Detectionmediumtest
AddinUtil.EXE Execution From Uncommon Directory
Detects execution of the Add-In deployment cache updating utility (AddInutil.exe) from a non-standard directory.
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Michael McKinley, Tony LatteriCreated Mon Sep 18Updated Mon Feb 246120ac2a-a34b-42c0-a9bd-1fb9f459f348windows
Log Source
WindowsProcess Creation
ProductWindows← raw: windows
CategoryProcess Creation← raw: process_creation
Events generated when a new process is spawned on the system. Covers command-line arguments, parent/child relationships, and process metadata.
Detection Logic
Detection Logic2 selectors
detection:
selection:
- Image|endswith: '\addinutil.exe'
- OriginalFileName: 'AddInUtil.exe'
filter_main_legit_location:
Image|contains:
- ':\Windows\Microsoft.NET\Framework\'
- ':\Windows\Microsoft.NET\Framework64\'
- ':\Windows\Microsoft.NET\FrameworkArm\'
- ':\Windows\Microsoft.NET\FrameworkArm64\'
- ':\Windows\WinSxS\'
condition: selection and not 1 of filter_main_*False Positives
Unknown
False positive likelihood has not been assessed. Additional context may be needed during triage.
References
MITRE ATT&CK
Tactics
Techniques
Rule Metadata
Rule ID
6120ac2a-a34b-42c0-a9bd-1fb9f459f348
Status
test
Level
medium
Type
Detection
Created
Mon Sep 18
Modified
Mon Feb 24
Author
Path
rules/windows/process_creation/proc_creation_win_addinutil_uncommon_dir_exec.yml
Raw Tags
attack.defense-evasionattack.t1218