Virus Prevalence - April 1999

Virus NamePrevalencePercentageInstances
Coldape18.33% 926
Cap9.99% 505
W97M/Ethan9.8% 495
W32/Ska9.16% 463
Class8.55% 432
W97M/Marker8.29% 419
W95/CIH6.87% 347
Pri5.44% 275
XM/Laroux3.19% 161
Npad2.47% 125
Concept1.92% 97
Tristate1.86% 94
Temple1.74% 88
Melissa1.58% 80
Appder1.35% 68
Munch1.31% 66
Footer1.03% 52
CopyCap0.71% 36
Form0.47% 24
Walker0.46% 23
AntiEXE0.44% 22
Parity_Boot0.42% 21
Proteced0.38% 19
Papa0.32% 16
HLLC.45050.3% 15
Ravage0.28% 14
PSD0.24% 12
ShowOff0.22% 11
Wazzu0.18% 9
AntiCMOS0.18% 9
DelCMOS0.16% 8
Chack0.14% 7
Ripper0.14% 7
Beryllium0.14% 7
V-Sign0.12% 6
Nono0.12% 6
Groov0.12% 6
Eco0.1% 5
Stat0.1% 5
Die.Hard0.1% 5
Stoned.Angelina0.1% 5
DZT0.1% 5
Suck0.08% 4
W32/Cheval0.08% 4
Lunch0.08% 4
One_Half0.08% 4
Jumper0.06% 3
Junkie0.06% 3
W95/Marburg0.06% 3
Kenya0.06% 3
Sugar0.06% 3
W95/Hazlo0.04% 2
SillyC.10320.04% 2
Opey0.04% 2
Steroid0.04% 2
ZMK0.04% 2
Hark0.04% 2
Jerk0.02% 1
Scitzo0.02% 1
NYB0.02% 1
Stealth_Boot0.02% 1
Imposter0.02% 1
Natas0.02% 1
Sampo0.02% 1
Sack0.02% 1
Mentes0.02% 1
Model0.02% 1
Telefonica0.02% 1
Colors0.02% 1
Mental0.02% 1
Paix0.02% 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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