Police in South Korea recently arrested 33 hackers who used a DDoS program to cheat online poker players out of 55 million won, roughly $45,265, during a six-month period, according to Korean English-language newspaper JoongAng Daily.
The Cyber Terror Response Center in South Korea said the hackers, led by a 30-year-old and a 29-year-old, used a DDoS attack to infect 11,000 computers across the country.
According to police, one offender bought the Netbot Attacker program from a Chinese hacker last year, then sold copies online to others. The hackers then broke into the administrative systems of the PC rooms and installed the virus in their computers to allow them to see the hands of poker opponents.
Netbot Attacker is one of the programs that attacked Korea’s major websites in 2009, slowing down connection speeds throughout the country and disabling the major sites for nearly a week. Recent versions of the program update too fast for security programs to keep up with them, but attempts to control DDoS attacks have inflated the price of the program from 3 million won to 15 million won in the last year.