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).[1]

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.[2] This can be done remotely or locally and with active or disconnected sessions.[3] 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.[4]

References

  1. Microsoft. (n.d.). Remote Desktop Services. Retrieved June 1, 2016.
  2. Korznikov, A. (2017, March 17). Passwordless RDP Session Hijacking Feature All Windows versions. Retrieved December 11, 2017.
  3. Beaumont, K. (2017, March 19). RDP hijacking — how to hijack RDS and RemoteApp sessions transparently to move through an organisation. Retrieved December 11, 2017.
  4. NCC Group PLC. (2016, November 1). Kali Redsnarf. Retrieved December 11, 2017.

Ticket collegati

Collegamenti
Tipo di collegamento Ticket
is related to Techniques
is blocked by Limit Access to Resource Over Network
is blocked by Detection of Remote Service Session Hijacking for RDP.
is blocked by Network Segmentation
is blocked by Operating System Configuration
is blocked by User Account Management
is blocked by Audit
is blocked by Disable or Remove Feature or Program
is blocked by Privileged Account Management
is blocked by Asset Governance
is blocked by Prohibition Of Changes
is blocked by Configuration Management Program
is blocked by Least Functionality
is blocked by Continuous Monitoring Policy
is blocked by Personnel Transfer
is blocked by Identity & Access Management (IAM)
is blocked by Password-Based Authentication
is blocked by Authenticator Feedback
is blocked by Restrictions on Shared Groups / Accounts
is blocked by Reference Monitor
is blocked by Access Enforcement
is blocked by Boundary Protection
is blocked by Data Flow Enforcement – Access Control Lists (ACLs)
is blocked by Zero Trust Architecture (ZTA)
is blocked by Vulnerability Remediation Process
is blocked by Asset Inventories
is blocked by Access Restriction For Change
is blocked by Secure Baseline Configurations
is blocked by Session Lock
is blocked by Session Termination
is blocked by Continuous Monitoring
is blocked by Separation of Duties (SoD)
is blocked by Account Management
is blocked by Least Privilege
is blocked by Identification & Authentication for Organizational Users
is blocked by Remote Access
is blocked by Cross Domain Solution (CDS)
is blocked by Vulnerability Scanning