Sub-technique of T1563 Remote Service Session Hijacking.View on attack.mitre.org
Adversaries may hijack a legitimate user’s remote desktop session to move laterally within an environment. Remote desktop is a common feature in operating systems. It allows a user to log into an interactive session with a system desktop graphical user interface on a remote system. Microsoft refers to its implementation of the Remote Desktop Protocol (RDP) as Remote Desktop Services (RDS).
Adversaries may perform RDP session hijacking which involves stealing a legitimate user's remote session. Typically, a user is notified when someone else is trying to steal their session. With System permissions and using Terminal Services Console, `c:\windows\system32\tscon.exe [session number to be stolen]`, an adversary can hijack a session without the need for credentials or prompts to the user. This can be done remotely or locally and with active or disconnected sessions. It can also lead to Remote System Discovery and Privilege Escalation by stealing a Domain Admin or higher privileged account session. All of this can be done by using native Windows commands, but it has also been added as a feature in red teaming tools.
Rules on DetectionCode tagged with T1563.002.
| Rule | Level | Log source |
|---|---|---|
| Potential MSTSC Shadowing Activity | high | windows / process_creation |
| Suspicious RDP Redirect Using TSCON | high | windows / process_creation |
| Rule | Type | Risk | Data source |
|---|---|---|---|
| Windows RDP Connection Successful | Hunting | NULL | Windows Event Log RemoteConnectionManager 1149 |
| Windows Service Create with Tscon | TTP | NULL | Sysmon EventID 1, Windows Event Log Security 4688, CrowdStrike ProcessRollup2 |
None recorded.
| Used by | Procedure example |
|---|---|
| GroupAxiom | Axiom has targeted victims with remote administration tools including RDP. |
Data from MITRE ATT&CK® (Enterprise). ATT&CK® is a registered trademark of The MITRE Corporation.
