Malware reports

The Virus Top Twenty – March 2003

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

The percentage shown represents the percentage of registered incidences.

 

position virus percentage by occurrence
1 I-Worm.Klez 37.60%
2 I-Worm.Sobig 10.75%
3 I-Worm.Lentin 9.03%

4
I-Worm.Avron
3.30%

5
Macro.Word97.Thus
2.62%

6
I-Worm.Tanatos
1.38%

7
Macro.Word97.Marker
1.21%

8
Worm.Win32.Opasoft
1.13%

9
I-Worm.Hybris
1.04%

10
Win95.CIH
0.69%

11
Worm.Win32.Randon
0.58%

12
<!–!–>VBS.Redlof
0.57%

13
Backdoor.Death
0.51%

14
Win95.Spaces
0.51%

15
I-Worm.Roron
0.49%

16
Trojan.PSW.Gip
0.49%

17
<!–!–>Backdoor.NetDevil
0.48%

18
Win32.HLLP.Hantaner
0.45%

19
<!–!–>TrojanDropper.Win32.Delf
0.42%

20
<!–!–>TrojanDropper.Win32.Yabinder
0.41%

Other Malicious Programs*
25.33%
*not included in the Top 20

The Virus Top Twenty – March 2003

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