A benevolent script simply modifies the hosts file. A malicious one—and many are, or become, through compromised maintainer accounts—can install a keylogger, enroll the machine into a botnet, or deploy ransomware. The attacker’s logic is impeccable: they have self-selected a target who has already demonstrated a willingness to bypass security protocols and intellectual property laws. This user is less likely to report the crime (who complains to the police about malware on a pirated IDM?), and more likely to have disabled antivirus real-time protection to run the script.
One of the most famous repositories is the "IDM Activation Script" (IAS). This script uses a more advanced method to activate IDM permanently using a registry key injection. idm activation script github
Generates valid-looking registry entries by triggering dummy downloads. Locks those keys A benevolent script simply modifies the hosts file