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reverser-dotnet-malware

.NET malware analysis — dnSpy/ILSpy decompilation, de-obfuscation (ConfuserEx, .NET Reactor, Babel, Crypto Obfuscator), behavioral analysis of managed assemblies, PowerShell cradle extraction, and config decryption for common .NET RAT families.

Quality

80%

Does it follow best practices?

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View guide
SecuritybySnyk

High

Do not use without reviewing

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tessl review fix ./packages/decepticon/decepticon/skills/standard/reverser/dotnet-malware/SKILL.md
SKILL.md
Quality
Evals
Security
High

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 guide instructs inserting extracted secrets (e.g., "<BASE64_PAYLOAD>", "<EXTRACTED_KEY>", "<EXTRACTED_SALT>", "<ENC_HOST>") directly into scripts and printing/decoding them, which requires the LLM/agent to handle and output secret values verbatim, creating an exfiltration risk.

Report incorrect finding
Low

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

What this means

The skill exposes the agent to untrusted, user-generated content from public third-party sources, creating a risk of indirect prompt injection. This includes browsing arbitrary URLs, reading social media posts or forum comments, and analyzing content from unknown websites.

Why it was flagged

High chance: the runtime workflow ingests the analyzed malware binary’s extracted strings/decompiled source/resources (outsider-authored sample text may include attacker-controlled “prompt injection” strings), and that prose is then printed/processed into outputs that would be added to the agent’s LLM context (e.g., via grep/strings dumps, Base64-decoded PowerShell, and resource/config plaintext).

Repository

PurpleAILAB/Decepticon

Path

packages/decepticon/decepticon/skills/standard/reverser/dotnet-malware/SKILL.md

Audited
Security analysis
Snyk

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If you maintain this skill, you can claim it as your own. Once claimed, you can manage eval scenarios, bundle related skills, attach documentation or rules, and ensure cross-agent compatibility.