Detectionhightest
UAC Bypass Abusing Winsat Path Parsing - Registry
Detects the pattern of UAC Bypass using a path parsing issue in winsat.exe (UACMe 52)
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Christian Burkard (Nextron Systems)Created Mon Aug 30Updated Thu Aug 176597be7b-ac61-4ac8-bef4-d3ec88174853windows
Log Source
WindowsRegistry Set
ProductWindows← raw: windows
CategoryRegistry Set← raw: registry_set
Detection Logic
Detection Logic1 selector
detection:
selection:
TargetObject|contains: '\Root\InventoryApplicationFile\winsat.exe|'
TargetObject|endswith: '\LowerCaseLongPath'
Details|startswith: 'c:\users\'
Details|endswith: '\appdata\local\temp\system32\winsat.exe'
condition: selectionFalse Positives
Unknown
False positive likelihood has not been assessed. Additional context may be needed during triage.
References
MITRE ATT&CK
Rule Metadata
Rule ID
6597be7b-ac61-4ac8-bef4-d3ec88174853
Status
test
Level
high
Type
Detection
Created
Mon Aug 30
Modified
Thu Aug 17
Path
rules/windows/registry/registry_set/registry_set_uac_bypass_winsat.yml
Raw Tags
attack.defense-evasionattack.privilege-escalationattack.t1548.002