Suspicious External RDP Login

Cortex XDR Analytics Alert Reference by Alert name

Product
Cortex XDR
Last date published
2024-06-18
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

Identity Analytics

ATT&CK Tactic

Initial Access (TA0001)

ATT&CK Technique

External Remote Services (T1133)

Severity

Informational

Description

An unusual successful RDP connection by a user from an external IP.
This may be indicative of using stolen credentials or malicious activity.

Attacker's Goals

The attacker attempts to gain access to the accounts through RDP from an external source.

Investigative actions

  • Identify the user performing RDP and check that it is authorized.
  • Check whether this IP has a malicious reputation.
  • Reset the user's password.
  • Follow further actions done by the user.