Detectionhightest
PowerShell SAM Copy
Detects suspicious PowerShell scripts accessing SAM hives
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Florian Roth (Nextron Systems)Created Thu Jul 29Updated Fri Jan 061af57a4b-460a-4738-9034-db68b880c665windows
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_1:
CommandLine|contains|all:
- '\HarddiskVolumeShadowCopy'
- 'System32\config\sam'
selection_2:
CommandLine|contains:
- 'Copy-Item'
- 'cp $_.'
- 'cpi $_.'
- 'copy $_.'
- '.File]::Copy('
condition: all of selection*False Positives
Some rare backup scenarios
PowerShell scripts fixing HiveNightmare / SeriousSAM ACLs
References
MITRE ATT&CK
Tactics
Sub-techniques
Rule Metadata
Rule ID
1af57a4b-460a-4738-9034-db68b880c665
Status
test
Level
high
Type
Detection
Created
Thu Jul 29
Modified
Fri Jan 06
Path
rules/windows/process_creation/proc_creation_win_powershell_sam_access.yml
Raw Tags
attack.credential-accessattack.t1003.002