DotNET Assembly DLL Loaded Via Office Application

Severity: medium
Author: Antonlovesdnb
Source: upstream

Detects any assembly DLL being loaded by an Office Product

MITRE ATT&CK coverage

Tactic	Techniques
Execution	`T1204.002` User Execution: Malicious File

Event coverage

Provider	Event ID	Title
Sysmon	7	Image loaded

Stages and Predicates

Stage 1: `selection`

or:
Image|endswith: '\excel.exe'
Image|endswith: '\mspub.exe'
Image|endswith: '\onenote.exe'
Image|endswith: '\onenoteim.exe'
Image|endswith: '\outlook.exe'
Image|endswith: '\powerpnt.exe'
Image|endswith: '\winword.exe'
ImageLoaded|startswith: 'C:\Windows\assembly\'

Indicators

Each row is a field, operator, and value that the rule matches. The corpus column counts how many other rules in the catalog look for the same combination: high numbers point to widely-used, community-vetted indicators. Blank or 1 shows that the indicator is specific to this rule.