Abnormal sensitive RPC traffic to multiple hosts

Cortex XDR Analytics Alert Reference by Alert name

Product
Cortex XDR
Last date published
2024-06-04
Category
Analytics Alert Reference
Order
Alert name

Synopsis

Activation Period

14 Days

Training Period

30 Days

Test Period

5 Hours

Deduplication Period

1 Day

Required Data

  • Requires one of the following data sources:
    • Palo Alto Networks Platform Logs
      OR
    • XDR Agent

Detection Modules

ATT&CK Tactic

Lateral Movement (TA0008)

ATT&CK Technique

Remote Services (T1021)

Severity

Low

Description

The endpoint performed unfamiliar RPC activity to multiple hosts using a known sensitive interface.

Attacker's Goals

An adversary may enumerate different protocols to gain information and plan its lateral movement over the network.

Investigative actions

  • Check if the host is a newly deployed server that provides RPC based services to multiple hosts.
  • Verify the legitimacy of the actor process (and its causality) that initiated this RPC traffic.

Variations

Abnormal sensitive RPC traffic to multiple IPs

Synopsis

ATT&CK Tactic

Lateral Movement (TA0008)

ATT&CK Technique

Remote Services (T1021)

Severity

Informational

Description

The endpoint performed unfamiliar RPC activity to multiple hosts using a known sensitive interface.

Attacker's Goals

An adversary may enumerate different protocols to gain information and plan its lateral movement over the network.

Investigative actions

  • Check if the host is a newly deployed server that provides RPC based services to multiple hosts.
  • Verify the legitimacy of the actor process (and its causality) that initiated this RPC traffic.