Research Update Enhanced src/windows-hardening/lateral-movem...

[carlospolop]

🤖 Automated Content Update

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

📝 Source Information

• Blog URL:
• Blog Title: Research Update Enhanced src/windows-hardening/lateral-movement/dcomexec.md
• Suggested Section: Research

🎯 Content Summary

Research Update for src/windows-hardening/lateral-movement/dcomexec.md

This PR contains automated research updates including:

• Latest security vulnerabilities and attack vectors
• Updated techniques and tools
• Enhanced explanations and examples
• Additional references and resources

Generated by: HackTricks Research Agent
Timestamp: 2026-04-23 03:31:37 UTC

Tool usage

• apply_patch: 1
• brave_search: 6
• exec: 24
• search_google_web: 10
• task_steps_manager: 7

This update...

🔧 Technical Details

Research update for HackTricks content

🤖 Agent Actions

I’m reviewing the DCOM execution page, checking related HackTricks content to avoid duplication, and then I’ll cross-check recent research and tooling changes before patching the exact file.
I have the current DCOM page. Next I’m checking adjacent lateral-movement pages to keep this page focused on DCOM-specific execution rather than re-explaining generic remote exec tradecraft.
The nearby pages don’t cover DCOM-specific prerequisites or object-selection nuances, so I can safely add those here. I’m moving into external research now: recent DCOM changes from Microsoft, current Impacket behavior, and newer operator notes around object abuse and OPSEC.
The useful updates are narrowing down: current Impacket object support, Microsoft’s post-March-2023 DCOM enforcement, network/prereq specifics, and one genuinely newer DCOM tradecraft angle around Windows Installer rather than repeating the older MMC/Shell objects.
I have enough to patch now. The changes will stay narrow: current prerequisites and version caveats, corrected practical examples, and one modern Excel-based DCOM technique that materially extends the page without turning it into a generic COM catalog.
I’m patching the page now. The edits are surgical: no broad restructure, just stronger prerequisites, corrected examples, updated tooling notes, and one modern Excel DCOM primitive that fits this page.
The patch is in place and I’ve checked the rendered structure at the source level. I’m doing one final verification pass on the exact file and diff, then I’ll close with the summary plus the research URLs used.
Updated dcomexec.md. I added a DCOM-specific prerequisites section, documented the post-March-14-2023 hardening caveat, clarified RPC/SMB requirements for dcomexec.py, corrected the practical MMC20.Application execution example, added a direct ShellBrowserWindow example, and expanded the Excel section with the newer ActivateMicrosoftApp() PATH-search abuse described by SpecterOps. I also refreshed the Impacket usage examples with explicit object selection and -nooutput, and kept the references section at the end with two new relevant references.

Verification was limited to source review and git diff on the modified file.

Research URLs used:

• https://enigma0x3.net/2017/01/05/lateral-movement-using-the-mmc20-application-com-object/
• https://enigma0x3.net/2017/01/23/lateral-movement-via-dcom-round-2/
• https://support.microsoft.com/en-us/topic/kb5004442-manage-changes-for-windows-dcom-server-security-feature-bypass-cve-2021-26414-f1400b52-c141-43d2-941e-37ed901c769c
• https://learn.microsoft.com/en-us/troubleshoot/windows-server/networking/configure-rpc-dynamic-port-allocation-with-firewalls
• https://github.com/fortra/impacket/blob/master/examples/dcomexec.py
• https://wadcoms.github.io/wadcoms/Impacket-DCOMExec/
• https://www.elastic.co/docs/reference/security/prebuilt-rules/rules/windows/lateral_movement_dcom_shellwindow_shellbrowserwindow
• https://www.elastic.co/guide/en/security/current/incoming-dcom-lateral-movement-with-mmc.html
• https://specterops.io/blog/2023/10/30/lateral-movement-abuse-the-power-of-dcom-excel-application/
• https://www.deepinstinct.com/blog/forget-psexec-dcom-upload-execute-backdoor
• https://www.cybereason.com/blog/leveraging-excel-dde-for-lateral-movement-via-dcom

---

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

[carlospolop]

🔗 Additional Context

Original Blog Post:

Content Categories: Based on the analysis, this content was categorized under "Research".

Repository Maintenance:

• MD Files Formatting: 972 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