Detection rules › Sigma
RDP Port Forwarding Rule Added Via Netsh.EXE
Detects the execution of netsh to configure a port forwarding of port 3389 (RDP) rule
Known false positives
- Legitimate administration activity
MITRE ATT&CK coverage
| Tactic | Techniques |
|---|---|
| Command & Control |
Telemetry coverage
| Provider | Record / event type |
|---|---|
| Sysmon | Event ID 1: Process creation |
Rule body
title: RDP Port Forwarding Rule Added Via Netsh.EXE
id: 782d6f3e-4c5d-4b8c-92a3-1d05fed72e63
status: test
description: Detects the execution of netsh to configure a port forwarding of port 3389 (RDP) rule
references:
- https://www.fireeye.com/blog/threat-research/2019/01/bypassing-network-restrictions-through-rdp-tunneling.html
author: Florian Roth (Nextron Systems), oscd.community
date: 2019-01-29
modified: 2023-02-13
tags:
- attack.lateral-movement
- attack.command-and-control
- attack.t1090
logsource:
category: process_creation
product: windows
detection:
selection_img:
- Image|endswith: '\netsh.exe'
- OriginalFileName: 'netsh.exe'
selection_cli:
CommandLine|contains|all:
- ' i'
- ' p'
- '=3389'
- ' c'
condition: all of selection_*
falsepositives:
- Legitimate administration activity
level: high
Stages and Predicates
Stage 0: condition
all of selection_*Stage 1: selection_img
selection_img:
- Image|endswith: '\netsh.exe'
- OriginalFileName: 'netsh.exe'
Stage 2: selection_cli
selection_cli:
CommandLine|contains|all:
- ' i'
- ' p'
- '=3389'
- ' c'
Indicators
These rows show field, operator, and value matches.
| Field | Kind | Values | Search |
|---|---|---|---|
CommandLine | match |
| field:"CommandLine" kind:match |
Image | ends_with |
| field:"Image" kind:ends_with value:"\netsh.exe" |
OriginalFileName | eq |
| field:"OriginalFileName" kind:eq value:"netsh.exe" |