CozyCar
MITRE ATT&CK: S0046 View on attack.mitre.org
Aliases: CozyDuke, CozyBear, Cozer, EuroAPT, CozyCar
- First seen
- 2010-01-01 00:00:00
- Malware type
- backdoor, rat
- Family
- Malware family
- Operating systems
- windows
- Last IoC activity
- 2026-07-22 03:16:30
- Profile updated
- 2026-07-07 13:20:35
Targeted industries: government-and-public-sector energy-and-utilities financial-services
Targeted regions: country_code:us country_code:fr country_code:nl
Context
CozyCar is malware that was used by APT29 from 2010 to 2015. It is a modular malware platform, and its backdoor component can be instructed to download and execute a variety of modules with different functionality.
Detection coverage
- 353 Sigma rules
Malware & tools used
- Windows Command Shell (attack-pattern)
- System Information Discovery (attack-pattern)
- Web Protocols (attack-pattern)
- Bidirectional Communication (attack-pattern)
- Registry Run Keys / Startup Folder (attack-pattern)
- Security Software Discovery (attack-pattern)
- Rundll32 (attack-pattern)
- LSASS Memory (attack-pattern)
- Virtualization/Sandbox Evasion (attack-pattern)
- Encrypted/Encoded File (attack-pattern)
- Security Account Manager (attack-pattern)
- Rename Legitimate Utilities (attack-pattern)
- Scheduled Task (attack-pattern)
- Windows Service (attack-pattern)
Used by threat actors
- APT29 (threat-actor)
- APT29 TeamCity Exploits (campaign)
Reports & references
- f-secure.com — Dukes Whitepaper (report)
- cocomelonc.github.io — Malware Pers 1 (report)
- malpedia.caad.fkie.fraunhofer.de — Win.Cozyduke (report)
- blog-assets.f-secure.com — F Secure Dukes Whitepaper (report)
- MITRE ATT&CK — S0046 (report)