eTrust InoculateIT 6.0 with the "Incremental Scan" option enabled may certify that a file is free of viruses before the file has been completely downloaded, which allows remote attackers to bypass virus detection.
https://exchange.xforce.ibmcloud.com/vulnerabilities/10770
http://www.derkeiler.com/Mailing-Lists/NT-Bugtraq/2002-12/0003.html