Sigma rule: Potential Persistence Via Logon Scripts - Registry

A detection rule from the SigmaHQ repository, shown as its author published it. Dataset version ref-67d4e48b144d, updated 2025-10-26T00:00:00.000Z.

Rule

Title
Potential Persistence Via Logon Scripts - Registry
Status
test
Level
medium
Author
Tom Ueltschi (@c_APT_ure)
Date
2019-01-12
Modified
2025-10-26
File
rules/windows/registry/registry_set/registry_set_persistence_logon_scripts_userinitmprlogonscript.yml
Commit
ccbb0369507f796db0b0ae6854c8a2be471b9d84

Detects creation of "UserInitMprLogonScript" registry value which can be used as a persistence method by malicious actors

Log source

product
windows
category
registry_set

Detection

selection:
    TargetObject|contains: 'UserInitMprLogonScript'
condition: selection

False positives (as the rule lists them)

  • Investigate the contents of the "UserInitMprLogonScript" value to determine of the added script is legitimate

Tags

  • attack.privilege-escalation
  • attack.t1037.001
  • attack.persistence
  • attack.lateral-movement

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/registry/registry_set/registry_set_persistence_logon_scripts_userinitmprlogonscript.yml

Sources and licences

  • SigmaHQ

    "Potential Persistence Via Logon Scripts - Registry" by Tom Ueltschi (@c_APT_ure) (SigmaHQ). Rule: https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules/windows/registry/registry_set/registry_set_persistence_logon_scripts_userinitmprlogonscript.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: Potential Persistence Via Logon Scripts - Registry",
entity page, dataset version ref-67d4e48b144d, updated 2025-10-26T00:00:00.000Z,
https://ransomware-tracker.com/detections/sigma/9ace0707-b560-49b8-b6ca-5148b42f39fb (accessed 2026-11-03).
Underlying source: SigmaHQ rule 9ace0707-b560-49b8-b6ca-5148b42f39fb, 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.