CodeIntegrity - Blocked Image/Driver Load For Policy Violation — Sigma Rule

Rule metadata and linked tags

Author: Nasreddine Bencherchali (Nextron Systems). Source status: test; severity: high. Source dates: 2022-11-10 / 2023-06-07.

{
  "product": "windows",
  "service": "codeintegrity-operational"
}

Pinned original Sigma rule · Detection Rule License 1.1

Source SHA-256: 34c474cdacea8f6df506d445a5c790570565fc8051720a82d53e276a1785a326

Detection logic

Original source YAML. Source-tag agreement is not proof of complete semantic coverage. This rule has not been compiled for a SIEM backend or validated against live telemetry here.

title: CodeIntegrity - Blocked Image/Driver Load For Policy Violation
id: e4be5675-4a53-426a-8c81-a8bb2387e947
status: test
description: Detects blocked load events that did not meet the authenticode signing level requirements or violated the code integrity policy.
references:
    - https://twitter.com/wdormann/status/1590434950335320065
    - https://github.com/MicrosoftDocs/windows-itpro-docs/blob/40fe118976734578f83e5e839b9c63ae7a4af82d/windows/security/threat-protection/windows-defender-application-control/event-id-explanations.md#windows-codeintegrity-operational-log
    - https://learn.microsoft.com/en-us/windows/security/application-security/application-control/windows-defender-application-control/operations/event-id-explanations
author: Nasreddine Bencherchali (Nextron Systems)
date: 2022-11-10
modified: 2023-06-07
tags:
    - attack.persistence
    - attack.privilege-escalation
    - attack.t1543
logsource:
    product: windows
    service: codeintegrity-operational
detection:
    selection:
        EventID: 3077 # Code Integrity determined that a process (%4) attempted to load %2 that did not meet the %5 signing level requirements or violated code integrity policy (Policy ID:%XX).
    condition: selection
falsepositives:
    - Unknown
level: high

Original YAML and metadata in JSON

False positives

• Unknown

Source references

• https://twitter.com/wdormann/status/1590434950335320065
• https://github.com/MicrosoftDocs/windows-itpro-docs/blob/40fe118976734578f83e5e839b9c63ae7a4af82d/windows/security/threat-protection/windows-defender-application-control/event-id-explanations.md#windows-codeintegrity-operational-log
• https://learn.microsoft.com/en-us/windows/security/application-security/application-control/windows-defender-application-control/operations/event-id-explanations