Sigma rule: Service Installed By Unusual Client - System

A detection rule from the SigmaHQ repository, shown as its author published it. Dataset version ref-ffc5ed459c84, updated 2023-01-04T00:00:00.000Z.

Rule

Title
Service Installed By Unusual Client - System
Status
test
Level
high
Author
Tim Rauch (Nextron Systems), Elastic (idea)
Date
2022-09-15
Modified
2023-01-04
File
rules/windows/builtin/system/service_control_manager/win_system_service_install_sups_unusal_client.yml
Commit
ccbb0369507f796db0b0ae6854c8a2be471b9d84

Detects a service installed by a client which has PID 0 or whose parent has PID 0

Log source

product
windows
service
system

Detection

selection:
    Provider_Name: 'Service Control Manager'
    EventID: 7045
    ProcessId: 0
condition: selection

False positives (as the rule lists them)

  • Unknown

Tags

  • attack.persistence
  • attack.privilege-escalation
  • attack.t1543

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/builtin/system/service_control_manager/win_system_service_install_sups_unusal_client.yml

Sources and licences

  • SigmaHQ

    "Service Installed By Unusual Client - System" by Tim Rauch (Nextron Systems), Elastic (idea) (SigmaHQ). Rule: https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules/windows/builtin/system/service_control_manager/win_system_service_install_sups_unusal_client.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: Service Installed By Unusual Client - System",
entity page, dataset version ref-ffc5ed459c84, updated 2023-01-04T00:00:00.000Z,
https://ransomware-tracker.com/detections/sigma/71c276aa-49cd-43d2-b920-2dcd3e6962d5 (accessed 2026-11-03).
Underlying source: SigmaHQ rule 71c276aa-49cd-43d2-b920-2dcd3e6962d5, 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.