One of the largest crackdowns on cybercriminals has led to the seizure of more than 100 servers worldwide and the shutdown of 1,300 domains, according to investigators.
The public prosecutor's office in the German city of Frankfurt and the Federal Criminal Police Office (BKA) announced the successful crackdown on Thursday morning.
"With the largest international cyber police operation to date, law enforcement authorities have dealt a significant blow to the cybercrime scene," BKA Vice President Martina Link was quoted in a press release as saying.
Malware designed for unauthorized access to others' computers for criminal purposes was removed from the web.
A total of 10 international arrest warrants were issued, and four people were provisionally arrested in an operation coordinated by German authorities. Germany has issued arrest warrants for a total of eight protagonists.
On the basis of the warrants, seven people are being sought who are "strongly suspected of having participated as members of a criminal organization for the purpose of spreading the Trickbot malware," the investigators added.
The operation on Tuesday and Wednesday targeted 16 properties in Armenia, the Netherlands, Portugal, and Ukraine.
Law enforcement officers from the Netherlands, France, Denmark, the UK, Austria and the US were involved in the operation.