Sigma rule: CodeIntegrity - Unsigned Image Loaded

A detection rule from the SigmaHQ repository, shown as its author published it. Dataset version ref-b1e9f142aed3, updated 2023-06-06T00:00:00.000Z.

Rule

Title
CodeIntegrity - Unsigned Image Loaded
Status
test
Level
high
Author
Nasreddine Bencherchali (Nextron Systems)
Date
2023-06-06
File
rules/windows/builtin/code_integrity/win_codeintegrity_unsigned_image_loaded.yml
Commit
ccbb0369507f796db0b0ae6854c8a2be471b9d84

Detects loaded unsigned image on the system

Log source

product
windows
service
codeintegrity-operational

Detection

selection:
    EventID: 3037 # Code Integrity determined an unsigned image %2 is loaded into the system. Check with the publisher to see if a signed version of the image is available.
condition: selection

False positives (as the rule lists them)

  • Unlikely

Tags

  • attack.privilege-escalation

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/builtin/code_integrity/win_codeintegrity_unsigned_image_loaded.yml

Sources and licences

  • SigmaHQ

    "CodeIntegrity - Unsigned Image Loaded" by Nasreddine Bencherchali (Nextron Systems) (SigmaHQ). Rule: https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules/windows/builtin/code_integrity/win_codeintegrity_unsigned_image_loaded.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: CodeIntegrity - Unsigned Image Loaded",
entity page, dataset version ref-b1e9f142aed3, updated 2023-06-06T00:00:00.000Z,
https://ransomware-tracker.com/detections/sigma/c92c24e7-f595-493f-9c98-53d5142f5c18 (accessed 2026-11-03).
Underlying source: SigmaHQ rule c92c24e7-f595-493f-9c98-53d5142f5c18, 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.