ist there a possiblity to block such tor connections? If there are solutions, what are the advices from the pfsense-team?

Here is the arcticle in english:
http://blog.emsisoft.com/2016/01/01/meet-ransom32-the-first-javascript-ransomware/

Here is the arcticle in german:
http://www.heise.de/security/meldung/Erste-Sichtung-Erpressungstrojaner-Ransom32-aufgrund-JavaScript-noch-bedrohlicher-3060409.html

Hope to get help as soon as possible.

thnx a lot.