Rare NTLM Access By User To Host

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

Detection Modules

Identity Analytics

ATT&CK Tactic

Lateral Movement (TA0008)

ATT&CK Technique

Use Alternate Authentication Material (T1550)

Severity

Informational

Description

An unusual NTLM authentication attempt by a user to host
This may be indicative of using stolen credentials or access tokens to access restricted hosts.

Attacker's Goals

The attacker is attempting to move laterally within a compromised network.

Investigative actions

Verify any successful authentication for the user account referenced by the alert, as these can indicate the attacker managed to use the stolen credentials.