Sigma rule: Suspicious File Download Using Office Application

A detection rule from the SigmaHQ repository, shown as its author published it. Dataset version ref-da4113b1e593, updated 2023-02-04T00:00:00.000Z.

Rule

Title
Suspicious File Download Using Office Application
Status
test
Level
high
Author
Beyu Denis, oscd.community
Date
2019/10/26
Modified
2023/02/04
File
deprecated/windows/proc_creation_win_lolbin_office.yml
Commit
ccbb0369507f796db0b0ae6854c8a2be471b9d84

Detects the usage of one of three Microsoft office applications (Word, Excel, PowerPoint) to download arbitrary files

Log source

product
windows
category
process_creation

Detection

selection:
    Image|endswith:
        - '\powerpnt.exe'
        - '\winword.exe'
        - '\excel.exe'
    CommandLine|contains: 'http'
condition: selection

False positives (as the rule lists them)

  • Unknown

Tags

  • attack.command_and_control
  • attack.t1105

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/deprecated/windows/proc_creation_win_lolbin_office.yml

Sources and licences

  • SigmaHQ

    "Suspicious File Download Using Office Application" by Beyu Denis, oscd.community (SigmaHQ). Rule: https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/deprecated/windows/proc_creation_win_lolbin_office.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 File Download Using Office Application",
entity page, dataset version ref-da4113b1e593, updated 2023-02-04T00:00:00.000Z,
https://ransomware-tracker.com/detections/sigma/0c79148b-118e-472b-bdb7-9b57b444cc19 (accessed 2026-11-03).
Underlying source: SigmaHQ rule 0c79148b-118e-472b-bdb7-9b57b444cc19, 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.