The Virus Top Twenty for September 2001

01 Oct 2001
Virus News

position virus percentage by occurrence
1 I-Worm.Sircam 53.5 %
2 I-Worm.Hybris.b 18.5%
3 I-Worm.Nimda 3.6%
4 I-Worm.Magistr 2.6%
5 I-Worm.HappyTime 1.3%
6 JS.Trojan.Seeker-based 1.2%
7 I-Worm.Magistr.b 1.1%
8 Worm.Hai 0.7%
9 I-Worm.Roach 0.4%
10 I-Worm.Hybris.d 0.3%
11 I-Worm.MTX 0.3%
12 Trojan.PSW.Unite.d 0.3%
13 I-Worm.Apost 0.3%
14 I-Worm.Hybris.gen 0.2%
15 Backdoor.IRC.Critical 0.2%
16 I-Worm.LoveLetter 0.2%
17 Trojan.PSW.Coced.236.e 0.2%
18 PS-MPC-based 0.2%
19 Trojan.Win32.VirtualRoot 0.2%
20 Macro.Office.Toraja.b 0.2%