How to check wallet.dat is real or fake?
https://wallet-dat.net/how-to-check-wallet-dat-is-real-or-fake/ How to recognize if the wallet.dat file is fake?
1. Use the hex editor and try to find the word xingfeng (these are wallets made long ago by craftsmen from China). If you find this word in the code, its a fake.
2. Then go to the folder wallets insert the wallet.dat file (the one you want to check) and run the Bircoin core or Litecoin core and synchronize. If you see watch-only, it means that these balances are only for viewing and there are no private keys.
They can also change only the wallet address. In this case, old transactions and balances appear. Creates the appearance of a real wallet. If you send any transaction to this address, you wont see it in your wallet, because the real address is different.
3. Also, the transactions in the blockchain and in the wallet must match. You can find addresses for sending and receiving by searching for the word name in the hex editor or simply by viewing all transactions in the Bitcoin core or Litecoin core. If the transactions do not match, then the wallet is also fake.
4. In old versions of Bitcoin core and Litecoin core wallets, when creating a new address, several addresses are created, all these addresses are stored in the wallet.dat file and the file size changes.
5.After introducing BIP32 (HD Wallet) a new address is created for each send and the keys are stored in xpriv, and the wallet.dat file size does not change regardless of the number of addresses. You can also check the address types (segwit or p2pkh) depending on the wallet version they are different.
6. In Bitcoin core or Litecoin core enter the following command in the console: dumpprivkey 1LfV1tSt3KNyHpFJnAzrqsLFdeD2EvU1MK,e Code 10 (or 13), which means you must enter a passphrase (password).
Error: Please enter the wallet passphrase first with the wallet passphrase. (code -13).
Private key if password is entered or not set
Private key for address 1LfV1tSt3KNyHpFJnAzrqsLFdeD2EvU1MK unknown (code -4) error, which means that the file is fake.