sigmahighHunting

Powershell Install a DLL in System Directory

Uses PowerShell to install/copy a file into a system directory such as "System32" or "SysWOW64"

MITRE ATT&CK

persistencedefense-evasioncredential-access

Detection Query

selection:
  ScriptBlockText|re: (Copy-Item|cpi) .{2,128} -Destination .{1,32}\\Windows\\(System32|SysWOW64)
condition: selection

Author

frack113, Nasreddine Bencherchali (Nextron Systems)

Created

2021-12-27

Data Sources

windowsps_script

Platforms

windows

References

https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1556.002/T1556.002.md#atomic-test-1---install-and-register-password-filter-dll

Tags

attack.persistenceattack.defense-evasionattack.credential-accessattack.t1556.002

Raw Content

title: Powershell Install a DLL in System Directory
id: 63bf8794-9917-45bc-88dd-e1b5abc0ecfd
status: test
description: Uses PowerShell to install/copy a file into a system directory such as "System32" or "SysWOW64"
references:
    - https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1556.002/T1556.002.md#atomic-test-1---install-and-register-password-filter-dll
author: frack113, Nasreddine Bencherchali (Nextron Systems)
date: 2021-12-27
modified: 2024-01-22
tags:
    - attack.persistence
    - attack.defense-evasion
    - attack.credential-access
    - attack.t1556.002
logsource:
    product: windows
    category: ps_script
    definition: 'Requirements: Script Block Logging must be enabled'
detection:
    selection:
        ScriptBlockText|re: '(Copy-Item|cpi) .{2,128} -Destination .{1,32}\\Windows\\(System32|SysWOW64)'
    condition: selection
falsepositives:
    - Unknown
level: high