Unicode RTL Override Character

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

Defense Evasion (TA0005)

ATT&CK Technique

Obfuscated Files or Information (T1027)

Severity

High

Description

An attacker may use a special right-to-left (RTL) override character to trick users into executing malicious files that look like benign file types.

Attacker's Goals

Trick users into executing malicious files by making their file types seem benign.

Investigative actions

Investigate the executed process. There is no reason for benign files to contain the Unicode right-to-left override character in their name.