Svchost.exe loads a rare unsigned module

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

ATT&CK Technique

Severity

Low

Description

Svchost.exe loads a rare unsigned module, which can indicate an attacker's malicious service execution.

Attacker's Goals

Evading detections by running code from a signed Microsoft executable.

Investigative actions

  • Check whether the loaded module with the corresponding hash is benign, and if this was a desired behavior as part of its normal execution flow.
  • Go to the 'Services' registry key and investigate its sub keys to find the service associated with the loaded dll.