Sigma rule: Potential Persistence Via Excel Add-in - Registry

A detection rule from the SigmaHQ repository, shown as its author published it. Dataset version ref-3b9c7349aae4, updated 2023-08-17T00:00:00.000Z.

Rule

Title: Potential Persistence Via Excel Add-in - Registry
Status: test
Level: high
Author: frack113
Date: 2023-01-15
Modified: 2023-08-17
File: rules/windows/registry/registry_set/registry_set_persistence_xll.yml
Commit: ccbb0369507f796db0b0ae6854c8a2be471b9d84

Detect potential persistence via the creation of an excel add-in (XLL) file to make it run automatically when Excel is started.

Log source

product: windows
category: registry_set

Detection

selection:
    TargetObject|contains: 'Software\Microsoft\Office\'
    TargetObject|endswith: '\Excel\Options'
    Details|startswith: '/R '
    Details|endswith: '.xll'
condition: selection

False positives (as the rule lists them)

Unknown

MITRE ATT&CK ids this rule names

T1137.006

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/registry/registry_set/registry_set_persistence_xll.yml

Sources and licences

SigmaHQ
"Potential Persistence Via Excel Add-in - Registry" by frack113 (SigmaHQ). Rule: https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules/windows/registry/registry_set/registry_set_persistence_xll.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: Potential Persistence Via Excel Add-in - Registry",
entity page, dataset version ref-3b9c7349aae4, updated 2023-08-17T00:00:00.000Z,
https://ransomware-tracker.com/detections/sigma/961e33d1-4f86-4fcf-80ab-930a708b2f82 (accessed 2026-11-03).
Underlying source: SigmaHQ rule 961e33d1-4f86-4fcf-80ab-930a708b2f82, 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.