Top 12 Viruses for October 2004 Named by Central Comand

"Dirty dozen" continue to infiltrate PCs


The list of the top 12 viruses for October is out from anti-virus software and computer security services provider Central Command. The report, coined the "Dirty Dozen," is based on the number of virus occurrences confirmed through Central Command's Emergency Virus Response Team.

The table below represents the most prevalent viruses for October 2004, number one being the most frequent.

Ranking, Virus Name, Percentage
1. Worm/Netsky.P 41.2%
2. Worm/Netsky.Z 10.7%
3. Worm/Zafi.B 10.6%
4. Worm/Bagle.AA 7.4%
5. Worm/Netsky.D 3.8%
6. Worm/Bagle.AT 3.3%
7. Worm/Lovgate.W 2.8%
8. Worm/Netsky.B 2.3%
9. Worm/Netsky.C 2.0%
10. Worm/Netsky.A 1.6%
11. Worm/Bagle.AR 1.1%
12. Worm/Lovgate.AU 0.9%
Others 12.3%

"Since its release back in March, Worm/Netsky.P refuses to diminish in prevalence. In fact, this month, it appeared to gain momentum," said Steven Sundermeier, vice president of products and services at Central Command, Inc. "Worm/Netsky.P has been positioned number one in the Dirty Dozen since June. Over that span it has accounted for over 38 percent of all confirmed virus occurrences. Unfortunately, it doesn't show any signs of coming to a halt anytime soon."

New to the list are Worm/Bagle.AT and Worm/Bagle.AR. The two new Bagle variants debuted in positions sixth and eleventh respectively.