Bypass Virus Detection With Zero Compressed Size Header

Viruses and worms
1

See this url: http://securitytracker.com/alerts/2004/Oct/1011768.html

2

Hmm it seems that it makes Panda and the other AV seems superior then those who cannot detect zip files. :-\

3

What about avast? Does it bypass virus detection with zero compressed size header?

4

This is not critical.It may bypass IM Shield/P2P SHield/Internet Mail,but it cannot bypass Standard Shield in any way. It will be detected upon extraction.