Potential RDP Tunneling Via SSH — Sigma Rule

Rule metadata and linked tags

Author: Nasreddine Bencherchali (Nextron Systems). Source status: test; severity: high. Source dates: 2022-10-12 / 2023-01-25.

{
  "category": "process_creation",
  "product": "windows"
}

Pinned original Sigma rule · Detection Rule License 1.1

Source SHA-256: 9077aa05059b07298698f061f4e0fa32e98cc34051d4de05b4dc1944841dcb4f

Detection logic

Original source YAML. Source-tag agreement is not proof of complete semantic coverage. This rule has not been compiled for a SIEM backend or validated against live telemetry here.

title: Potential RDP Tunneling Via SSH
id: f7d7ebd5-a016-46e2-9c54-f9932f2d386d
related:
    - id: f38ce0b9-5e97-4b47-a211-7dc8d8b871da # plink.exe
      type: similar
status: test
description: Execution of ssh.exe to perform data exfiltration and tunneling through RDP
references:
    - https://www.absolomb.com/2018-01-26-Windows-Privilege-Escalation-Guide/
author: Nasreddine Bencherchali (Nextron Systems)
date: 2022-10-12
modified: 2023-01-25
tags:
    - attack.command-and-control
    - attack.t1572
logsource:
    category: process_creation
    product: windows
detection:
    selection:
        Image|endswith: '\ssh.exe'
        CommandLine|contains: ':3389'
    condition: selection
falsepositives:
    - Unknown
level: high

Original YAML and metadata in JSON

False positives

• Unknown

Source references

• https://www.absolomb.com/2018-01-26-Windows-Privilege-Escalation-Guide/