Virus Prevalence - December 2001

Virus NamePrevalencePercentageInstances
W32/BadTrans65.9% 13304
W32/Magistr11.38% 2297
W32/SirCam8.12% 1639
W32/Aliz5.2% 1049
W32/Goner2.38% 480
W32/Hybris2.01% 406
W32/Nimda1.46% 295
W32/MTX0.47% 95
W32/Klez0.39% 79
XM/Laroux0.34% 68
VBS/Haptime0.23% 47
JS/Kak0.2% 40
Tam0.2% 40
W32/Ska0.09% 19
W32/Kriz0.08% 16
W32/Shoho0.08% 16
VCX0.08% 17
W95/CIH0.08% 16
W32/Funlove0.07% 14
W32/Zoher0.07% 15
W32/Maldal0.07% 15
W97M/Marker0.06% 12
Divi0.06% 12
VBS/LoveLetter0.05% 11
W32/Elkern0.05% 10
W32/Bymer0.05% 11
W32/Gokar0.05% 11
Melissa0.05% 10
W32/QAZ0.05% 10
VMPCK0.05% 10
WYX0.04% 9
Cap0.04% 9
W95/Spaces0.04% 9
Form0.03% 6
W32/Pretty0.03% 6
Nsi0.03% 6
Tristate0.03% 7
W32/Navidad0.03% 6
Class0.02% 4
W97M/Thus0.02% 5
VBSWG0.02% 5
W32/Msinit0.02% 4
Titch0.01% 3
W97M/Ethan0.01% 3
Solaris/Sadmind0.01% 2
Service0.01% 2
Parity Boot0.01% 2
Barisadas0.01% 2
W32/NRG0.01% 2
Grate0.01% 2
W32/Abotus0.01% 2
ColdApe0.01% 3
Ded0.01% 2
AntiCMOS0.01% 2
Baboon0% 1
Titasic0% 1
RDA-Fighter0% 1
W95/Lovesong0% 1
Footer0% 1
W32/Stall0% 1
Pri0% 1
W32/Chic0% 1
W32/Marie0% 1
W32/BleBla0% 1
Eight9410% 1
Wazzu0% 1
Murke0% 1
Myna0% 1
Mac/Autostart98050% 1
Yankee_Doodle0% 1
W97M/Verlor0% 1
Stages0% 1
Zerco0% 1
W32/Hai0% 1
Walker0% 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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