MiniFast
- ID
- S9052
- Type
- Malware
- Platforms
- Windows
- Source
- attack.mitre.org
- MITRE last modified
- 2 Oct 2026
MiniFast is a custom malware designed for long-term persistence and remote code execution. MiniFast is a modular malware suspected of being generated using artificial intelligence (AI). MiniFast was first observed in early-2026 and is a modified version of the MiniJunk framework. MiniFast has been affiliated with the cyber espionage threat group NIMBUS MANTICORE.[1]
Techniques used (21)
- T1005 Data from Local System
- T1027.015 Compression
- T1033 System Owner/User Discovery
- T1036.012 Browser Fingerprint
- T1041 Exfiltration Over C2 Channel
- T1053.005 Scheduled Task
- T1057 Process Discovery
- T1059.003 Windows Command Shell
- T1070.004 File Deletion
- T1071.001 Web Protocols
- T1074.001 Local Data Staging
- T1082 System Information Discovery
- T1083 File and Directory Discovery
- T1105 Ingress Tool Transfer
- T1132.001 Standard Encoding
- T1134.002 Create Process with Token
- T1140 Deobfuscate/Decode Files or Information
- T1489 Service Stop
- T1553.002 Code Signing
- T1560.001 Archive via Utility
- T1680 Local Storage Discovery