Many repacks are trojans. They scan your local machine for wallet.dat files, private key text files, or browser extension wallets (Metamask, Phantom). They then exfiltrate these keys to a remote server.

, which is designed to help you recover your own keys if you have partial information like a forgotten password or a damaged mnemonic seed.

lost wallet, only use well-known, open-source tools with high community trust, such as BTCRecover