Hackers Exploit AnySign4PC via Hacked Korean Sites to Install Backdoors Without Prompts
Hackers Exploit AnySign4PC via Hacked Korean Sites to Install Backdoors Without Prompts
30 July 2026
South Korean authorities and four security firms have disclosed a state-sponsored campaign that compromised trusted domestic websites. The attackers used those sites to exploit locally installed financial-security software and infect targeted visitors with SIGNBT or COPPERHEDGE backdoors.
A compromised page could infect a system running a vulnerable AnySign4PC version without a prompt or