GrimAgent

MITRE
Malware Type:
Other
First seen:
Unknown
Last seen:
Unknown
Details:

[GrimAgent](https://attack.mitre.org/software/S0632) is a backdoor that has been used before the deployment of [Ryuk](https://attack.mitre.org/software/S0446) ransomware since at least 2020; it is likely used by [FIN6](https://attack.mitre.org/groups/G0037) and [Wizard Spider](https://attack.mitre.org/groups/G0102).(Citation: Group IB GrimAgent July 2021)

Associated Techniques (25)
ID ATT&CK Tactics
T1001.001 Junk Data -
T1005 Data from Local System -
T1016 System Network Configuration Discovery -
T1027 Obfuscated Files or Information -
T1027.001 Binary Padding -
T1033 System Owner/User Discovery -
T1041 Exfiltration Over C2 Channel -
T1053.005 Scheduled Task -
T1059.003 Windows Command Shell -
T1070.004 File Deletion -
T1070.009 Clear Persistence -
T1071.001 Web Protocols -
T1082 System Information Discovery -
T1083 File and Directory Discovery -
T1105 Ingress Tool Transfer -
Metadata
ID: 556
Created: 13/01/2026 17:48
Updated: 06/03/2026 16:00