Sigma rule: Potential Windows Defender AV Bypass Via Dump64.EXE Rename

A detection rule from the SigmaHQ repository, shown as its author published it. Dataset version ref-4310efdd84f0, updated 2024-06-21T00:00:00.000Z.

Rule

Title
Potential Windows Defender AV Bypass Via Dump64.EXE Rename
Status
test
Level
high
Author
Austin Songer @austinsonger, Florian Roth (Nextron Systems), Nasreddine Bencherchali (Nextron Systems)
Date
2021-11-26
Modified
2024-06-21
File
rules/windows/process_creation/proc_creation_win_dump64_defender_av_bypass_rename.yml
Commit
ccbb0369507f796db0b0ae6854c8a2be471b9d84

Detects when a user is potentially trying to bypass the Windows Defender AV by renaming a tool to dump64.exe and placing it in the Visual Studio folder.
Currently the rule is covering only usage of procdump but other utilities can be added in order to increase coverage.

Log source

product
windows
category
process_creation

Detection

selection_dump:
    Image|startswith: ':\Program Files'
    Image|contains: '\Microsoft Visual Studio\'
    Image|endswith: '\dump64.exe'
selection_tools_procdump:
    - OriginalFileName: 'procdump'
    - CommandLine|contains:
          - ' -ma ' # Full Dump
          - ' -mp ' # Mini Plus
condition: selection_dump and 1 of selection_tools_*

False positives (as the rule lists them)

  • Unknown

Tags

  • attack.credential-access
  • attack.t1003.001

MITRE ATT&CK ids this rule names

References

Read on 2026-11-03T00:58:21.399Z under licence sigma-drl-1.1@d5f4c36a from https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules/windows/process_creation/proc_creation_win_dump64_defender_av_bypass_rename.yml

Sources and licences

  • SigmaHQ

    "Potential Windows Defender AV Bypass Via Dump64.EXE Rename" by Austin Songer @austinsonger, Florian Roth (Nextron Systems), Nasreddine Bencherchali (Nextron Systems) (SigmaHQ). Rule: https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules/windows/process_creation/proc_creation_win_dump64_defender_av_bypass_rename.yml.
    Licensed under the Detection Rule License (DRL) 1.1: https://github.com/SigmaHQ/Detection-Rule-License

    Detection Rule License (DRL) 1.1

Cite this page

Dragons Eye Ransomware Tracker, "Sigma rule: Potential Windows Defender AV Bypass Via Dump64.EXE Rename",
entity page, dataset version ref-4310efdd84f0, updated 2024-06-21T00:00:00.000Z,
https://ransomware-tracker.com/detections/sigma/129966c9-de17-4334-a123-8b58172e664d (accessed 2026-11-03).
Underlying source: SigmaHQ rule 129966c9-de17-4334-a123-8b58172e664d, commit ccbb0369507f796db0b0ae6854c8a2be471b9d84.

Pages change. The dataset version identifies the data, but no archive of old versions is kept, so this citation cannot be replayed later.