Detectionmediumtest
Suspicious Execution of InstallUtil Without Log
Uses the .NET InstallUtil.exe application in order to execute image without log
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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 Logic1 selector
detection:
selection:
Image|endswith: '\InstallUtil.exe'
Image|contains: 'Microsoft.NET\Framework'
CommandLine|contains|all:
- '/logfile= '
- '/LogToConsole=false'
condition: selectionFalse Positives
Unknown
False positive likelihood has not been assessed. Additional context may be needed during triage.
MITRE ATT&CK
Tactics
Rule Metadata
Rule ID
d042284c-a296-4988-9be5-f424fadcc28c
Status
test
Level
medium
Type
Detection
Created
Sun Jan 23
Modified
Fri Feb 04
Author
Path
rules/windows/process_creation/proc_creation_win_instalutil_no_log_execution.yml
Raw Tags
attack.defense-evasion