sigmahighHunting

Renamed Plink Execution

Detects the execution of a renamed version of the Plink binary

MITRE ATT&CK

defense-evasion

Detection Query

selection:
  - OriginalFileName: Plink
  - CommandLine|contains|all:
      - " -l forward"
      - " -P "
      - " -R "
filter:
  Image|endswith: \plink.exe
condition: selection and not filter

Author

Nasreddine Bencherchali (Nextron Systems)

Created

2022-06-06

Data Sources

windowsProcess Creation Events

Platforms

windows

References

Tags

attack.defense-evasionattack.t1036

Raw Content

title: Renamed Plink Execution
id: 1c12727d-02bf-45ff-a9f3-d49806a3cf43
status: test
description: Detects the execution of a renamed version of the Plink binary
references:
    - https://thedfirreport.com/2022/06/06/will-the-real-msiexec-please-stand-up-exploit-leads-to-data-exfiltration/
    - https://the.earth.li/~sgtatham/putty/0.58/htmldoc/Chapter7.html
author: Nasreddine Bencherchali (Nextron Systems)
date: 2022-06-06
modified: 2023-02-03
tags:
    - attack.defense-evasion
    - attack.t1036
logsource:
    category: process_creation
    product: windows
detection:
    selection:
        - OriginalFileName: 'Plink'
        - CommandLine|contains|all:
              - ' -l forward'
              - ' -P '
              - ' -R '
    filter:
        Image|endswith: '\plink.exe'
    condition: selection and not filter
falsepositives:
    - Unknown
level: high