Five men in South Korea were arrested on Thursday for illicitly injecting crypto mining malware into more than 6,000 computers.
The crime, so-called as cryptojacking, involved a malware in the form of code which exploits the PCs as zombie PC for virtual currency mining.
The Cyber Security Bureau of the National Police Agency stated in an official statement that four of the suspects have been apprehended. As per the reports only a single name Kim, who is just 24 years old, disclosed as of now.
They released 32,435 emails containing cryptocurrency mining malware targeting desktop users in South Korea, in a period of two months from October to December in 2017, the group of hackers sent messages containing malware to tens of thousands of job applicants, posing as employers.
Despite the scale of the attack, they were only capable of generating around $1,000 in profit. According to a statement from local police and the National Police Agency’s Cyber Security Bureau, “Security vendors quickly responded to the spread of malicious code, and revenue was not very high.
Most of the cases were detected by (anti-virus software) after mining for 3-7 days. When it was detected, it sent another malicious code again, but soon it was detected again by the (anti-virus software)”.