Suspicious AMSI decode attempt

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 Minute

Required Data

  • Requires:
    • XDR Agent
  • Requires:
    • eXtended Threat Hunting (XTH)

Detection Modules

ATT&CK Tactic

Defense Evasion (TA0005)

ATT&CK Technique

Deobfuscate/Decode Files or Information (T1140)

Severity

Informational

Description

A script has executed commands that can be used to decode commands or files.

Attacker's Goals

Avoid security mitigations and detections.

Investigative actions

Check the payload for malicious activity.