c2-havoc
Havoc C2 framework (C5pider/Havoc) — modern Sliver/CS alternative, Demon agent with indirect syscalls, sleep obfuscation (Ekko/Zilean/FOLIAGE), Donut PIC loader integration, profile-driven HTTP comms, MaterialUI web client. Best when you need modern OPSEC without Cobalt Strike cost.
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Critical
Do not install without reviewing
Security
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 a public GitHub repository for an offensive C2 framework that builds and distributes Windows implants/executables and includes operational build/run instructions, making it a high-risk source for malware distribution.
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 operator guide for a command-and-control framework describing implant builds, stealth techniques, remote command execution, credential-theft tooling, and lateral movement — indicating clear malicious intent and backdoor behavior.
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 includes a plaintext password literal in the example configuration (Operators user "op-alice" { Password = "strongpassword" }), which forces the LLM to handle an explicit secret value and could lead to verbatim exposure.
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 instructs building and running a C2 server on the host (git clone, make, docker compose up -d, ./havoc server), configures listeners bound to privileged ports and operator accounts, and includes commands to spawn implants and perform lateral movement — all of which modify the host state and enable malicious control.
- Repository
- PurpleAILAB/Decepticon
- Commit
e34afba
- Audited
- Security analysis
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