analyzing-cobalt-strike-beacon-configuration
Extract and analyze Cobalt Strike beacon configuration from PE files and memory dumps to identify C2 infrastructure, malleable profiles, and operator tradecraft.
72
66%
Does it follow best practices?
Impact
Pending
No eval scenarios have been run
Critical
Do not install without reviewing
Optimize this skill with Tessl
npx tessl skill review --optimize ./skills/analyzing-cobalt-strike-beacon-configuration/SKILL.mdSecurity
2 findings — 1 critical severity, 1 high 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
Malicious code pattern detected (high risk: 1.00). The content explicitly targets Cobalt Strike beacons—providing XOR deobfuscation keys, TLV parsing, extraction of C2 domains/URIs, spawn-to/named-pipe details, and malleable C2 profile analysis—i.e., it documents and automates discovery and manipulation of a backdoor/C2 infrastructure and contains obfuscation/decoding techniques commonly used for malicious persistence and data-exfiltration channels.
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
Insecure credential handling detected (high risk: 0.90). The prompt's code and instructions explicitly extract and print beacon configuration fields (e.g., SETTING_PUBKEY, C2 domains/URIs, watermarks, encryption-related values) verbatim, which requires the agent to handle and output secret/encryption values directly, creating an exfiltration risk.
- Repository
- mukul975/Anthropic-Cybersecurity-Skills
- Commit
c15f73d
- Audited
- Security analysis
Is this your skill?
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