Date: 09/07/2004 by Thejesh GN Issue: 28
Let’s dissect a virus? --1
Virus is a piece of code which can spread, protect itself from detectors and do its duty silently. Well the duty differs from virus to virus depends on the intensions of coder. It may vary from harmless displaying of a popup to deleting all files on your drive. The possibilities are wide open and the limitation is your (??) imagination.
Most of the virus which I have seen or heard is written for windows. Usually coded in C or VB script. But you can find the virus batch program too. Macro viruses are written in VB script which is shipped along with Office suite. Ultimately the choice depends on what virus should do.
The virus may have the following characteristics:
So doesn’t it match the biological virus? They too have the danger of getting eliminated by user or detectors. ‘Survival of Fittest’ applies here too. They should be able to survive and grow in hostile conditions. They should improve/evolve continuously to survive.
Let’s see a code example in the next issue. Have any ideas mail me.
Java Expert Java magazines.
www.javaranch.com . They have magazine too but they post it on their web site once a month. But they post a mail when ever an edition is released.
Another very good java magazine which I am following is JavaSpecialists’ Newsletter. You can subscribe to it at http://www.javaspecialists.co.za. All previous issues are available online.
Linux Tips History substitution.
The result will show all the commands which you have run. You can rerun a command in the history file by typing
$ r 1 # for Korn shell or
$ r: !1 # for c shell
The no (here 1) is the no associated with the command in the history file which you want to rerun.
If you have any tips and like to share it. Then send it to my e-mail id.
Editors Note: TechMag completes one year.
I am very happy inform you that TechMag is one year old now. It all started on one boring day 25th June 2003, I initially sent it to few of my friends. When the list of receivers started growing I thought it’s easy to maintain if I have a list hence I created group in Yahoo. Now we have around 70 subscribers and still growing. Thanks to all TechMag readers. Keep sending your mails.
Thanks and rgds,
DISCLAIMER: The ideas expressed in this newsletter are solely mine. While stating this I do not represent anybody.
The articles presented in this magazine are only for educational purpose. And you can use at your own risk.