtual FAT16 file system, ComRAT is often used to exfiltrate sensitive documents. The malware is a remote access trojan (RAT) utilized by the Turla group, a cyber espionage group. Over time, several variants of this malware have been identified, including a .NET injector variant from 2018 and multiple .NET injector variants from 2019, all associated with the ComRAT variant. The latest iteration of ComRAT, version 4, was active as of 2020. The ComRAT v4 malware was typically embedded within files such as 'profilec.py' by the same submitter, demonstrating its advanced techniques for infiltration and persistence. This malware variant is characterized by its use of sophisticated MITRE ATT&CK techniques in its attacks. Additionally, it has been associated with other complex implants used by Turla, such as Carbon and Gazer. In one notable instance, a PowerShell dropper was used to drop ComRAT to disk, an action detected by Cortex XDR in detect mode. Prevention and detection alerts were raised for each malware, including ComRAT, with its DLL execution and PowerShell dropper execution prevention alerts shown in Cortex XDR. This highlights the importance of robust cybersecurity measures in combating threats like ComRAT. Despite its evolution over a ten-year journey, the fight against ComRAT continues, underscoring the ongoing challenge of managing and mitigating advanced persistent threats in today's digital environment.