The Virus Top Twenty – August 2003

Kaspersky Labs presents the Virus Top 20 for the month of August 2003.

The percentage shown represents the percentage of registered incidences.

Position Virus Percentage by Occurrence

 

1
I-Worm.Sobig
61.49%

2
I-Worm.Mimail
4.06%

3
I-Worm.Tanatos
3.49%

4
Worm.Win32.Lovesan
3.17%

5
I-Worm.Klez
1.09%

6
I-Worm.Lentin 0.67%

7
Worm.P2P.SpyBot
0.66%

8
Macro.Word97.Thus
0.60%

9
Macro.Word97.Saver
0.60%

10
Backdoor.BeastDoor
0.50%

11
Backdoor.SdBot
0.48%

12
Win32.Parite
0.41%

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%

20
I-Worm.Gibe
0.19%

Other Malicious Programs*
20.86%

*not included in the Top 20

Malicious Program Types

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