Virus Prevalence - July 1999

Virus NamePrevalencePercentageInstances
ColdApe26.82% 299
W32/Ska14.35% 160
W97M/Ethan11.57% 129
XM/Laroux9.51% 106
W97M/Marker8.7% 97
Class8.43% 94
Melissa4.75% 53
Tristate2.96% 33
Footer2.69% 30
CAP2.6% 29
W32/ExploreZip0.99% 11
W95/CIH0.72% 8
Story0.54% 6
Chack0.36% 4
Concept0.36% 4
Extras0.36% 4
Groovie0.36% 4
Compat0.36% 4
Form0.27% 3
Nono0.27% 3
PSD0.27% 3
PTL0.18% 2
Npad0.18% 2
Pri0.18% 2
Breasts0.18% 2
WelcomB0.18% 2
Satellite0.18% 2
Wazzu0.18% 2
AntiCMOS0.18% 2
One_Half0.18% 2
Bandung0.09% 1
Nottice0.09% 1
Proteced0.09% 1
W32/Pretty0.09% 1
Groov0.09% 1
Appder0.09% 1
Cascade0.09% 1
Ripper0.09% 1
Parity_Boot0.09% 1
MDMA0.09% 1
Counter0.09% 1
DNA0.09% 1
VMPCK0.09% 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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