Text only virus

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Text only virus
: Some time ago I received a joke by e-mail
about a lazy virus that asked the user to forward the e-mail to all
his friends and delete it’s entire hard disk afterwards.
Today I received this e-mail, claiming that the person that sent
the e-mail had a virus and was checking if any of his contacts got
infected too. The e-mail had some simple instructions for the
receiver:

  • Find a particular file (a Windows system file).
  • Delete that file.
  • If the file existed then forward the e-mail to all your
    contacts so they can check if they have the virus.

And there you have it, a text only virus!!! And the most
amazing thing is that given the amount of e-mails of this type I
received today it works better than real virus.



Learning GSM (part 2)

Day 2 of my href="http://www.andrerestivo.com/weblog/archives/001932.html">GSM
lessons. Whenever I think things are making sense I discover
another problem GSM has to deal with. No wonder so many calls get
lost. Just so you can get an idea, href="http://www.andrerestivo.com/weblog/archives/gsmoppsett.html"
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this diagram is a part of what happens when someone from a
external network calls a mobile phone (just the call setup phase).

In the next few days I’m going to learn some GPRS and UMTS (they
told me it gets even more complicated).