diff --git a/rules/windows/process_creation/proc_creation_win_susp_right_to_left_override.yml b/rules/windows/process_creation/proc_creation_win_susp_right_to_left_override.yml new file mode 100644 index 000000000..3ea4b6b5d --- /dev/null +++ b/rules/windows/process_creation/proc_creation_win_susp_right_to_left_override.yml @@ -0,0 +1,25 @@ +title: Potential Defense Evasion Via Right-to-Left Override +id: ad691d92-15f2-4181-9aa4-723c74f9ddc3 +status: experimental +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 is used as an obfuscation and masquerading techniques. +references: + - https://redcanary.com/blog/right-to-left-override/ + - https://www.malwarebytes.com/blog/news/2014/01/the-rtlo-method + - https://unicode-explorer.com/c/202E +author: Micah Babinski, @micahbabinski +date: 2023/02/15 +tags: + - attack.defense_evasion + - attack.t1036.002 +logsource: + category: process_creation + product: windows +detection: + selection: + CommandLine|contains: "\u202e" + condition: selection +falsepositives: + - Commandlines that contains scriptures such as arabic or hebrew might make use of this character +level: high