A new ransomware called CryptoLuck has been discovered by Proofpoint security researcher and exploit kit expert Kafeine
that is being distributed via the RIG-E exploit kit. While it has become common to see new ransomware variants being distributed daily, it is not as common to find new ransomware infections being distributed via exploit kits. Seeing this type of activity typically indicates that a particular ransomware will see much wider distribution and thus a larger amount of victims.
CryptoLuck also utilizes an interesting method of infecting a victim through the legitimate GoogleUpdate.exe executable and DLL hijacking. Once infected, a victim's data will be encrypted and then be given a 72 hour countdown to pay a 2.1 bitcoin, or approximately $1,500 USD, ransom payment.
More details about this ransom can be found here: CryptoLuck Ransomware being Malvertised via RIG-E Exploit Kits