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This is the total count of
viruses.
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The big leap in 98 was due a
virus writer using a virus generator producing 14000+ variants.
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Percent increase has
diminished significantly. More worms,
more complex viruses, kiddies more likely using backdoor programs rather than
writing viruses. CodeRed could have
been written by a single person. But
Nimda definitely written by a group.
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Better heuristics and
generic detection. So, fewer variants
are sent into AV companies to be counted.
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Lastly, due to size and
speed considerations, we continue to improve our database by consolidating
our detections, so the database doesn't grow as quickly.
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