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Pastimes : Computer Learning
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To: thecow who started this subject1/26/2003 3:33:45 AM
From: mr.mark   of 110652
 
"A New Internet Worm

Worm Propagation Slows Internet to a Crawl

Very early Saturday morning (25 Jan 2003) global Internet traffic was dramatically impacted by the self-replicating efforts of a new Internet worm. The combined effect of the worm's aggressive, high-speed probing by tens of thousands of infected Windows machines generated traffic sufficient to congest major Internet traffic exchange points and cause worldwide problems.

Twelve hours later, though tens of thousands of Windows systems remain infected and continue attempting to infect others, the Internet's largest "backbone" carriers and ISPs are now "filtering" (blocking) the worm's replication traffic to limit its global disruption.

Personal firewall log watchers will probably have noted an increase in "probes" to port 1434. (Microsoft SQL Server's monitor port.) Each probe contains a complete copy of the worm, being sent to random Internet IP addresses by copies of the worm running within infected Windows-based computers.

Beyond the inconvenience of a slow Internet, and rapidly filling personal firewall logs, personal computer users have little to fear from this worm because it only targets and infects unpatched versions of Microsoft's SQL server, usually only present on corporate servers.

Gibson Research Corporation
grc.com
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