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Time Travel Debugging for .NET Process Hollowing Analysis

🕒 This post introduces Time Travel Debugging (TTD) via WinDbg as a high-value tool for accelerating analysis of obfuscated, multi-stage .NET droppers that perform process hollowing. The authors demonstrate recording a TTD trace, querying the Debugger Data Model with LINQ to find CreateProcess and WriteProcessMemory calls, and extracting a hidden AgentTesla payload. It highlights practical tips, tooling (TTD.exe, FLARE-VM), and limitations such as user-mode scope and proprietary trace formats.