Possible binary padding using dd

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 Hour

Required Data

  • Requires:
    • XDR Agent

Detection Modules

ATT&CK Tactic

Defense Evasion (TA0005)

ATT&CK Technique

Obfuscated Files or Information: Binary Padding (T1027.001)

Severity

Informational

Description

A suspicious dd command ran and added data to a binary. This may indicate binary padding to change the hash of a file.

Attacker's Goals

An adversary may use binary padding to avoid hash-based blacklists and static antivirus signatures.

Investigative actions

Check the padded file and try to understand the impact of padding this specific binary.