ad-certipy-esc-chain
ADCS abuse via Certipy — find vulnerable templates (ESC1-ESC15), request a certificate, authenticate as the target, dump the krbtgt. Full chain in 4 commands. Covers ESC1 (any SAN), ESC2 (any-purpose EKU), ESC3 (enrollment-agent), ESC4 (vulnerable ACL), ESC8 (NTLM relay to CA), ESC9/10/11/13.
64
77%
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Critical
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tessl review fix ./packages/decepticon/decepticon/skills/standard/ad/certipy-esc-chain/SKILL.mdSecurity
4 findings: 2 critical severity, 1 high severity, 1 medium severity. Installing this skill is not recommended: please review these findings carefully if you do intend to do so.
E005: Suspicious download URL detected in skill instructions.
What this means
Detected a suspicious URL in the skill instructions that could lead the agent to download and execute malicious scripts or binaries. This includes links to executables from untrusted sources, typosquatting of official packages, URL shorteners that obscure the destination, and personal file hosting services.
Why it was flagged
This is an internal AD CS web-enrollment endpoint (/certsrv/certfnsh.asp) commonly abused (e.g., via NTLM relay) to obtain certificates and perform domain compromise, so it is a high-risk URL for abuse even though it is not a direct malware download.
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
This document is explicit offensive guidance describing ADCS/Certipy exploitation chains (requesting high‑privilege certs, obtaining PFX/TGT, pass‑the‑hash, DCSync) and OPSEC evasion—intended to enable full domain compromise and credential theft.
W007: Insecure credential handling detected in skill instructions.
What this means
The skill handles credentials insecurely by requiring the agent to include secret values verbatim in its generated output. This exposes credentials in the agent’s context and conversation history, creating a risk of data exfiltration.
Why it was flagged
The skill contains commands that embed plaintext passwords and NT hashes (e.g., -p 'pass', :<NT_HASH>) and instruct copying/using PFX/base64 certificate material, which forces the agent to accept and output secret values verbatim.
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 contains explicit commands that request sudo, run privileged network-relay tooling, modify AD certificate templates and user attributes (UPNs), and perform credential/theft actions that change system and domain state and enable full compromise.
- Repository
- PurpleAILAB/Decepticon
- Commit
e34afba
- Audited
- Security analysis
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