Security researcher Thierry Zoller has finally seen the generalized vulnerability he found in some AV products patched. The bug can affect multiple types of archive formats including ISO, ZIP and Bz2. The evasion happens if a format is manipulated in such a way that the scanner thinks it is of another filetype. Zoller says that even when notified not every Anti-virus vendor cared enough to close these apparent problems, or add a logic for gateway products to allow them to block bypasses on request.”]
Source: https://www.darkreading.com/abtv/researcher-proven-right-but-it-took-10-years/a/d-id/756619