Security researchers from Symantec have been monitoring CryptoDefense, a piece of ransomware thats similar to the notorious CryptoLocker. Based on the Bitcoin addresses and blockchain information, experts estimate that CryptoDefense earns cybercriminals as much as $34,000 / 25,000 per month. CryptoDefense is a relatively new piece of ransomware. It appeared in late February 2014, but Symantecs products have already blocked over 11,000 unique infections. Infections have b…