Virus Prevalence - May 2001

Virus NamePrevalencePercentageInstances
VBSWG36.1% 2158
W32/Magistr18.9% 1131
W32/BleBla12.2% 731
W32/Hybris9.7% 579
W32/MTX5.5% 330
W32/BadTrans2.5% 152
JS/Kak2.1% 126
XM/Laroux1.9% 113
Homepage1.2% 71
Divi1.1% 66
W32/Navidad1% 60
W32/QAZ0.7% 42
VBS/LoveLetter0.6% 37
Tam0.6% 35
W97M/Marker0.5% 30
W32/Funlove0.5% 28
W32/Msinit0.5% 30
VCX0.4% 25
VBS/Haptime0.4% 24
W97M/Ethan0.3% 20
W32/Ska0.3% 16
Netlog0.2% 9
Solaris/Sadmind0.2% 9
Melissa0.2% 10
Myna0.2% 9
W95/CIH0.2% 9
Stages0.2% 9
Tristate0.2% 12
Titch0.1% 4
W32/Kriz0.1% 7
Class0.1% 5
Form0.1% 6
Footer0.1% 7
W32/Bymer0.1% 8
W32/Pretty0.1% 4
Pica0.1% 7
Cap0.1% 3
W97M/Thus0.1% 8
VMPCK0.1% 4
AntiCMOS0.1% 4
Chack0% 2
Proverb0% 1
Dapm-20% 1
Smack0% 1
Service0% 1
Barisadas0% 2
Junkie0% 1
Groov0% 1
NoInt0% 1
WYX0% 2
Stoned0% 1
Stealth_Boot0% 1
WelcomB0% 2
ColdApe0% 2
Chain0% 2
W32/Plage0% 2
Wazzu0% 2
Opey0% 1
DB0% 1
Hard0% 2
Bablas0% 2
W32/Fix0% 1
W97M/Verlor0% 2
String0% 1
Story0% 1

Background

The Virus Bulletin prevalence table is compiled monthly from virus reports received by Virus Bulletin; both directly, and from other companies who pass on their statistics.

Reports are included only if they are confirmed, and hence, in conjunction with the WildList, the prevalence table provides a useful indication of the relative prevalence of various virus found in the wild at the time.

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