Sigma rule: Suspicious Scheduled Task Creation Involving Temp Folder

A detection rule from the SigmaHQ repository, shown as its author published it. Dataset version ref-ce9e5cc2dbf8, updated 2022-10-09T00:00:00.000Z.

Rule

Title
Suspicious Scheduled Task Creation Involving Temp Folder
Status
test
Level
high
Author
Florian Roth (Nextron Systems)
Date
2021-03-11
Modified
2022-10-09
File
rules/windows/process_creation/proc_creation_win_schtasks_creation_temp_folder.yml
Commit
ccbb0369507f796db0b0ae6854c8a2be471b9d84

Detects the creation of scheduled tasks that involves a temporary folder and runs only once

Log source

product
windows
category
process_creation

Detection

selection:
    Image|endswith: '\schtasks.exe'
    CommandLine|contains|all:
        - ' /create '
        - ' /sc once '
        - '\Temp\'
condition: selection

False positives (as the rule lists them)

  • Administrative activity
  • Software installation

Tags

  • attack.privilege-escalation
  • attack.execution
  • attack.persistence
  • attack.t1053.005

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_schtasks_creation_temp_folder.yml

Sources and licences

  • SigmaHQ

    "Suspicious Scheduled Task Creation Involving Temp Folder" by Florian Roth (Nextron Systems) (SigmaHQ). Rule: https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules/windows/process_creation/proc_creation_win_schtasks_creation_temp_folder.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: Suspicious Scheduled Task Creation Involving Temp Folder",
entity page, dataset version ref-ce9e5cc2dbf8, updated 2022-10-09T00:00:00.000Z,
https://ransomware-tracker.com/detections/sigma/39019a4e-317f-4ce3-ae63-309a8c6b53c5 (accessed 2026-11-03).
Underlying source: SigmaHQ rule 39019a4e-317f-4ce3-ae63-309a8c6b53c5, 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.