Top ten viruses reported to Sophos in May 2002

Position Last
month Virus Percentage of reports
1 1 W32/Klez-H

  52.9%
 
2 4 W32/ElKern-C

  23.7%
 
3 3 W32/Badtrans-B

  3.5%
 
4 5 W32/Magistr-B

  2.1%
 
5 2 W32/Klez-E

  1.8%
 
6 8= W32/Magistr-A

  1.3%
 
7= Re-entry W32/Nimda-A

  0.7%
 
7= 8= W32/Nimda-D

  0.7%
 
9 8= W32/Sircam-A

  0.6%
 
10 Re-entry W32/Flcss

  0.5%
 
Others 12.2%