Robert Morris, a
doctoral student at Cornell University, wrote one of the first
computer viruses that spread itself via a network. When released,
the virus would target VAX and Sun machines. Unlike some of
today’s viruses, it was not designed to cause harm to the
computer: when a computer was infected, the virus would duplicate
itself every 90 seconds. This caused the computers to eventually
slow down or crash as the number of virus processes running in the
background increased. During this period, the virus would scan for
other computers connected to the network and look for security
holes in the OS and networks that it could bypass to infect another
machine. It also used the send mail protocol to send infected
emails from the host computer.
The virus caused 60,000 computers, including those of military and
research installations, across the US to be shutdown, causing quite
few heads to turn. The virus pointed out a number of security holes
in the UNIX OS that had been discarded as being non-threatening.
The worm also reiterated the importance of logs. Quite a few people
were not able to find a solution to the problem since they did not
maintain logs and there didn’t know how they were getting
infected.
When system administrators started discovering that the virus also
used send mail protocol to send out infected emails, they shut down
the mail servers to stop spreading of this dangerous computer
virus. This caused more harm that good since the virus had other
methods of attack and doing so only delayed a chain mail doing the
rounds that explained how to remove the virus from reaching
affected users.
How to remove “The Morris
Worm”
1.The Morris Worm directly comes through emails in the form .zip
folders, so it’s better to delete all .zip folders that were
on the computer.
2.The virus has a unique feature of spreading for every 90 seconds;
every folder will have .exe folders installed which is virus. Scan
the computer with Malware or Spyware software and remove the
virus.
3.It’s always good to disconnect the computer from Internet,
since it copies all the information/data from your computer and
keeps sending emails to a hidden email address.
4.Collect all your important files and documents make sure there
were no .zip files and no .exe folders. Reinstall the entire OS:
Don’t repair the OS.
5.If the computer is connected in a LAN, WAN networking system,
disconnect the computer from the remaining network. Because the
virus spreads more quickly in networking.
The Morris Virus –
History
Since its identification in 1988, it
has taken 7 years of full-time research to identify how to remove
the virus from a computer or a network. For making this code Robert
T Morris, Jr. a Cornell University student was sentenced for three
years under Computer Fraud and Abuse Act. In the history of
computer worms/virus “The Morris Virus” is termed as
the Malware that changed the world.
~Sandeep Seeram
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