NTLM Hash Harvesting

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

1 Hour

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

Credential Access (TA0006)

ATT&CK Technique

OS Credential Dumping (T1003)

Severity

Medium

Description

An unusual number of users has sent NTLM to a target in the last hour.
This may be indicative of poisoning and NTLM hash harvesting.

Attacker's Goals

The attacker may attempt to extract NTLM hashes for credential access.

Investigative actions

  • Check that the destination is not a server.
  • Verify that the destination is not external to the organization.