Analytics BIOC Informational

An uncommon RDP session was established

An RDP session was established with uncommon parameters.

Module:
Platform Analytics
Data source:
XDR Agent
ATT&CK tactics: Lateral Movement (TA0008)
ATT&CK techniques: Remote Services: Remote Desktop Protocol (T1021.001)
Detector tags: Enhanced RDP Analytics
Attacker's goals:

Adversaries may use RDP for initial access or lateral movement within a network.

Investigative actions:

Investigate the source and destination of the RDP communication. Check if this communication is legitimate and expected. Analyze the user and process that initiated the RDP connection.

Test period:
N/A (single event)
Deduplication:
1 Day
6 variations:
  • An uncommon RDP session was established by an RMM actor Low (parent: Informational)
  • An uncommon RDP session was established from a Suspicious Autonomous System (AS) Medium (parent: Informational)
  • An uncommon RDP session was established originating from a chained RDP session which is also from a rare subnet Low (parent: Informational)
  • An uncommon RDP session was established between subnets with no prior communication Low (parent: Informational)
  • An uncommon RDP session was established involving subnets with no prior RDP history Low (parent: Informational)
  • An uncommon RDP session was established involving a destination subnet which rarely receives incoming RDP sessions Low (parent: Informational)