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RE: [Full-Disclosure] MyDoom.b samples taken down

Just because some AV developers did not rush for the publicity
spotlight <snip>

Come on. As soon as an AV company discovers something new they tell the press. They love free advertising. Thus we know that the finns @ F-Secure (if I'm not mistaken) were the first ones who found the IP addresses in the Sobig.F virus. It took them 2 days instead of a few minutes had they just dumped the memory of the virus while it was running and disassembled it.

> I never analyzed the MyDoom.A or the MyDoom.B worms because I know the
> anti-virus companies already did that the very same day they got the virus.
> But from what I've read, the email sent by MyDoom.B is exactly the same one
> sent by MyDoom.A. No wonder MyDoom.B never succeeded in infecting more
> machines. Even if someone on this list mistakenly got infected by the copy
> and sent out the virus to other people it's not going to make it any more
> successful than it is because it looks exactly like MyDoom.A in your inbox.

And what made Mydoom.A _so_ successful?

There is always an element of what, for a better term, the experts
refer to as "luck".  Technically identical mass mailers suceed and fail
more or less randomly (of course, you don't see the hoards of entirely
uncessful ones we do, so you wouldn't know this.  Mydoom.B has more
chance of striking it lucky the more people run it, simply because of

This is not a case of technically similar viruses, this is a case of a two different (related) viruses using the _exact_ same email message to spread its executable code. The probabiltiy that a user clicks a MyDoom.A attachment is the exact same probability that the same user clicks a MyDoom.B attachment. The probability that a user clicks a MyDoom attachment may not be (most likely is not) the same as the probability that the same user clicks some other virus' attachment. So for MyDoom.B to be successful, it would have to get rid of all MyDoom.A emails or use a different email message.

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