MITRE ATT&CKsoftware (malware)
S9032 MuddyViper
- Domain
- enterprise
- Platforms
- Windows
- Version
- 1.0
- Created
- 2026-04-20
Description
MuddyViper is custom backdoor written in C and C++ used by MuddyWater for command and control (C2) communications and persistence. MuddyViper is loaded by Fooder and sends frequent messages to the C2 server.
Related
Uses · MITRE ATT&CK (18)
- T1678 Delay Execution technique
- T1620 Reflective Code Loading technique
- T1573.001 Symmetric Cryptography sub-technique
- T1071.001 Web Protocols sub-technique
- T1059.001 PowerShell sub-technique
- T1059.003 Windows Command Shell sub-technique
- T1518.001 Security Software Discovery sub-technique
- T1560 Archive Collected Data technique
- T1056.002 GUI Input Capture sub-technique
- T1547.001 Registry Run Keys / Startup Folder sub-technique
- T1053.005 Scheduled Task sub-technique
- T1140 Deobfuscate/Decode Files or Information technique
- T1041 Exfiltration Over C2 Channel technique
- T1057 Process Discovery technique
- T1059 Command and Scripting Interpreter technique
- T1105 Ingress Tool Transfer technique
- T1106 Native API technique
- T1112 Modify Registry technique
Referenced by MITRE ATT&CK · uses (1)
- G0069 MuddyWater group
References
- https://www.welivesecurity.com/en/eset-research/muddywater-snakes-riverbank/ ESET_MuddyWater_Dec2025