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It opens a random port and allows to gain remote access to the affected computer.
|Detection updated on:||April 21, 2004|
Blaster.H is a worm that affects only Windows 2003/XP/2000/NT computers. Blaster.H exploits the Buffer Overrun in RPC Interface vulnerability to spread to as many computers as possible.
Blaster.H contains a backdoor that opens a random port and listens to it, in order to gain remote access to the affected computer.
Blaster.H spreads by attacking consecutive IP addresses and exploits the vulnerability mentioned above to download a copy of itself to the compromised computer. In order to do this, Blaster.H incorporates its own TFTP (Trivial File Transfer Protocol) server.
If you have a Windows 2003/XP/2000/NT computer, it is highly recommendable to download the security patch from the Microsoft website. Click here to access the web page for downloading the patch.
Some clear indications that Blaster.H has reached the computer are the following: