Coordinated by the FBI, raids were made in the United States, Britain and six other countries.
Money was made from the sale of software that cost find security risks in the PC and then asked for money to solve problems do not exist.
The raids have seized 40 computers used to make false and scans the websites that host the deceived people with the software.
Approximately one million people are supposed to have installed the fake security software, also known as scareware, and delivered up to $ 129 for your copy. Anyone who has not paid, but who have downloaded the code has been bombarded with pop-ups warning about security problems reported.
Raids in Latvia in connection with the attack on the mob allowed the police to take control of five bank accounts used to channel cash to the donor group.
Although no arrests are believed to have occurred during the raids, said the FBI seized computers would be analyzed and the investigation would continue.
The attacks were part of a gang of international effort, called Operation Trident Court. A total of 12 shocks Nations was to suppress two separate bands scareware store.
The other gang multiple ads to attract victims. The Latvian police raids on the gang led to the arrest of Peteris Sahurovs and Marina Maslobojeva who claimed to be its operators.
The FBI worked mated their scams pretending to be an advertising agency that wanted to put ads on the site of the Minneapolis Star Tribune newspaper.
Once the ads began running, the couple would have changed is the installation of rogue security software on machines that mimic the victims of the infection. The payment of a known infection rate has been cured. Those who do not pay your machine is unusable until it was delivered cash.
This trick is believed to have generated a return of about 2 million dollars.
"Scareware is just another tactic that cyber criminals use to take money from citizens and businesses worldwide," said Vice President Gordon Snow of the FBI Cyber Division in a statement.