Sigma rule: Failed Code Integrity Checks

A detection rule from the SigmaHQ repository, shown as its author published it. Dataset version ref-89114ac0dfcc, updated 2025-01-19T00:00:00.000Z.

Rule

Title
Failed Code Integrity Checks
Status
stable
Level
informational
Author
Thomas Patzke
Date
2019-12-03
Modified
2025-01-19
File
rules/windows/builtin/security/win_security_codeintegrity_check_failure.yml
Commit
ccbb0369507f796db0b0ae6854c8a2be471b9d84

Detects code integrity failures such as missing page hashes or corrupted drivers due unauthorized modification. This could be a sign of tampered binaries.

Log source

product
windows
service
security

Detection

selection:
    EventID:
        - 5038
        - 6281
filter_optional_crowdstrike:
    param1|contains:
        - '\CSFalconServiceUninstallTool_'
        - '\Program Files\CrowdStrike\'
        - '\System32\drivers\CrowdStrike\'
        - '\Windows\System32\ScriptControl64_'
filter_optional_sophos:
    param1|contains: '\Program Files\Sophos\'
condition: selection and not 1 of filter_optional_*

False positives (as the rule lists them)

  • Disk device errors

Tags

  • attack.stealth
  • attack.t1027.001

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/builtin/security/win_security_codeintegrity_check_failure.yml

Sources and licences

  • SigmaHQ

    "Failed Code Integrity Checks" by Thomas Patzke (SigmaHQ). Rule: https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules/windows/builtin/security/win_security_codeintegrity_check_failure.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: Failed Code Integrity Checks",
entity page, dataset version ref-89114ac0dfcc, updated 2025-01-19T00:00:00.000Z,
https://ransomware-tracker.com/detections/sigma/470ec5fa-7b4e-4071-b200-4c753100f49b (accessed 2026-11-03).
Underlying source: SigmaHQ rule 470ec5fa-7b4e-4071-b200-4c753100f49b, 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.