T1137.006: Add-ins
Essential information
- MITRE technique ID
T1137.006- Confidence
- 100/100
- Revoked
- No
- Published
- 16/12/2025 19:37
- Modified
- 27/03/2026 01:09
- Author / Source
- The MITRE Corporation
Aliases
T1137.006
Platforms
windows Office Suite
Description
Adversaries may abuse Microsoft Office add-ins to obtain persistence on a compromised system. Office add-ins can be used to add functionality to Office programs. (Citation: Microsoft Office Add-ins) There are different types of add-ins that can be used by the various Office products; including Word/Excel add-in Libraries (WLL/XLL), VBA add-ins, Office Component Object Model (COM) add-ins, automation add-ins, VBA Editor (VBE), Visual Studio Tools for Office (VSTO) add-ins, and Outlook add-ins. (Citation: MRWLabs Office Persistence Add-ins)(Citation: FireEye Mail CDS 2018)
Add-ins can be used to obtain persistence because they can be set to execute code when an Office application starts.
Kill chain phases
| Kill chain | Phase |
|---|---|
| mitre-attack | persistence |
Marking (TLP)
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