Sigma rule: PUA - Wsudo Suspicious Execution

A detection rule from the SigmaHQ repository, shown as its author published it. Dataset version ref-7950646fdf9d, updated 2023-02-14T00:00:00.000Z.

Rule

Title
PUA - Wsudo Suspicious Execution
Status
test
Level
high
Author
Nasreddine Bencherchali (Nextron Systems)
Date
2022-12-02
Modified
2023-02-14
File
rules/windows/process_creation/proc_creation_win_pua_wsudo_susp_execution.yml
Commit
ccbb0369507f796db0b0ae6854c8a2be471b9d84

Detects usage of wsudo (Windows Sudo Utility). Which is a tool that let the user execute programs with different permissions (System, Trusted Installer, Administrator...etc)

Log source

product
windows
category
process_creation

Detection

selection_metadata:
    - Image|endswith: '\wsudo.exe'
    - OriginalFileName: 'wsudo.exe'
    - Description: 'Windows sudo utility'
    - ParentImage|endswith: '\wsudo-bridge.exe'
selection_cli:
    CommandLine|contains:
        - '-u System'
        - '-uSystem'
        - '-u TrustedInstaller'
        - '-uTrustedInstaller'
        - ' --ti '
condition: 1 of selection_*

False positives (as the rule lists them)

  • Unknown

Tags

  • attack.execution
  • attack.privilege-escalation
  • attack.t1059

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_pua_wsudo_susp_execution.yml

Sources and licences

  • SigmaHQ

    "PUA - Wsudo Suspicious Execution" by Nasreddine Bencherchali (Nextron Systems) (SigmaHQ). Rule: https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules/windows/process_creation/proc_creation_win_pua_wsudo_susp_execution.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: PUA - Wsudo Suspicious Execution",
entity page, dataset version ref-7950646fdf9d, updated 2023-02-14T00:00:00.000Z,
https://ransomware-tracker.com/detections/sigma/bdeeabc9-ff2a-4a51-be59-bb253aac7891 (accessed 2026-11-03).
Underlying source: SigmaHQ rule bdeeabc9-ff2a-4a51-be59-bb253aac7891, 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.