What is W32.Mydoom.F@mm and how does it affect me?
The W32.Mydoom.F@mm is a mass-mailing worm that opens a backdoor on TCP port 1080 that can download and execute arbitrary files. It Will perform a Denial of Service (DoS) against
www.microsoft.com and
www.riaa.com, if the computer's local system date is between the 17th and 22nd of any month.
It also sets up a backdoor in an infected system by opening TCP port 1080. This could allow an attacker to connect to a computer and use it as a proxy to gain access to its network resources.
The worm arrives as an attachment with the file extension .bat, .com, .cmd, .exe, .pif, .scr, or .zip. The From: line of the email may be spoofed.
Symantec Security Response has developed a removal tool to clean the infections of W32.Mydoom.F@mm and earlier variants of this threat.