You may have installed the 'VSearch' trojan. There is no need to download anything to solve this problem.
Kaspersky vs Windows Defender: Who is the Ultimate Front-runner? Although Windows Defender is a smart choice as it offers the ground-rules, it cannot outshine Kaspersky which brings next-level, exceptional protection to life by maximizing the system performance so that you don’t have to wait for the program to respond.
In macOS High Sierra (10.13), Mojave (10.14) and Catalina (10.15), Bitdefender Endpoint Security for Mac uses system extensions (also known as kernel extensions) to ensure protection cannot be tampered with and to provide Content Control and Device Control functionality.
House Defender Mac OS By 819cinisce-zuxe Follow | Public