kimsuky-velvet-chollima
Adversary-emulation profile for Kimsuky (G0094 / Velvet Chollima / Emerald Sleet / THALLIUM / Black Banshee / APT43 / TA427), North Korea's RGB 63rd Research Center cyber-espionage actor.
59
68%
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Critical
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tessl review fix ./packages/decepticon/decepticon/skills/shared/adversary-emulation/kimsuky/SKILL.mdSecurity
2 findings: 1 critical severity, 1 medium severity. Installing this skill is not recommended: please review these findings carefully if you do intend to do so.
E006: Malicious code pattern detected in skill scripts.
What this means
Detected high-risk code patterns in the skill content — including its prompts, tool definitions, and resources — such as data exfiltration, backdoors, remote code execution, credential theft, system compromise, supply chain attacks, and obfuscation techniques.
Why it was flagged
The document contains explicit, actionable instructions for credential harvesting, malicious browser extension deployment, backdoor/C2 use, automated exfiltration, and persistence—high-risk content that can be directly abused.
W013: Attempt to modify system services in skill instructions.
What this means
The skill prompts the agent to compromise the security or integrity of the user’s machine by modifying system-level services or configurations, such as obtaining elevated privileges, altering startup scripts, or changing system-wide settings.
Why it was flagged
The skill explicitly instructs creating persistence (registry Run keys, systemd/cron services), using privilege-escalation and credential-dumping tools (Mimikatz, ProcDump), and creating/adding accounts—actions that modify system state and require elevated privileges.
- Repository
- PurpleAILAB/Decepticon
- Commit
4484f85
- Audited
- Security analysis
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