Historically, "WPAKill" (specifically HackTool:Win32/Wpakill.B ) was a tool used to bypass Windows Product Activation (WPA) on older systems like Windows XP and 7.
While "Exclusive" may be a marketing term used by underground sites, the technical mechanisms behind disabling WPA/WPA2 are well-documented: wpa kill exclusive
Tools may exploit the KRACK (Key Reinstallation Attack) vulnerability, which targets the four-way handshake of WPA2, allowing an attacker to decrypt traffic or inject malicious data. Historically, "WPAKill" (specifically HackTool:Win32/Wpakill