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Cobalt Strike Malleable C2 Analyzer

Parses Cobalt Strike malleable C2 profiles to extract network indicators and draft detection signatures.

Source Download skill
Repository
mukul975/Anthropic-Cybersecurity-Skills
Stars
35,430
Licence
Apache-2.0
Files
3 files

What it does

This skill teaches an AI agent how to read Cobalt Strike Malleable C2 profiles, which are configuration scripts that tell a Cobalt Strike implant how to disguise its command-and-control traffic as ordinary web services. Once installed, the agent can pull out URIs, HTTP headers, user agents, sleep and jitter timing, DNS settings, and process injection details, then turn them into a structured report with suggested Suricata or Snort network detection rules. It is aimed at defenders and researchers investigating captured profiles or Beacon traffic.

Great for

  • SOC analysts reverse-engineering a captured Cobalt Strike malleable profile
  • Threat hunters writing network detections for Beacon traffic
  • Security researchers comparing profiles against known threat actor collections

Skip it if

  • Attacking systems or building operational C2 infrastructure, since the skill is framed for defensive analysis and offers no attack capability beyond understanding profiles
  • Analysts who need a fully verified detection product, because generated signatures still need testing against PCAPs before deployment
  • Non-security users, because the output assumes familiarity with HTTP, Beacon behaviour and IDS rules

Try asking

  • “Parse this malleable C2 profile and list the URIs, headers and user agents it uses”
  • “Extract the sleep time, jitter and process injection settings from this profile”
  • “Generate Suricata rules from the network indicators in this Beacon profile”
  • “Compare this profile against known threat actor profiles and summarise the differences”
Step-by-step guide: how to use Cobalt Strike Malleable C2 AnalyzerInstall, first run, examples, tips and FAQs

Install in 3 steps

  1. 1

    Download the skill

    The ZIP contains the 3 original files, the Apache-2.0 licence and an attribution note.

    analyzing-cobaltstrike-malleable-c2-profiles.zip
  2. 2

    Add it to your agent

    Claude Code (all projects)

    mkdir -p ~/.claude/skills && unzip analyzing-cobaltstrike-malleable-c2-profiles.zip -d ~/.claude/skills/

    Claude Code / Agent SDK (this project only)

    mkdir -p .claude/skills && unzip analyzing-cobaltstrike-malleable-c2-profiles.zip -d .claude/skills/

    Claude apps (web/desktop): Settings → Capabilities → Skills → Upload skill, and choose the ZIP.

  3. 3

    Ask for the task

    No special command needed — the agent reads the skill's description and loads it when your request matches. Try one of the prompts above.

Get better results

  • Test any generated Suricata or Snort rules against PCAPs from a lab before deploying them to production monitoring
  • Run scripts/agent.py only on profile files you have obtained for analysis, and review the script first since it executes Python on your machine
  • Ask for the output as JSON if you plan to feed results into other tooling

What's inside

  • references/api-reference.md
  • scripts/agent.py
  • SKILL.md

Redistributed unmodified from mukul975/Anthropic-Cybersecurity-Skills under the Apache-2.0 licence. The assessment was drafted with AI from the skill's files on 2026-10-29. Skills can instruct your agent to run code — read SKILL.md and any scripts before installing.