How to check wallet for authenticity? Download Wallet.dat with bitcoin balance

How do I check wallet.dat for authenticity?

I think everyone has seen wallet.dat files with lost Bitcoin-QT cryptocurrency wallet passwords on sale. Often they even come with variants or password hints. With the necessary knowledge and enough computing power, one can try his or her luck at cracking wallet passwords and gaining access to bitcoins and altcoins. However, most of these files are fake. So how do you determine if a file is authentic? I will tell you about the ways to verify it.

The file itself is a Berkeley DB, which contains private keys, configuration values, address book and transactions.

For starters it is enough to search with a hex editor for the word “xingfeng” (these are the most popular fakes from China). If you found the address of this site in the code, you don’t need to go any further.

Then we put the file in the wallets folder and synchronize Bitcoin-QT. If there are balances and watch-only records, it means that the address is only for viewing and there will be no privatniks. This purse is not fake, but useless for us.

It happens that the hex editor only replaced the wallet address. Then after synchronization the old transactions and balance will appear. It seems that the wallet is real. However, if you send coins to this address (at least minimal dust), the transaction will not appear, because the address is different.

The important point is that the number of transactions in the list must match the blockchain explorers’ data. And all incoming and outgoing addresses can be found by typing in “name” in the hex editor. If there is a discrepancy in the number of transactions or in the notebook, then the wallet is fake 100%.

In old wallets, when generating a new address, several addresses are started and all of them are stored in a file, with the file size changing during synchronization. After adopting BIP32 (HD wallet) a new bitcoin address is created for each payment and keys are stored in xpriv format, file size does not change regardless of the number of generated addresses. This is also one of the ways to check. You can also check the address types (segwit or p2pkh) according to the wallet version.

If the desired wallet.dat file is opened in the Bitcoin-QT application by default, then enter the command “dumpprivkey 1LfV1tSt3KNyHpFJnAzrqsLFdeD2EvU1MK” in the console , which will return:

code 10, so you must enter the passphrase (password)
private key if the password is entered or not set, or
error “Private key for address 1LfV1tSt3KNyHpFJnAzrqsLFdeD2EvU1MK is not known (code -4)”, so the file is fake.

These are simple ways to check the authenticity of wallet.dat files. And in general, beware of questionable sites. The rules are simple: buy only from sellers with a positive history, ask for verification time, or take it via escrow. In general, scammers do not give time to check the file, they haggle or sell several files for the price of one, but… as practice shows, as soon as they get money they disappear. So be careful, and good luck!

Download Wallet.dat with Bitcoin balance

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