An essential online service for scanning suspicious .rar files against dozens of antivirus engines simultaneously. Private Scanning - VirusTotal documentation

Users can use tools like WinRAR to test the archive for corruption before extracting.

Many versions allow users to upload "configs" (.loli or .ini files) that tell the software exactly how to interact with a specific website's login page. Technical & Security Considerations

A popular open-source "All-In-One" style tool that uses custom configs to perform automated web requests.

Because these utilities are often shared on community forums, it is standard practice to run the file through a multi-engine scanner like VirusTotal to check for embedded malware or "stealers."

Enables the user to route traffic through different IP addresses to avoid being blocked or rate-limited by the target website.

Allows the program to perform hundreds of "checks" simultaneously, significantly increasing the speed of data processing.