Detectionhightest
Potential MsiExec Masquerading
Detects the execution of msiexec.exe from an uncommon directory
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Florian Roth (Nextron Systems)Created Thu Nov 14Updated Tue Feb 21e22a6eb2-f8a5-44b5-8b44-a2dbd47b1144windows
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: '\msiexec.exe'
- OriginalFileName: '\msiexec.exe'
filter:
Image|startswith:
- 'C:\Windows\System32\'
- 'C:\Windows\SysWOW64\'
- 'C:\Windows\WinSxS\'
condition: selection and not filterFalse Positives
Unknown
False positive likelihood has not been assessed. Additional context may be needed during triage.
References
MITRE ATT&CK
Tactics
Sub-techniques
Rule Metadata
Rule ID
e22a6eb2-f8a5-44b5-8b44-a2dbd47b1144
Status
test
Level
high
Type
Detection
Created
Thu Nov 14
Modified
Tue Feb 21
Path
rules/windows/process_creation/proc_creation_win_msiexec_masquerading.yml
Raw Tags
attack.defense-evasionattack.t1036.005