W32/MSNworm.EI.worm, which spreads via the MSN Messenger and displays a funny picture of a little pig sending you a kiss while it is infecting your computer.

MSNworm.EI is a worm whose main objective is to spread and affect as many computers as possible. The means it uses to spread is the instant messaging program MSN Messenger.

Additionally, it downloads the backdoor detected as IRCBot.BWB to the affected computer. The variants belonging to the IRCBot family are designed to connect to several IRC servers and receive remote control commands.

MSNworm.EI is easy to recognize, as it reaches the computer via the instant messaging program MSN Messenger, in an instant message which contains a file.

When the file is run, the following image is displayed:

source: www.pandasecurity.com | pandalabs.pandasecurity.com