FELIXROOT
MITRE ATT&CK: S0267 View on attack.mitre.org
Aliases: GreyEnergy mini, FELIXROOT
- First seen
- 2018-04-01 00:00:00
- Malware type
- backdoor
- Family
- Malware family
- Operating systems
- windows
- Profile updated
- 2026-07-07 15:01:15
Targeted industries: government-and-public-sector energy-and-utilities
Targeted regions: country_code:ua
Context
FELIXROOT is a backdoor that has been used to target Ukrainian victims.
Detection coverage
- 424 Sigma rules
Malware & tools used
- Process Discovery (attack-pattern)
- Modify Registry (attack-pattern)
- Local Storage Discovery (attack-pattern)
- Security Software Discovery (attack-pattern)
- Encrypted/Encoded File (attack-pattern)
- System Information Discovery (attack-pattern)
- Query Registry (attack-pattern)
- Web Protocols (attack-pattern)
- System Network Configuration Discovery (attack-pattern)
- Windows Management Instrumentation (attack-pattern)
- System Time Discovery (attack-pattern)
- Archive Collected Data (attack-pattern)
- Rundll32 (attack-pattern)
- System Owner/User Discovery (attack-pattern)
- Shortcut Modification (attack-pattern)
- Ingress Tool Transfer (attack-pattern)
- Windows Command Shell (attack-pattern)
- Registry Run Keys / Startup Folder (attack-pattern)
- File Deletion (attack-pattern)
Reports & references
- malpedia.caad.fkie.fraunhofer.de — Win.Felixroot (report)
- medium.com — When A Malware Is More Complex Than The Paper 5822Fc7Ff257 (report)
- ESET — Eset Greyenergy (report)
- Mandiant — Microsoft Office Vulnerabilities Used To Distribute Felixroot Backdoor (report)
- MITRE ATT&CK — S0267 (report)
- web.archive.org — Microsoft Office Vulnerabilities Used To Distribute Felixroot Backdoor (report)