This is the latest in a series of monthly charts counting down
the ten most frequently occurring viruses as compiled by Sophos, a
world leader in corporate anti-virus protection. Starting this
month, Sophos is also issuing a top ten of virus hoaxes.
For April 2002, the chart is as follows, with the most
frequently occurring virus at number one:
"The various manifestations of the Klez worm dominate April's virus
chart with variants taking up the number one, two and six slots,"
said Graham Cluley, senior technology consultant at Sophos
was the hard hitter; some commentators went so far as to call this
the biggest worm in the world ever. In reality, the success of
Klez-H is damning evidence that computer users are failing to keep
their anti-virus software up-to-date. Sophos issued protection for
which also protects against Klez-H - back in early February."
The top ten hoaxes reported to Sophos during April 2002 are as
"Virus hoaxes - emails warning of highly destructive but
mythical viruses - spread and cause havoc because users are duped
into thinking the warnings are real. In some instances, hoaxes can
be as disruptive and costly as genuine viruses," said Cluley.
"'A virtual card for
you' was first reported in December 2000, but it is still
catching users out. Introducing an anti-hoax policy will limit the
474 new viruses were discovered and protected against by Sophos
Anti-Virus during April 2002.
The total number of viruses Sophos now detects and protects
against is 73,553.
Graphics of the above Top Ten chart are available here.
about safe computing, including anti-hoax policies.
Compiled by Sophos's technical support team, the top ten chart
is collated from calls to Sophos's 24 hour, 365 days a year
technical support line.