Analytics BIOC Low

Uncommon VNC server communication

Uncommon VNC server network traffic was observed.

Module:
Platform Analytics
Data source:
XDR Agent
ATT&CK tactics: Command and Control (TA0011) Lateral Movement (TA0008)
ATT&CK techniques: Remote Access Tools (T1219) Remote Services: VNC (T1021.005)
Attacker's goals:

Accessing a remote machine with full interactive graphic interface capabilities.

Investigative actions:

Check if the product usage is approved. Check if it was executed remotely or locally.

Test period:
N/A (single event)
Deduplication:
1 Day
4 variations:
  • Uncommon VNC scanning activity detected from a scanning tool Medium (parent: Low)
  • Uncommon VNC server communication from an unmanaged previously unseen external host Low
  • Partially uncommon VNC server communication Informational (parent: Low)
  • Uncommon VNC server connection Informational (parent: Low)