Potential Defense Evasion Via Right-to-Left Override
Detects the presence of the "u202+E" character, which causes a terminal, browser, or operating system to render text in a right-to-left sequence. This character is used as an obfuscation and masquerading techniques…
Description
Detects the presence of the "u202+E" character, which causes a terminal, browser, or operating system to render text in a right-to-left sequence. This character is used as an obfuscation and masquerading techniques by adversaries to trick users into opening malicious files.
Detection logic
Detection requirements
- Platform
- LinuxmacOSWindows
The rule states no platform. This is derived from the ATT&CK technique it maps to.
- Log source product
- windows
- Log source category
- process_creation
Known benign triggers
- Commandlines that contains scriptures such as arabic or hebrew might make use of this character
MITRE ATT&CK mappings
0 exclusive techniques.This is coverage no other published rule has; it is not this rule's total technique count.
References
| Reference | Cited by |
|---|---|
| redcanary.com/blog/right-to-left-override/ | 2 |
| tria.ge/241015-l98snsyeje/behavioral2 | 7 |
| unicode-explorer.com/c/202E | Only this detection cites it |
| unprotect.it/technique/right-to-left-override-rlo-extension-spoofing/ | Only this detection cites it |
| www.malwarebytes.com/blog/news/2014/01/the-rtlo-method | 2 |
From the source
- At source
- Open at source
- Upstream identifier
- ad691d92-15f2-4181-9aa4-723c74f9ddc3
- Tagged by the source as
- attack.stealth
Licence
- Published under
- Detection Rule License 1.1Read the licence
- Attribution
- Required
Authorship
- Published
- Aug 26, 2026
- Version
- 1