Virus writers in malicious code hide-and-seek By John Leyden Posted: 05/03/2004 at 13:48 GMT A fresh angle of attack by virus writers is challenging new anti-virus techniques. The latest versions of the Bagle worm spreading this week contain a malicious payload hidden in a password-protected zip archive. This is the first time the trick has been used to spread the virus in the wild, though the ruse has been seen in lab copies of viral code (e.g. Fearso), dating from last Summer. The password-protected Zip archive technique enables virus writers to hide malware in files which gateway AV scanners normally can't open, so skipping one layer of protection commonly used by many large companies. Conventional desktop AV scanners would still block infection at the point a user unzips password-protected viral files - assuming the correct signature update is available - but it's obviously desirable to stop malicious code reaching the user's PC in the first place. Read more here: http://www.theregister.co.uk/content/55/36049.html =A9 The Register. ~*~*~*~*~ To unsubscribe from our list send an email to hackfix-virusnews-request@xxxxxxxxxxxxx?Subject=unsubscribe. For a complete list of email commands for our list send an email to ecartis@xxxxxxxxxxxxx with a subject line of "info hackfix-virusnews" without the quotes. ~*~*~*~*~