Individual skill
reverse-engineering-dotnet-malware-with-dnspy
Reverse engineers .NET malware using dnSpy decompiler and debugger to analyze C#/VB.NET source code, identify obfuscation techniques, extract configurations, and understand malicious functionality including stealers, RATs, and loaders. Activates for requests involving .NET malware analysis, C# malware decompilation, managed code reverse engineering, or .NET obfuscation analysis.
internal/tools/skills/data/malware-analysis/reverse-engineering-dotnet-malware-with-dnspy/SKILL.md
Source commit d42f381ad34843e71a42658e5c57290c713e85af
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- Matches the observed repository HEAD
- Yes
- Scanner rules are current
- Yes
- Repository scan complete
- No
- Skill scan complete
- No
- Observed behavior
- Instructions only
- Last checked
- Nov 9, 2026
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Repository context
- Repository stars (not skill ratings)
- 1,313
- Repository last updated
- Nov 8, 2026
- License
- Apache-2.0
Observed agent integration: No specific integration evidence. Standard SKILL.md installation does not imply verified compatibility.
- cybersecurity Repository topic
- security Repository topic
- bug-bounty Repository topic
- automation Repository topic
- autonomous-pentesting Repository topic
- ai-agent Repository topic
- ai-security Repository topic
- ethical-hacking Repository topic
- golang Repository topic
- penetration-testing Repository topic
- malware Declared skill tag
- dotnet Declared skill tag
- reverse-engineering Declared skill tag
- dnspy Declared skill tag
- decompilation Declared skill tag
- engineering Derived category
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# Reverse Engineering .NET Malware with dnSpy
## When to Use
- A malware sample is identified as a .NET assembly (C#, VB.NET, F#) requiring decompilation
- Analyzing .NET-based malware families (AgentTesla, AsyncRAT, RedLine Stealer, Quasar RAT)
- Deobfuscating .NET code protected by ConfuserEx, SmartAssembly, or custom obfuscators
- Extracting hardcoded C2 configurations, encryption keys, and credentials from managed assemblies
- Debugging .NET malware at runtime to observe decryption routines and dynamic behavior
**Do not use** for native (unmanaged) PE binaries; use Ghidra or IDA for native code analysis.
## Detection Gaps & Validation
