Panda Software Warns Of The New Worm Mydoom.P

Panda’s New TruPrevent Technologies combat viruses and intrusions have also detected and blocked Mydoom.P, without having a signature file

PandaLabs has detected the presence of Mydoom.P, a new variant of the well-known Mydoom worm. Incidents involving this new variant have already been reported.

Mydoom.P spreads via e-mail using its own SMTP engine. Mydoom P opens the notepad (which is empty). Mydoom.P might arrive with any of the following subjects:

SN: New secure mail
Secure delivery
failed transaction
Re: hello (Secure-Mail)
Re: Extended Mail
Delivery Status (Secure)
Re: Server Reply
SN: Server Status

Posible attachment file names are: mail, message, attachment, transcript, text, document, file, readme. It can arrive with the following extensions: .exe, .zip, -txt.exe, -htm.exe y -txt.scr. More details of the messages that Mydoom.P uses are available from Panda Software’s virus Encyclopedia at

PandaLabs detected this new variant using Panda Software’s new TruPrevent Technologies which detected and successfully blocked MyDoom.P as well as Mydoom.N, without prior knowledge of the malicious code. TruPrevent Technologies complement traditional antivirus, as they are capable of detect and block the unknown viruses, like MyDoom.P, using behavioural analysis and can be used alongside of other companies antivirus solutions.

To prevent incidents involving Mydoom.P, Panda Software advises users to take precautions and update their antivirus software. Panda Software has made the corresponding updates available to its clients to detect and disinfect this new malicious code.

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