EUVD-2005-3373

Malware in sbrugna...

Multiple Vendor Unusual MIME Encoding Content Filter Bypass

Several e-mail virus scanners can be tricked into passing an EICAR test file if the following conditions are met: 1. the EICAR file is encoded in Base64 including characters not in the standard alphabet e.g. whitespaces and 2. the part containing the EICAR file is nested within one or several...