Troll Stealer
MITRE ATT&CK: S1196 View on attack.mitre.org
Aliases: Troll Stealer
- First seen
- 2022-03-01 00:00:00
- Malware type
- credential-stealer, dropper
- Family
- Malware family
- Operating systems
- windows
- Profile updated
- 2026-07-07 13:22:11
Targeted industries: government-and-public-sector technology-and-telecommunications
Targeted regions: country_code:kr
Context
Troll Stealer is an information stealer written in Go associated with Kimsuky operations. Troll Stealer has typically been delivered through a dropper disguised as a legitimate security program installation file. Troll Stealer features code similar to AppleSeed, also uniquely associated with Kimsuky operations.
Detection coverage
- 405 Sigma rules
Malware & tools used
- Data from Local System (attack-pattern)
- Local Data Staging (attack-pattern)
- Screen Capture (attack-pattern)
- Standard Encoding (attack-pattern)
- Software Packing (attack-pattern)
- System Network Configuration Discovery (attack-pattern)
- Web Protocols (attack-pattern)
- PowerShell (attack-pattern)
- Code Signing (attack-pattern)
- Windows Command Shell (attack-pattern)
- Match Legitimate Resource Name or Location (attack-pattern)
- Private Keys (attack-pattern)
- Archive Collected Data (attack-pattern)
- Data from Information Repositories (attack-pattern)
- File and Directory Discovery (attack-pattern)
- Mutual Exclusion (attack-pattern)
- System Information Discovery (attack-pattern)
- Rundll32 (attack-pattern)
- Exfiltration Over C2 Channel (attack-pattern)
- Browser Information Discovery (attack-pattern)
- Symmetric Cryptography (attack-pattern)
- File Deletion (attack-pattern)
Used by threat actors
- Kimsuky (threat-actor)
Reports & references
- security.com — Springtail Kimsuky Backdoor Espionage (report)
- medium.com — Kimsuky Disguised As A Korean Company Signed With A Valid Certificate To Distribute Troll Stealer Cfa5D54314E2 (report)
- malpedia.caad.fkie.fraunhofer.de — Win.Troll Stealer (report)
- MITRE ATT&CK — S1196 (report)