Received from Trend Micro...
7/16/2007 6:53:15 PM - Proactive Notification on TSPY_KOLLAH.H - EXECUTIVE SUMMARY
Trend Micro has received several reports of a ransomware infecting systems in the North America region that we will detect as TSPY_KOLLAH.F. Ransomware is software that, when executed, encrypts word-processing, spreadsheet, and other documents for the purposes of extortion.
MITIGATING STRATEGIES
§ Trend Micro has control pattern 4.600.01 available for download at http://www.trendmicro.com/download/pattern-cpr.asp
§ Trend Micro is releasing official pattern 4.599.00 to detect this. The ETA for this to be uploaded to our ActiveUpdate servers is 7:00 PM Pacific Time
§ Please visit our virus description for updated information on this crimeware
RELATED LINKS
http://www.trendmicro.com/vinfo/grayware/ve_graywareDetails.asp?GNAME=TSPY_KOLLAH.F
http://us.trendmicro.com/us/threats/home-user/common-threats/crimeware/