Detectionmediumtest
Malicious PowerShell Keywords
Detects keywords from well-known PowerShell exploitation frameworks
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Sean Metcalf (source), Florian Roth (Nextron Systems)Created Sun Mar 05Updated Tue Jun 20f62176f3-8128-4faa-bf6c-83261322e5ebwindows
Log Source
WindowsPowerShell Script
ProductWindows← raw: windows
CategoryPowerShell Script← raw: ps_script
Definition
Requirements: Script Block Logging must be enabled
Detection Logic
Detection Logic1 selector
detection:
selection:
ScriptBlockText|contains:
- 'AdjustTokenPrivileges'
- 'IMAGE_NT_OPTIONAL_HDR64_MAGIC'
# - 'LSA_UNICODE_STRING'
- 'Metasploit'
- 'Microsoft.Win32.UnsafeNativeMethods'
- 'Mimikatz'
- 'MiniDumpWriteDump'
- 'PAGE_EXECUTE_READ'
- 'ReadProcessMemory.Invoke'
- 'SE_PRIVILEGE_ENABLED'
- 'SECURITY_DELEGATION'
- 'TOKEN_ADJUST_PRIVILEGES'
- 'TOKEN_ALL_ACCESS'
- 'TOKEN_ASSIGN_PRIMARY'
- 'TOKEN_DUPLICATE'
- 'TOKEN_ELEVATION'
- 'TOKEN_IMPERSONATE'
- 'TOKEN_INFORMATION_CLASS'
- 'TOKEN_PRIVILEGES'
- 'TOKEN_QUERY'
condition: selectionFalse Positives
Depending on the scripts, this rule might require some initial tuning to fit the environment
References
MITRE ATT&CK
Tactics
Sub-techniques
Rule Metadata
Rule ID
f62176f3-8128-4faa-bf6c-83261322e5eb
Status
test
Level
medium
Type
Detection
Created
Sun Mar 05
Modified
Tue Jun 20
Path
rules/windows/powershell/powershell_script/posh_ps_malicious_keywords.yml
Raw Tags
attack.executionattack.t1059.001