DCSrv
MITRE ATT&CK: S1033 View on attack.mitre.org
Aliases: DCrSrv, DCSrv
- First seen
- 2021-09-01 00:00:00
- Malware type
- wiper, ransomware
- Family
- Malware family
- Operating systems
- windows
- Profile updated
- 2026-07-07 13:00:26
Targeted industries: government-and-public-sector energy-and-utilities
Targeted regions: country_code:ir country_code:sa
Context
DCSrv is destructive malware that has been used by Moses Staff since at least September 2021. Though DCSrv has ransomware-like capabilities, Moses Staff does not demand ransom or offer a decryption key.
Detection coverage
- 149 Sigma rules
Malware & tools used
- Masquerade Task or Service (attack-pattern)
- Windows Service (attack-pattern)
- System Shutdown/Reboot (attack-pattern)
- Modify Registry (attack-pattern)
- Encrypted/Encoded File (attack-pattern)
- System Time Discovery (attack-pattern)
- Data Encrypted for Impact (attack-pattern)
- Native API (attack-pattern)
Used by threat actors
- Moses Staff (threat-actor)
Reports & references
- research.checkpoint.com — Mosesstaff Targeting Israeli Companies (report)
- malpedia.caad.fkie.fraunhofer.de — Win.Dcsrv (report)
- MITRE ATT&CK — S1033 (report)