The Comodo Antivirus parsing engine can be bypassed by a specially crafted and formatted RAR archive.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/77054/TZO-142009-comodo.txt
Source: https://packetstormsecurity.com/files/77054/Comodo-Antivirus-Evasion.html