SilverFox: Tracking the Distribution of a Domestic Variant of a Malicious Installation File Posing as KakaoTalk
The threat actor used SEO poisoning (a technique that exploits search results to redirect users to fake sites) to distribute a malicious installer disguised as a KakaoTalk installer. The appearance and packaging method of the installer changed continuously, and the threat actor sequentially used NSIS, Advanced Installer, and Inno Setup.
