Sigma rule: Suspicious X509Enrollment - Ps Script

A detection rule from the SigmaHQ repository, shown as its author published it. Dataset version ref-c9dc7db688b4, updated 2022-12-23T00:00:00.000Z.

Rule

Title
Suspicious X509Enrollment - Ps Script
Status
test
Level
medium
Author
frack113
Date
2022-12-23
File
rules/windows/powershell/powershell_script/posh_ps_x509enrollment.yml
Commit
ccbb0369507f796db0b0ae6854c8a2be471b9d84

Detect use of X509Enrollment

Log source

product
windows
category
ps_script
definition
Requirements: Script Block Logging must be enabled

Detection

selection:
    ScriptBlockText|contains:
        - 'X509Enrollment.CBinaryConverter'
        - '884e2002-217d-11da-b2a4-000e7bbb2b09'
condition: selection

False positives (as the rule lists them)

  • Legitimate administrative script

Tags

  • attack.defense-impairment
  • attack.t1553.004

MITRE ATT&CK ids this rule names

Related rules

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/powershell/powershell_script/posh_ps_x509enrollment.yml

Sources and licences

  • SigmaHQ

    "Suspicious X509Enrollment - Ps Script" by frack113 (SigmaHQ). Rule: https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules/windows/powershell/powershell_script/posh_ps_x509enrollment.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 X509Enrollment - Ps Script",
entity page, dataset version ref-c9dc7db688b4, updated 2022-12-23T00:00:00.000Z,
https://ransomware-tracker.com/detections/sigma/504d63cb-0dba-4d02-8531-e72981aace2c (accessed 2026-11-03).
Underlying source: SigmaHQ rule 504d63cb-0dba-4d02-8531-e72981aace2c, 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.