Sigma rule: Suspicious Outlook Macro Created

A detection rule from the SigmaHQ repository, shown as its author published it. Dataset version ref-d4a3dfd26dd2, updated 2023-02-08T00:00:00.000Z.

Rule

Title
Suspicious Outlook Macro Created
Status
test
Level
high
Author
Nasreddine Bencherchali (Nextron Systems)
Date
2023-02-08
File
rules/windows/file/file_event/file_event_win_office_outlook_susp_macro_creation.yml
Commit
ccbb0369507f796db0b0ae6854c8a2be471b9d84

Detects the creation of a macro file for Outlook.

Log source

product
windows
category
file_event

Detection

selection:
    TargetFilename|endswith: '\Microsoft\Outlook\VbaProject.OTM'
filter:
    Image|endswith: '\outlook.exe'
condition: selection and not filter

False positives (as the rule lists them)

  • Unlikely

Tags

  • attack.privilege-escalation
  • attack.persistence
  • attack.command-and-control
  • attack.t1137
  • attack.t1008
  • attack.t1546

MITRE ATT&CK ids this rule names

Related rules

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/file/file_event/file_event_win_office_outlook_susp_macro_creation.yml

Sources and licences

  • SigmaHQ

    "Suspicious Outlook Macro Created" by Nasreddine Bencherchali (Nextron Systems) (SigmaHQ). Rule: https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules/windows/file/file_event/file_event_win_office_outlook_susp_macro_creation.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 Outlook Macro Created",
entity page, dataset version ref-d4a3dfd26dd2, updated 2023-02-08T00:00:00.000Z,
https://ransomware-tracker.com/detections/sigma/117d3d3a-755c-4a61-b23e-9171146d094c (accessed 2026-11-03).
Underlying source: SigmaHQ rule 117d3d3a-755c-4a61-b23e-9171146d094c, 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.