ComRAT

Malware Profile Updated 3 months ago

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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.

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Possible Aliases / Cluster overlaps

It's hard to track cluster overlaps and naming conventions between vendors, so here are some possible overlapping names / profiles you also may want to look at.

ID	Votes	Profile Description
Snake	3	Snake, also known as EKANS, is a significant threat actor that has been active since at least 2004, with its activities potentially dating back to the late 1990s. This group, which may have ties to Iran, targets diplomatic and government organizations as well as private businesses across various reg
Agent.btz	3	Agent.btz, also known as ComRAT v4, is a remote access trojan (RAT) developed using C++ and employing a virtual FAT16 file system. This malicious software was one of the earliest backdoors used by Pensive Ursa, a cyber-espionage group. Notably, the malware is frequently used to exfiltrate sensitive
Comrat V4	3	ComRAT v4, also known as Agent.BTZ, is a sophisticated malware developed using C++ and employing a virtual FAT16 file system. This malicious software is a Remote Access Trojan (RAT) primarily used by the Turla group, a cyber-espionage entity. The primary function of ComRAT v4 is to exfiltrate sensit
HyperStack	1	HyperStack, also known as SilentMoo or BigBoss, is a Remote Procedure Call (RPC) backdoor malware that was first observed in 2018. It has been utilized in operations targeting European government entities and is linked to the Russian-based threat group Pensive Ursa, which has been operational since
KOPILUWAK	1	KopiLuwak is a JavaScript-based malware used for command and control (C2) communications and victim profiling. It was initially dropped by Pensive Ursa using an MSIL dropper in a G20-themed attack in 2017, and later as a self-extracting archive (SFX) executable in late 2022. Upon execution, the SFX
TinyTurla	1	TinyTurla is a sophisticated malware linked to the Russia-sponsored threat actor, Turla APT. This malicious software has been utilized in a targeted campaign against Polish Non-Governmental Organizations (NGOs), particularly those with connections to supporting Ukraine. TinyTurla operates as a backd
Capibar	1	Capibar, a new malware identified as part of the arsenal of the Russian-based threat group Turla (also known as Pensive Ursa, Uroburos, or Snake), has been used in recent cyberattacks. This group, linked to the Russian Federal Security Service (FSB) and active since at least 2004, has deployed Capib

Miscellaneous Associations

Other elements of context that could aid in the identification of relevance

Malware

Implant

Backdoor

Net

Ironpython

Injector

Dropper

Payload

Mitre

Associated Malware

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ID	Type	Votes	Profile Description
Uroburos	Unspecified	2	Uroburos, also known as Snake, Turla, Pensive Ursa, and Venomous Bear, is a sophisticated malware linked to the Russian Federal Security Service (FSB). The development of this malicious software began in late 2003, with its operations traced back to at least 2004. Uroburos is part of a broader arsen
Chinch	Unspecified	2	None
Mosquito	Unspecified	2	The "Mosquito" malware is a harmful software designed to exploit and damage computer systems or devices. It operates covertly, infiltrating systems through suspicious downloads, emails, or websites, often unbeknownst to the user. Once inside, it has the capability to steal personal information, disr
Gazer	Unspecified	1	Gazer is a second-stage backdoor malware written in C++ that was unveiled by Turla in August. It was discovered to have been deployed through watering-hole attacks and spear-phishing campaigns, enabling more precise targeting of victims. The malware is attributed to Pensive Ursa due to strong simila
Kazuar	Unspecified	1	Kazuar is a sophisticated multiplatform trojan horse malware, linked to the Russian-based threat group Turla (also known as Pensive Ursa, Uroburos, Snake), which has been operating since at least 2004. This group, believed to be connected to the Russian Federal Security Service (FSB), utilizes an ar

Associated Threat Actors

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ID	Type	Votes	Profile Description
Turla	Unspecified	5	Turla, also known as Pensive Ursa, is a sophisticated threat actor linked to Russia that has been active for many years. The group is known for its advanced cyber-espionage capabilities and has been associated with numerous high-profile breaches. According to the MITRE ATT&CK and MITRE Ingenuity dat
Pensive	Unspecified	1	Pensive Ursa, also known as Turla or Uroburos, is a Russian-based threat group that has been active since at least 2004 and is linked to the Russian Federal Security Service (FSB). The group employs advanced and stealthy tools like Kazuar, a .NET backdoor used as a second stage payload. In 2023, Pen
Turla’s	Unspecified	1	None
Waterbug	Unspecified	1	Waterbug, also known as Turla, Venomous Bear, and other aliases, is a cyberespionage group closely affiliated with the FSB Russian intelligence agency. This threat actor has been active since at least 2004, targeting government entities, intelligence agencies, educational institutions, research faci
Pensive Ursa	Unspecified	1	Pensive Ursa, also known as Turla, Uroburos, Venomous Bear, and Waterbug, is a Russian-based advanced persistent threat (APT) group that has been operating since at least 2004. The group, linked to the Russian Federal Security Service (FSB), is renowned for its sophisticated cyber-espionage activiti

Associated Vulnerabilities

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ID	Type	Votes	Profile Description
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Source Document References

Information about the ComRAT Malware was read from the documents corpus below. This display is limited to 20 results, create a free account to see more

Source	CreatedAt	Title
DARKReading	9 months ago	Upgraded Kazuar Backdoor Offers Stealthy Power
Trend Micro	10 months ago	Examining the Activities of the Turla APT Group
Unit42	10 months ago	Threat Group Assessment: Turla (aka Pensive Ursa)
CERT-EU	a year ago	Russia’s 'Turla' Group – A Formidable Cyberespionage Adversary
BankInfoSecurity	a year ago	Russian Hackers Probe Ukrainian Defense Sector With Backdoor
CERT-EU	a year ago	Matthieu Faou \| WeLiveSecurity
MITRE	a year ago	A dive into Turla PowerShell usage \| WeLiveSecurity
MITRE	a year ago	Shedding Skin - Turla’s Fresh Faces \| Securelist
MITRE	a year ago	IronNetInjector: Turla’s New Malware Loading Tool
CERT-EU	a year ago	Kaspersky Analyzes Links Between Russian State-Sponsored APTs
CISA	a year ago	Hunting Russian Intelligence “Snake” Malware \| CISA
CERT-EU	a year ago	Hunting Russian Intelligence “Snake” Malware - KizzMyAnthia.com