Trojan.Ransom (porno-rolik.avi.exe)

This trojan blocker ( MD5: b4c9c916df4948cd4599d01bf051d501 ) prevents all software execution.
To remove the Trojan (and unlock windows), infected users need to enter a valid serial number.
According to VirusTotal this ransomware is detected by just one Antivirus: http://www.virustotal.com/file-scan/report.html?id=0eb6130128d0651845970aafa2995dbebdfd75a0351b6f5bc37d31e1afd67e6b-1308818635

Number to Call: 9032805988
Number to Call: 9651895797
Number to Call: 9651895304
Number to Call: 9651895594
Code to unlock Windows: MAXXX

Pornoplayer variant.
Already noticed on the past: here (28 May 2k11) ~ here (4 Jun 2k11) ~ here (9 Jun 2k11) ~ here (11 Jun 2k11) ~ here (12 Jun 2k11) ~ here (12 Jun 2k11) ~ here (13 Jun 2k11) ~ here (20 Jun 2k11) ~ here (21 Jun 2k11) ~ here (21 Jun 2k11) ~ here (21 Jun 2k11) ~ here (22 Jun 2k11)