Agent.btz

Malware Profile Updated 25 days ago
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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 documents from infected systems. Turla, another advanced persistent threat (APT) group, reportedly uses the same filenames and encryption key as Agent.btz for its log files stored on compromised systems, indicating a shared lineage or inspiration between these cyber threats. The worm named Agent.btz caused a significant breach of U.S. military systems around 2008, exposing critical vulnerabilities and leading to the creation of the U.S. Cyber Command, a military command tasked with defending Department of Defense networks and conducting offensive cyber operations. The infection began when a flash drive carrying the malware was inserted into a laptop at a U.S. military base in the Middle East. From there, it spread undetected across the Department of Defense's network and into combat zones. The Pentagon spent nearly 14 months eradicating the worm from its networks, suggesting the scale and sophistication of the attack. Given the global reach and impact of the worm, it is believed that tens of thousands of USB flash drives worldwide contain files named "thumb.dd" created by Agent.btz, which hold information about infected systems. Russia is suspected of being behind the incident, although this has not been definitively proven. The malware was designed to steal documents from both classified and unclassified U.S. military networks. In summary, Agent.btz can be regarded as a starting point in the chain of creation of several different cyber-espionage projects, having had a profound influence on subsequent malware development and cyber warfare tactics.
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Possible Aliases / Cluster overlaps
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IDVotesProfile Description
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
ComRAT
3
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 tr
Miscellaneous Associations
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Malware
Worm
Espionage
Associated Malware
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IDTypeVotesProfile Description
MazeUnspecified
2
Maze is a type of malware, specifically ransomware, that gained notoriety in 2019 for its double extortion tactic. This malicious software infects systems through suspicious downloads, emails, or websites and can steal personal information, disrupt operations, or hold data hostage for ransom. Maze w
Moonlight MazeUnspecified
2
Moonlight Maze is a notorious malware that emerged in the 1990s, primarily targeting government, military, and defense sector entities. This malicious software was designed to exploit and damage computer systems, often infiltrating them through suspicious downloads, emails, or websites without the u
Associated Threat Actors
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IDTypeVotesProfile Description
TurlaUnspecified
5
Turla, also known as Pensive Ursa, Snake, Uroburos, Waterbug, Venomous Bear, and KRYPTON, is a threat actor that has been active since at least 2004. This group, which is believed to be Russia-sponsored, primarily targets diplomatic and government organizations, private businesses, and non-governmen
Associated Vulnerabilities
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Source Document References
Information about the Agent.btz Malware was read from the documents corpus below. This display is limited to 20 results, create a free account to see more
SourceCreatedAtTitle
CERT-EU
a year ago
Matthieu Faou | WeLiveSecurity
MITRE
a year ago
The ‘Penquin’ Turla
CERT-EU
a year ago
Air-Gapped Computers Vulnerable to Data Stealing Through Internal Speakers
CERT-EU
9 months ago
Connect the Dots on State-Sponsored Cyber Incidents - Agent.btz
Trend Micro
8 months ago
Examining the Activities of the Turla APT Group
CERT-EU
a year ago
FBI disrupts sophisticated Russian cyberespionage operation
CERT-EU
a year ago
US, partners dismantle malware network used in 20-year Russian spy campaign
BankInfoSecurity
a year ago
Feds Dismember Russia's 'Snake' Cyberespionage Operation
CERT-EU
a year ago
Министерство юстиции США заявило, что оно нарушило работу одного из самых сложных кибершпионских инструментов
CERT-EU
a year ago
Южнокорейские исследователи изобрели скрытый метод эксфильтрации CASPER, задействующий обычный компьютерный спикер
Unit42
8 months ago
Threat Group Assessment: Turla (aka Pensive Ursa)
DARKReading
a year ago
FBI Disarms Russian FSB 'Snake' Malware Network
MITRE
a year ago
Agent.btz: a Source of Inspiration?