apt33-elfin
Adversary-emulation profile for APT33 (Elfin, Peach Sandstorm, HOLMIUM), a suspected Iranian state-sponsored espionage group, mapped to MITRE ATT&CK G0064 with Decepticon emulation guidance.
62
73%
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Critical
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tessl review fix ./packages/decepticon/decepticon/skills/shared/adversary-emulation/apt33-elfin/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 adversary TTPs and emulation guidance that instructs credential theft (LSASS dumping), remote code execution/stager download, C2/backdoor setup (Sliver, Azure App Services), persistence mechanisms, obfuscation, and data exfiltration — all high-risk behaviors that can be abused for malicious operations.
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 the agent to perform host-modifying offensive actions (fetch-and-execute stagers, LSASS dumping, plant Run keys/WMI subscriptions/scheduled tasks, lateral movement/installation, and standing up C2), which create persistence or require elevated privileges and therefore compromise the machine state.
- Repository
- PurpleAILAB/Decepticon
- Commit
4484f85
- Audited
- Security analysis
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