This seems to be the Backdoor.Win32.IRCBot.aaq Worm and the removal instructions can be found here:
http://www.bullguard.com/support/tech-guides/how-...wormsedoubota.aspx
Sophos:
http://www.sophos.com/security/analyses/w32ircbotvr.html
edit:
Seeing that the message you got was "Please look at me and my pet", this actually seems to be another variant of the Win32.IRCBot worm.
http://www.avira.com/en/threats/section/fulldetai...rcbot.52736.4.html
http://www.prevx.com/blog.asp?ID=56
http://www.cisrt.org/enblog/read.php?133
Actually, this worm should be detected by most anti-virus softwares, so I suggest you install one if you don't have one installed already..
And always ask your contact when they send you files, don't just accept and open them. (too late now anyway, but remember it for the future
)