Abnormal RDP session to a remote host from a rarely seen host

Synopsis

Field	Value
Activation Period	14 Days
Training Period	30 Days
Test Period	N/A (single event)
Deduplication Period	1 Day
Required Data	Requires one of the following data sources: Palo Alto Networks Firewall traffic Logs OR XDR Agent OR Third-Party Firewalls
Detector Tags	NDR Lateral Movement Analytics, NDR Unmanaged Subnet Analytics
ATT&CK Tactic	Lateral Movement (TA0008)
ATT&CK Technique	Remote Services: Remote Desktop Protocol (T1021.001)
Severity	Low

Description

The endpoint performed a rare RDP session to a remote host.

Attacker's Goals

• Attackers may attempt to move laterally over the network by using compromised accounts or machines to connect to remote hosts using the RDP protocol.

Investigative actions

• Inspect the legitimacy of the user which the RDP made the connection with.
• Verify that this isn't IT activity.