Virus Prevalence - August 1999

Virus NamePrevalencePercentageInstances
ColdApe47.44% 897
W32/Ska8.94% 169
W97M/Ethan7.51% 142
W97M/Marker6.4% 121
Class4.49% 85
XM/Laroux4.28% 81
Tristate2.91% 55
Melissa2.8% 53
W95/CIH1.85% 35
Story1.59% 30
Cap1.43% 27
Footer1.37% 26
Temple1.22% 23
Toadie0.63% 12
Parity_Boot0.53% 10
Ded0.53% 10
W32/Kriz0.37% 7
Form0.37% 7
Locale0.37% 7
W97M/Thus0.32% 6
Cont0.32% 6
Groov0.26% 5
Pri0.26% 5
Chack0.21% 4
Concept0.21% 4
Shuffle0.21% 4
VCX0.21% 4
Compat0.21% 4
Mental0.21% 4
AntiCMOS0.21% 4
Nottice0.16% 3
W32/Pretty0.16% 3
W32/ExploreZip0.16% 3
Showoff0.16% 3
VMPCK0.16% 3
Npad0.11% 2
Ravage0.11% 2
Badboy0.11% 2
Empire.Monkey0.11% 2
Ozwer0.11% 2
Walker0.11% 2
Johnny0.05% 1
Eco0.05% 1
AntiEXE0.05% 1
Shiver0.05% 1
Bleah0.05% 1
Jerusalem0.05% 1
PSD0.05% 1
Imposter0.05% 1
Cascade0.05% 1
Ripper0.05% 1
Sampo0.05% 1
TPE0.05% 1
Opey0.05% 1
NiceDay0.05% 1
Paix0.05% 1
Beast0.05% 1
Angelina0.05% 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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