2004 - Top Viruses so far, as reported by F-Secure

http://www.f-secure.com/weblog/

Now that different Netsky variants rule the earth (there are 7 different Netsky variants in top 10 right now), it's easy to forget how big problem the Mydoom worm was just three months ago. To put things into perspective, here's out stats for 2004 so far, sorted by the percent of all infections:

  1   Mydoom.A  46.4 %
  2   Netsky.D   12.5 %
  3   Netsky.B   10.7 %
  4   NetSky.p   9.7 %
  5   Swen.A     2.0 %
  6   Netsky.Q   1.8 %
  7   Netsky.C   1.6 %
  8   Netsky.T   1.4 %
  9   Dumaru.A   1.2 %
10   Sobig.F    1.1 %

The big peak caused by Mydoom in the end of January is also nicely visible in this graph: