analyzing-cobaltstrike-malleable-c2-profiles

Q: How do I install analyzing-cobaltstrike-malleable-c2-profiles?

Run npx skills add https://github.com/mukul975/anthropic-cybersecurity-skills --skill analyzing-cobaltstrike-malleable-c2-profiles in your project. The skills CLI detects the agents you use and copies the skill into the right folder. For Claude Code you can also place the skill folder at ~/.claude/skills/analyzing-cobaltstrike-malleable-c2-profiles/ (personal) or .claude/skills/analyzing-cobaltstrike-malleable-c2-profiles/ (project).

by mukul975AI & Agents

Parse and analyze Cobalt Strike Malleable C2 profiles with dissect.cobaltstrike (profiles and beacon-payload configs) and pyMalleableC2 (AST parsing) to extract HTTP/DNS transforms, URIs, headers, sleep/jitter, and injection behavior, then generate network detection signatures. Use when reverse-engineering a captured malleable profile or building detections against Cobalt Strike Beacon traffic.

Installs: 426
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Security: Not audited

Install

Works with every agent the skills CLI supports.

npx skills add https://github.com/mukul975/anthropic-cybersecurity-skills --skill analyzing-cobaltstrike-malleable-c2-profiles

01
Install
Run the command in your project. The CLI asks which agents to install for.
02
Describe the task
Ask your agent for something this skill covers. It loads analyzing-cobaltstrike-malleable-c2-profiles automatically when relevant.
03
Review the result
The agent follows the SKILL.md steps, scripts and references bundled with the skill.

SKILL.md

The instructions your agent reads when the skill is triggered.

Analyzing CobaltStrike Malleable C2 Profiles

Overview

Cobalt Strike Malleable C2 profiles are domain-specific language scripts that customize how Beacon communicates with the team server, defining HTTP request/response transformations, sleep intervals, jitter values, user agents, URI paths, and process injection behavior. Threat actors use malleable profiles to disguise C2 traffic as legitimate services (Amazon, Google, Slack). Analyzing these profiles reveals network indicators for detection: URI patterns, HTTP headers, POST/GET transforms, DNS settings, and process injection techniques. The dissect.cobaltstrike library can parse both profile files and extract configurations from beacon payloads, while pyMalleableC2 provides AST-based parsing using Lark grammar for programmatic profile manipulation and validation.

When to Use

When investigating security incidents that require analyzing cobaltstrike malleable c2 profiles
When building detection rules or threat hunting queries for this domain
When SOC analysts need structured procedures for this analysis type
When validating security monitoring coverage for related attack techniques

Prerequisites

Python 3.9+ with dissect.cobaltstrike and/or pyMalleableC2
Sample Malleable C2 profiles (available from public repositories)
Understanding of HTTP protocol and Cobalt Strike beacon communication model
Network monitoring tools (Suricata/Snort) for signature deployment
PCAP analysis tools for traffic validation

Steps

Install libraries: pip install dissect.cobaltstrike or pip install pyMalleableC2
Parse profile with C2Profile.from_path("profile.profile")
Extract HTTP GET/POST block configurations (URIs, headers, parameters)
Identify user agent strings and spoof targets
Extract sleep time, jitter percentage, and DNS beacon settings
Analyze process injection settings (spawn-to, allocation technique)
Generate Suricata/Snort signatures from extracted network indicators
Compare profile against known threat actor profile collections
Extract staging URIs and payload delivery mechanisms
Produce detection report with IOCs and recommended network signatures

Expected Output

A JSON report containing extracted C2 URIs, HTTP headers, user agents, sleep/jitter settings, process injection config, spawned process paths, DNS settings, and generated Suricata-compatible detection rules.

FAQ

What does the analyzing-cobaltstrike-malleable-c2-profiles skill do?

How do I install analyzing-cobaltstrike-malleable-c2-profiles?

Run npx skills add https://github.com/mukul975/anthropic-cybersecurity-skills --skill analyzing-cobaltstrike-malleable-c2-profiles in your project. The skills CLI detects the agents you use and copies the skill into the right folder. For Claude Code you can also place the skill folder at ~/.claude/skills/analyzing-cobaltstrike-malleable-c2-profiles/ (personal) or .claude/skills/analyzing-cobaltstrike-malleable-c2-profiles/ (project).

Which AI agents can use analyzing-cobaltstrike-malleable-c2-profiles?

Any agent that supports the open Agent Skills format (a folder with a SKILL.md file), including Claude Code, Codex, Cursor, GitHub Copilot, Gemini CLI, Windsurf, Cline, OpenCode and more.

Is analyzing-cobaltstrike-malleable-c2-profiles safe to install?

No partner security audit is available yet. Skills can run commands and scripts, so read the SKILL.md and any bundled files before installing.

Who maintains analyzing-cobaltstrike-malleable-c2-profiles?

It is published by mukul975 in mukul975/anthropic-cybersecurity-skills. It has 426 recorded installs.