Sigma rule: PUA - RunXCmd Execution

A detection rule from the SigmaHQ repository, shown as its author published it. Dataset version ref-ea8cea813f14, updated 2023-02-14T00:00:00.000Z.

Rule

Title
PUA - RunXCmd Execution
Status
test
Level
high
Author
Florian Roth (Nextron Systems)
Date
2022-01-24
Modified
2023-02-14
File
rules/windows/process_creation/proc_creation_win_pua_runxcmd.yml
Commit
ccbb0369507f796db0b0ae6854c8a2be471b9d84

Detects the use of the RunXCmd tool to execute commands with System or TrustedInstaller accounts

Log source

product
windows
category
process_creation

Detection

selection_account:
    CommandLine|contains:
        - ' /account=system '
        - ' /account=ti '
selection_exec:
    CommandLine|contains: '/exec='
condition: all of selection_*

False positives (as the rule lists them)

  • Legitimate use by administrators

Tags

  • attack.execution
  • attack.t1569.002
  • attack.s0029

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_runxcmd.yml

Sources and licences

  • SigmaHQ

    "PUA - RunXCmd Execution" by Florian Roth (Nextron Systems) (SigmaHQ). Rule: https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules/windows/process_creation/proc_creation_win_pua_runxcmd.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 - RunXCmd Execution",
entity page, dataset version ref-ea8cea813f14, updated 2023-02-14T00:00:00.000Z,
https://ransomware-tracker.com/detections/sigma/93199800-b52a-4dec-b762-75212c196542 (accessed 2026-11-03).
Underlying source: SigmaHQ rule 93199800-b52a-4dec-b762-75212c196542, 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.