Detection rules › Sigma
Suspicious RDP Redirect Using TSCON
Detects a suspicious RDP session redirect using tscon.exe
MITRE ATT&CK coverage
| Tactic | Techniques |
|---|---|
| Lateral Movement | T1021.001 Remote Services: Remote Desktop Protocol, T1563.002 Remote Service Session Hijacking: RDP Hijacking |
Event coverage
| Provider | Event | Title |
|---|---|---|
| Sysmon | Event ID 1 | Process creation |
| Security-Auditing | Event ID 4688 | A new process has been created. |
Rule body yaml
title: Suspicious RDP Redirect Using TSCON
id: f72aa3e8-49f9-4c7d-bd74-f8ab84ff9bbb
status: test
description: Detects a suspicious RDP session redirect using tscon.exe
references:
- http://www.korznikov.com/2017/03/0-day-or-feature-privilege-escalation.html
- https://medium.com/@networksecurity/rdp-hijacking-how-to-hijack-rds-and-remoteapp-sessions-transparently-to-move-through-an-da2a1e73a5f6
- https://www.hackingarticles.in/rdp-session-hijacking-with-tscon/
author: Florian Roth (Nextron Systems)
date: 2018-03-17
modified: 2023-05-16
tags:
- attack.lateral-movement
- attack.t1563.002
- attack.t1021.001
- car.2013-07-002
logsource:
category: process_creation
product: windows
detection:
selection:
CommandLine|contains: ' /dest:rdp-tcp#'
condition: selection
falsepositives:
- Unknown
level: high
Stages and Predicates
Stage 0: condition
selectionStage 1: selection
selection:
CommandLine|contains: ' /dest:rdp-tcp#'
Indicators
Each row is a field, operator, and value that the rule matches. The corpus column counts how many other rules in the catalog look for the same combination: high numbers point to widely-used, community-vetted indicators. Blank or 1 shows that the indicator is specific to this rule.
| Field | Kind | Values |
|---|---|---|
CommandLine | match |
|