We blogged about this case in April 2010, when this trojan was being widely distributed. It would lock infected computers, showing a list of copyright infringements found from the system. It would not unlock the system unless you used your credit card to pay "fines".
E-mails leaked to Krebs show that ChronoPay was directly involved with the scam. Even the topic of the e-mail shown below is titled "icpp-online.com Fraud Rate".