The Virus Top Twenty - July 2003

01 Aug 2003
Virus News


Kaspersky Lab presents the Virus Top 20 for the month of July 2003. The percentage shown represents the percentage of registered incidences.
PositionVirusPercentage by Occurrence
1I-Worm.Tanatos8,60%
2I-Worm.Sobig6,56%
3I-Worm.Lentin4,15%
4I-Worm.Klez3,59%
5Macro.Word97.Saver2,37%
6TrojanDropper.JS.Mimail1,50%
7Macro.Word97.Thus1,48%
8VBS.Redlof0,97%
9I-Worm.Ganda0,89%
10Backdoor.SdBot0,58%
11Macro.Word97.Flop0,48%
12Win32.Parite0,46%
13Backdoor.Optix.Pro0,43%
14Backdoor.Beastdoor0,42%
15I-Worm.Avron0,41%
16Worm.P2P.SpyBot0,38%
17I-Worm.Gibe0,37%
18I-Worm.Hybris0,37%
19Backdoor.Death0,32%
20Macro.Word97.Marker0,26%
Other Malicious Programs*65,39%
*not included in the Top 20
Malicious Program Types