Kaspersky Antivirus (KAV) 4.0.9.0 does not detect viruses in files with MS-DOS device names in their filenames, which allows local users to bypass virus protection, as demonstrated using aux.vbs and aux.com.
https://exchange.xforce.ibmcloud.com/vulnerabilities/11292
https://euvd.enisa.europa.eu/vulnerability/EUVD-2003-1433
http://archives.neohapsis.com/archives/bugtraq/2003-02/0130.html