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September - December Top Ten 2001

January 3, 2002

position virus percentage by occurrence 1 I-Worm.BadtransII 40.8% 2 I-Worm.Sircam 15.6% 3 I-Worm.Hybris 6.4% 4 I-Worm.Aliz 3.1% 5 I-Worm.Nimda 2.7% 6 I-Worm.Magistr 2.3% 7 Trojan.PSW.GIP 2.0% 8 I-Worm.Happytime 0.5% 9 JS.Trojan.Seeker 0.4% 10 I-Worm.Klez 0.3%

September - December Top Ten 2001

position virus percentage by occurrence 1 I-Worm.BadtransII 40.8% 2 I-Worm.Sircam 15.6% 3 I-Worm.Hybris 6.4% 4 I-Worm.Aliz 3.1% 5 I-Worm.Nimda 2.7% 6 I-Worm.Magistr 2.3% 7 Trojan.PSW.GIP 2.0% 8 I-Worm.Happytime 0.5% 9 JS.Trojan.Seeker 0.4% 10 I-Worm.Klez 0.3%
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