The Virus Top Twenty - August 2003

01 Sep 2003
Virus News


Kaspersky Lab presents the Virus Top 20 for the month of August 2003. The percentage shown represents the percentage of registered incidences.
PositionVirusPercentage by Occurrence
1I-Worm.Sobig 61.49%
2I-Worm.Mimail 4.06%
3I-Worm.Tanatos 3.49%
4Worm.Win32.Lovesan3.17%
5 I-Worm.Klez 1.09%
6 I-Worm.Lentin 0.67%
7Worm.P2P.SpyBot0.66%
8 Macro.Word97.Thus0.60%
9 Macro.Word97.Saver 0.60%
10 Backdoor.BeastDoor0.50%
11 Backdoor.SdBot 0.48%
12Win32.Parite0.41%
13 VBS.Redlof 0.36%
14 Backdoor.Optix.Pro 0.29%
15 I-Worm.Roron 0.25%
16 TrojanDropper.Win32.Freshbind 0.22%
17 Worm.Win32.Muma 0.20%
18 Win32.Xorala 0.19%
19 Worm.Win32.Welchia 0.19%
200.19%
Other Malicious Programs*20.86%

*not included in the Top 20
Malicious Program Types