Rare DCOM RPC activity

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

N/A (single event)

Deduplication Period

1 Day

Required Data

  • Requires:
    • XDR Agent

Detection Modules

ATT&CK Tactic

Lateral Movement (TA0008)

ATT&CK Technique

Remote Services: Distributed Component Object Model (T1021.003)

Severity

Informational

Description

The endpoint performed abnormal DCOM RPC activity to a remote host.

Attacker's Goals

  • Attackers may attempt to gain persistence or move laterally over the network by executing code on remote hosts using the DCOM RPC interface.
  • The DCOM RPC interface is used to remotely invoke registered COM applications on remote hosts.

Investigative actions

  • Review the action of the initiated COM application on the remote host.
  • Correlate the RPC call from the source host and understand which software initiated it.
  • Verify that this isn't IT activity.

Variations

Rare DCOM RPC activity detected

Synopsis

ATT&CK Tactic

Lateral Movement (TA0008)

ATT&CK Technique

Remote Services: Distributed Component Object Model (T1021.003)

Severity

Low

Description

The endpoint performed abnormal DCOM RPC activity to a remote host.

Attacker's Goals

  • Attackers may attempt to gain persistence or move laterally over the network by executing code on remote hosts using the DCOM RPC interface.
  • The DCOM RPC interface is used to remotely invoke registered COM applications on remote hosts.

Investigative actions

  • Review the action of the initiated COM application on the remote host.
  • Correlate the RPC call from the source host and understand which software initiated it.
  • Verify that this isn't IT activity.