A user on BleepingComputer reported that after running an old KRT Club variant, his Kaspersky turned into a “hollow” shell (no protection), and ransomware encrypted his Documents folder two weeks later. The tool had disabled Kaspersky’s self-defense permanently.
: The tool typically automates the process of removing traces of the old license from the Windows registry, which is necessary to trick the software into seeing a "new" installation. Self-Defense Bypass