Sigma rule: Sysmon Configuration Update

A detection rule from the SigmaHQ repository, shown as its author published it. Dataset version ref-719db0a96bea, updated 2026-06-29T00:00:00.000Z.

Rule

Title
Sysmon Configuration Update
Status
test
Level
medium
Author
Nasreddine Bencherchali (Nextron Systems)
Date
2023-03-09
Modified
2026-06-29
File
rules/windows/process_creation/proc_creation_win_sysinternals_sysmon_config_update.yml
Commit
ccbb0369507f796db0b0ae6854c8a2be471b9d84

Detects updates to Sysmon's configuration. Attackers might update or replace the Sysmon configuration with a bare bone one to avoid monitoring without shutting down the service completely

Log source

product
windows
category
process_creation

Detection

selection_pe:
    - Image|endswith:
          - \Sysmon64.exe
          - \Sysmon64a.exe
          - \Sysmon.exe
    - Description: 'System activity monitor'
selection_cli:
    CommandLine|contains|windash: '-c'
condition: all of selection_*

False positives (as the rule lists them)

  • Legitimate administrators might use this command to update Sysmon configuration.

Tags

  • attack.defense-impairment
  • attack.t1685

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/process_creation/proc_creation_win_sysinternals_sysmon_config_update.yml

Sources and licences

  • SigmaHQ

    "Sysmon Configuration Update" by Nasreddine Bencherchali (Nextron Systems) (SigmaHQ). Rule: https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules/windows/process_creation/proc_creation_win_sysinternals_sysmon_config_update.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: Sysmon Configuration Update",
entity page, dataset version ref-719db0a96bea, updated 2026-06-29T00:00:00.000Z,
https://ransomware-tracker.com/detections/sigma/87911521-7098-470b-a459-9a57fc80bdfd (accessed 2026-11-03).
Underlying source: SigmaHQ rule 87911521-7098-470b-a459-9a57fc80bdfd, 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.