According to the FBI its developers Cryptowall they have earned $18 million to date from the US alone.
The Cryptolocker family of ransomware has been characterized as one of the most productive and capable ever since it was first identified in April of 2014.
World damage caused by US service is much greater. Victims from Australia account for about half of Cryptowall's revenue, while North America accounts for a quarter.
The federal states report that the US Internet Crime Complaints Commission has received 992 complaints from ransomware victims that have been asking for ransom from 200 to 10.000 dollars.
“Many of the victims are burdened with additional costs associated with protecting their network, network countermeasures, lost productivity, legal fees, services IT, the purchase of monitoring and credit services for employees or their customers" says the FBI warning.
"Between April 2014 and June 2015, IC3 received 992 complaints about Cryptowall, with total losses of over $ 18.000.000."
"These financial fraud schemes target both individuals and businesses, and are usually very successful, as they have a significant impact on victims."
Cryptowall, like other malicious software from the ransomware family, is delivered via spam and exploit kits to encrypt that they find in front of them, hoping that some of these are valuable files. Victims must pay a ransom to regain access to their files.
Those who refuse to pay the ransom, in addition to losing their files forever, may also lose the login credentials of various accounts, as FAREIT was also recently discovered trojan to accompany Cryptowall.
