USB Helper’s source code (leaked v0.6.1.610) contained hardcoded strings:
"titlekey":"D7B04F6A8E3C2A1F9B8C7D6E5F4A3B2C" Wii U Usb Helper Change Title Key Site
"data":"U2FsdGVkX1/abc123..." Without the shared secret or the ability to decrypt the payload, USB Helper was rendered nonfunctional. This paper is for educational and historical documentation purposes only. It does not condone copyright infringement. USB Helper’s source code (leaked v0
GET https://titlekeys.ovh/v1/titlekey/000500001017F100 HTTP/1.1 Host: titlekeys.ovh Wii U Usb Helper Change Title Key Site