Sigma rule: Suspicious Regsvr32 Execution From Remote Share

A detection rule from the SigmaHQ repository, shown as its author published it. Dataset version ref-0c158a1e47a4, updated 2022-10-31T00:00:00.000Z.

Rule

Title
Suspicious Regsvr32 Execution From Remote Share
Status
test
Level
high
Author
Nasreddine Bencherchali (Nextron Systems)
Date
2022-10-31
File
rules/windows/process_creation/proc_creation_win_regsvr32_remote_share.yml
Commit
ccbb0369507f796db0b0ae6854c8a2be471b9d84

Detects REGSVR32.exe to execute DLL hosted on remote shares

Log source

product
windows
category
process_creation

Detection

selection_img:
    - Image|endswith: '\regsvr32.exe'
    - OriginalFileName: '\REGSVR32.EXE'
selection_cli:
    CommandLine|contains: ' \\\\'
condition: all of selection_*

False positives (as the rule lists them)

  • Unknown

Tags

  • attack.stealth
  • attack.t1218.010

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_regsvr32_remote_share.yml

Sources and licences

  • SigmaHQ

    "Suspicious Regsvr32 Execution From Remote Share" by Nasreddine Bencherchali (Nextron Systems) (SigmaHQ). Rule: https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules/windows/process_creation/proc_creation_win_regsvr32_remote_share.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: Suspicious Regsvr32 Execution From Remote Share",
entity page, dataset version ref-0c158a1e47a4, updated 2022-10-31T00:00:00.000Z,
https://ransomware-tracker.com/detections/sigma/88a87a10-384b-4ad7-8871-2f9bf9259ce5 (accessed 2026-11-03).
Underlying source: SigmaHQ rule 88a87a10-384b-4ad7-8871-2f9bf9259ce5, 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.