introduction
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worms and viruses
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costs
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who's responsible?
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solutions
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references
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CS201 Final Project
Neil Chou
Jiayi Chong
Chee Hau Tan
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Current measures and their effectiveness
Windows machines are scanned by ITSS whenever they are connected to the
network. The scanning process checks to see if the current machine is
vulnerable to various worms and viruses. If it is detected to be
unpatched, the network connection of the machine is cut-off within
minutes. This has proven to be effective in slowing the propagation of
worms and viruses. However, it is not a bullet-proof solution since it
does not scan for unknown vunerabilities.
Campus servers running different flavors of Unix and Linux operating
systems have also been compromised. The raptor and firebird linux servers
in sweethall are routinely updated with the latest patches. They also run
a security-enhanced version of Linux called SULinux(a version of Redhat
Linux modified by Stanford University staff). Despite all the precautions
and patching done to such systems, they still got broken into early this
year. The intruders replaced several system programs with their own and in
a few cases installed network sniffer programs that captured a large
number of account/password combinations.
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