The joint anti-cybercrime operation showed various types of malware, such as those targeting financial institutions, spreading ransomeware, launching Distributed Denial of Service (DDoS) attacks and distributing spam were among threats posed by the infected servers.
The operation also discovered nearly 270 websites infected with a malware code, including several government websites that may have contained citizens’ personal data.
Interpol said the operation was participated by experts from seven private firms, while China provided some cyber intelligence.
It was carried out after Singapore’s Ministry of Defence was attacked by hackers this year, causing personal details of 850 national servicemen and staff being stolen. The ministry described it as a “targeted and carefully planned” attack.