• W32.Mydoom.M[O] aka Mydoom.M[O]: uses its own SMTP engine to send itself to all the email addresses that it finds. Attachment extension is .bat, .cmd, .com, .exe, .pif, .scr, or .zip. Possible second extension is .doc, .txt, .htm, or .html. Drops and executes a backdoor, that listens on TCP port 1034.
  
  Check out the Latest Worms (MS) page.

W32.Mydoom Family

• W32.Mydoom.M[O] aka Mydoom.M[O]: uses its own SMTP engine to send itself to all the email addresses that it finds. Attachment extension is .bat, .cmd, .com, .exe, .pif, .scr, or .zip. Possible second extension is .doc, .txt, .htm, or .html.
  
  Check out the Latest Worms (MS) page.

W32.Mydoom Family

• W32.Beagle.AG[AH/AI] aka Bagle.AG[AH/AI]: attempts to spread using email. Opens a backdoor on an infected computer [TCP 1080]. Tries to delete security software processes and settings in the registry.
  Check out the Latest Worms (MS) page.

W32.Beagle Family

• W32.Beagle.AB[AF] aka Bagle.AB[AF]: attempts to spread using email. Opens a backdoor on an infected computer [TCP 1080]. Tries to delete security software processes and settings in the registry.
  Check out the Latest Worms (MS) page.

W32.Beagle Family