Sigma rule: Suspicious Execution From Outlook Temporary Folder

A detection rule from the SigmaHQ repository, shown as its author published it. Dataset version ref-3fdd0efc1e12, updated 2022-10-09T00:00:00.000Z.

Rule

Title
Suspicious Execution From Outlook Temporary Folder
Status
test
Level
high
Author
Florian Roth (Nextron Systems)
Date
2019-10-01
Modified
2022-10-09
File
rules/windows/process_creation/proc_creation_win_office_outlook_execution_from_temp.yml
Commit
ccbb0369507f796db0b0ae6854c8a2be471b9d84

Detects a suspicious program execution in Outlook temp folder

Log source

product
windows
category
process_creation

Detection

selection:
    Image|contains: '\Temporary Internet Files\Content.Outlook\'
condition: selection

False positives (as the rule lists them)

  • Unknown

Tags

  • attack.initial-access
  • attack.t1566.001

MITRE ATT&CK ids this rule names

References

  • Internal Research

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_office_outlook_execution_from_temp.yml

Sources and licences

  • SigmaHQ

    "Suspicious Execution From Outlook Temporary Folder" by Florian Roth (Nextron Systems) (SigmaHQ). Rule: https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules/windows/process_creation/proc_creation_win_office_outlook_execution_from_temp.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 Execution From Outlook Temporary Folder",
entity page, dataset version ref-3fdd0efc1e12, updated 2022-10-09T00:00:00.000Z,
https://ransomware-tracker.com/detections/sigma/a018fdc3-46a3-44e5-9afb-2cd4af1d4b39 (accessed 2026-11-03).
Underlying source: SigmaHQ rule a018fdc3-46a3-44e5-9afb-2cd4af1d4b39, 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.