The “Offline” in the name suggests it does require an internet connection to a remote KMS server after initial setup.
Common traits of such tools (including variants of KMSOffline): | Activity | Risk Level | |----------|------------| | Disables Windows Defender / real-time protection | 🔴 High | | Modifies HOSTS file to block Microsoft activation servers | 🟡 Medium | | Installs persistent scheduled tasks or services | 🟡 Medium | | Drops files in %ProgramData% or %AppData% with random names | 🟠 Elevated | | May download additional payloads (depending on source) | 🔴 High | | Telemetry / keylogging in some redistributed versions | 🔴 High | KMSOffline v2.4.5 -Ativador do Windows e do Off...
It does turn your PC into a real KMS host. It tricks Windows/Office into believing they are talking to a genuine volume licensing server. The “Offline” in the name suggests it does