Potential File Extension Spoofing Using Right-to-Left Override

Detects suspicious filenames that contain a right-to-left override character and a potentially spoofed file extensions.

Detection logic

Platform: Linux macOS Windows
The rule states no platform. This is derived from the ATT&CK technique it maps to.
Log source product: windows
Log source category: file_event

Filenames that contains scriptures such as arabic or hebrew might make use of this character

Links the source published beside this detection. Reference is the link the source wrote, unmodified. Class is decided by this catalogue from the host and path, not stated by the source. Cited by counts published detections citing the same resource, including this one, and the sources beneath it count the repositories this catalogue ingests, which is not the same as independent research.
Reference	Class	Cited by
redcanary.com/blog/right-to-left-override/	Security research	2
tria.ge/241015-l98snsyeje/behavioral2	Unclassified	7
www.malwarebytes.com/blog/news/2014/01/the-rtlo-method	Unclassified	2
www.unicode.org/versions/Unicode5.2.0/ch02.pdf	Unclassified	2