Out1
MITRE ATT&CK: S0594 View on attack.mitre.org
Aliases: Out1
- First seen
- 2021-01-01 00:00:00
- Malware type
- rat
- Family
- Malware family
- Operating systems
- windows
- Profile updated
- 2026-07-07 12:52:14
Targeted industries: government-and-public-sector energy-and-utilities technology-and-telecommunications
Targeted regions: country_code:sa country_code:ir country_code:tr
Context
Out1 is a remote access tool written in python and used by MuddyWater since at least 2021.
Detection coverage
- 158 Sigma rules
Malware & tools used
- Web Protocols (attack-pattern)
- Obfuscated Files or Information (attack-pattern)
- Windows Command Shell (attack-pattern)
- Data from Local System (attack-pattern)
- Local Email Collection (attack-pattern)
Used by threat actors
- MuddyWater (threat-actor)
Reports & references
- Trend Micro — Earth Vetala Muddywater Continues To Target Organizations In T (report)
- MITRE ATT&CK — S0594 (report)