Advanced Evasion Tradecraft Precision Module Stomping

[carlospolop]

🤖 Automated Content Update

This PR was automatically generated by the HackTricks News Bot based on a technical blog post.

📝 Source Information

• Blog URL: https://medium.com/@toneillcodes/advanced-evasion-tradecraft-precision-module-stomping-b51feb0978fe
• Blog Title: Advanced Evasion Tradecraft: Precision Module Stomping
• Suggested Section: Windows Hardening -> Antivirus (AV) Bypass / Windows Process Injection -> Module Stomping

🎯 Content Summary

Advanced Evasion Tradecraft: Precision Module Stomping

The post describes a Windows process-injection and defense-evasion technique called precision module stomping. Classic module stomping overwrites executable code inside a legitimate DLL that is already mapped into a process, usually inside its .text section, and then redirects execution to the overwritten address. The objective is to execute arbitrary shellcode from an address that appears to belong t...

🔧 Technical Details

Precision module stomping: Overwrite executable code inside the .text section of a DLL that is already loaded in the target process, then redirect execution to the overwritten address. This avoids allocating obvious private executable memory and avoids the noisier behavior of loading a new sacrificial DLL. The technique is useful when the attacker can write into the target process and can identify a loaded module whose executable section can hold the payload.

Loaded-module-aware target selection: Before stomping, enumerate the target process's loaded modules with a PID-based lister such as list-process-dlls.exe -p <PID> -n -o <file>. Use the resulting names-only file as an include list so the later DLL scan only considers modules already present in the target process. This reduces crashes caused by selecting a DLL that is not mapped in the remote process and avoids the EDR-visible event of forcing a new DL...

🤖 Agent Actions

Done.

Updated:

• src/windows-hardening/av-bypass.md

What I added:

• New Precision Module Stomping section
• Focused on the novel technical tradecraft:
  • loaded-module-aware DLL selection
  • .text sizing via Misc_VirtualSize
  • export/EAT-based stomp target selection
  • blast-radius analysis before stomping
  • opsec notes on avoiding sacrificial DLL loads
  • detection ideas for image-backed code tampering

Also updated ## References with:

• the Medium post
• the GitHub repo

I validated the diff and confirmed the file structure/footer remains intact.

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This PR was automatically created by the HackTricks Feed Bot. Please review the changes carefully before merging.

[carlospolop]

🔗 Additional Context

Original Blog Post: https://medium.com/@toneillcodes/advanced-evasion-tradecraft-precision-module-stomping-b51feb0978fe

Content Categories: Based on the analysis, this content was categorized under "Windows Hardening -> Antivirus (AV) Bypass / Windows Process Injection -> Module Stomping".

Repository Maintenance:

• MD Files Formatting: 977 files processed

Review Notes:

• This content was automatically processed and may require human review for accuracy
• Check that the placement within the repository structure is appropriate
• Verify that all technical details are correct and up-to-date
• All .md files have been checked for proper formatting (headers, includes, etc.)

Bot Version: HackTricks News Bot v1.0