Individual skill
extracting-config-from-agent-tesla-rat
Extracts embedded configuration from Agent Tesla RAT samples, including SMTP/FTP/Telegram exfiltration credentials, keylogger settings, and C2 endpoints, via .NET decompilation and memory analysis. Use when analyzing a suspected or confirmed Agent Tesla sample and you need to recover its exfiltration channel and C2 configuration for threat intelligence or incident response.
skills/extracting-config-from-agent-tesla-rat/SKILL.md
Source commit 54a798831d2266a3ca61ce68a7acb80b81160d57
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- Observed behavior
- Network or broad shell
- Last checked
- Nov 9, 2026
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Repository context
- Repository stars (not skill ratings)
- 35,926
- Repository last updated
- Aug 31, 2026
- License
- Apache-2.0
Observed agent integration: No specific integration evidence. Standard SKILL.md installation does not imply verified compatibility.
- ai-agents Repository topic
- claude-code Repository topic
- cybersecurity Repository topic
- incident-response Repository topic
- mitre-attack Repository topic
- penetration-testing Repository topic
- red-team Repository topic
- security Repository topic
- cloud-security Repository topic
- malware-analysis Repository topic
- agent-tesla Declared skill tag
- rat Declared skill tag
- config-extraction Declared skill tag
- dotnet Declared skill tag
- malware-analysis Declared skill tag
- keylogger Declared skill tag
- credential-theft Declared skill tag
- security Derived category
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LICENSEasset · 11,255 bytesSKILL.mdcore · 7,253 bytesSKILL.mdcore · 7,253 bytesassets/template.mddoc · 419 bytesreferences/api-reference.mddoc · 2,295 bytesreferences/standards.mddoc · 307 bytesreferences/workflows.mddoc · 466 bytesscripts/agent.pyruns · 5,640 bytes
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# Extracting Config from Agent Tesla RAT
## Overview
Agent Tesla is a .NET-based Remote Access Trojan (RAT) and keylogger that ranked among the top 10 malware variants in 2024, impacting 6.3% of corporate networks globally. It exfiltrates stolen credentials via SMTP email, FTP upload, Telegram bot API, or Discord webhooks. The malware configuration is embedded in the .NET assembly, typically obfuscated using string encryption, resource encryption, or custom loaders that decrypt and execute Agent Tesla in memory via .NET Reflection (fileless). Configuration extraction involves decompiling the .NET assembly with dnSpy or ILSpy, identifying the decryption routine for configuration strings, and extracting SMTP server addresses, credentials, FTP endpoints, Telegram bot tokens, and targeted applications.
## When to Use
- When performing authorized security testing that involves extracting config from agent tesla rat
- When analyzing malware samples or attack artifacts in a controlled environment
- When conducting red team exercises or penetration testing engagements
- When building detection capabilities based on offensive technique understanding
## Prerequisites