Port Forwarding Activity Via SSH.EXE — Sigma Rule

Rule metadata and linked tags

Author: Nasreddine Bencherchali (Nextron Systems). Source status: test; severity: medium. Source dates: 2022-10-12 / 2024-03-05.

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

Pinned original Sigma rule · Detection Rule License 1.1

Source SHA-256: fc5dbfcf61ab95349e55ca21766503b90ac23c7581511adf6a31881c3b90d55c

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: Port Forwarding Activity Via SSH.EXE
id: 327f48c1-a6db-4eb8-875a-f6981f1b0183
status: test
description: Detects port forwarding activity via SSH.exe
references:
    - https://www.absolomb.com/2018-01-26-Windows-Privilege-Escalation-Guide/
author: Nasreddine Bencherchali (Nextron Systems)
date: 2022-10-12
modified: 2024-03-05
tags:
    - attack.command-and-control
    - attack.lateral-movement
    - attack.t1572
    - attack.t1021.001
    - attack.t1021.004
logsource:
    category: process_creation
    product: windows
detection:
    selection:
        Image|endswith: '\ssh.exe'
        CommandLine|contains|windash: ' -R '
    condition: selection
falsepositives:
    - Administrative activity using a remote port forwarding to a local port
level: medium

Original YAML and metadata in JSON

False positives

• Administrative activity using a remote port forwarding to a local port

Source references

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