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Chris
** New Trojan Threatens New Denial-Of-Service Attacks
More than 800 computers have been infected with the SubSeven
Defcon8 2.1 back-door virus, according to Internet Security
Systems Inc. This virus, known as a "Trojan horse," is spreading
rapidly and has the potential for widespread damage, prompting the
security firm to rate its threat at level 4. A rating of 5 is most
dangerous.
The Trojan has been distributed on Usenet newsgroups with various
file names, including SexxxyMovie.mpeg.exe. According to ISS,
hackers are using infected systems to test new distributed denial-
of-service attack methods and strategies. This program points to
the growing use of back doors and denial-of-service attacks by
hackers.
"Over the past couple of months, we have noticed a dramatic
increase in the number of 'zombies' waking on our systems," says a
security manager who requested anonymity. "Based on the activity
we've seen here, I'm certain we're on the cusp of seeing another
wave of attacks."
Chris Rouland, am ISS research director, agrees that more attacks
are imminent. "This is a bellwether sign of the state of Internet
security," he says, adding that distributed denial-of-service
developers are becoming more sophisticated. "They've developed
this so that it can't be detected by antivirus software. And we
are seeing more of these Trojans take advantage of communications
through IRC and use encryption to make them more difficult to
detect," he says. "No one knows for sure, but it would be
reasonable to think that there will be DDOS attacks against
E-commerce sites during the holiday season." - George V. Hulme
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