dcsync
Abuse replication rights (DS-Replication-Get-Changes + GetChangesAll) to dump krbtgt and arbitrary user NT hashes from a DC.
64
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Critical
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tessl review fix ./packages/decepticon/decepticon/skills/standard/ad/dcsync/SKILL.mdSecurity
3 findings: 1 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.
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 an explicit offensive playbook describing DCSync-based credential theft, exfiltration of NT hashes/Kerberos keys, and creation of Golden Tickets for persistent domain compromise and lateral movement.
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 instructs embedding plaintext credentials and NT hashes directly into command lines and data fields (e.g., secretsdump 'DOM/USER:PASS@DC_IP', -hashes :NT_HASH, ticketer.py -nthash KRBTGT_NT, and kg_add_node with "value":"<hash>"), which requires the LLM to handle/output secret values verbatim, creating an exfiltration risk.
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
This skill explicitly instructs running credential-extraction and post-exploitation tools (secretsdump, Mimikatz, ticketer, psexec) that write sensitive files (e.g., /tmp/secrets, Administrator.ccache) and perform remote/privileged modifications, directly enabling compromise of the host or network state.
- Repository
- PurpleAILAB/Decepticon
- Commit
e34afba
- Audited
- Security analysis
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