forgot bitcoin core wallet password

[shelby0930]

Hi guys,

I recently found my bitcoin core wallet dat file synchronized in my old google drive and when i check the balance it has 9 btc the wallet is from 2012. i tried all my passwords but im still not able to figure out the password is there a way to crack the password..?? if someone here can help me crack the wallet i can split the 9btc 50/50 deal someone please help me..!!

regards
shelby0930

[OmegaStarScream]

There are some tools to do that, but since I'm not really that knowledgeable on that, I'll suggest WalletRecoveryServices[1]. They're reputable, you can look them up online and see the reviews and they'll only take 20% if they manage to crack the wallet for you. Obviously, though, this is not going to work unless you have an idea about what the password might be (length, complexity).

[1] https://www.walletrecoveryservices.com/

[ABCbits]

is there a way to crack the password..??

If you have decent GPU or willing to buy/rent one, you could use btcrecover[1] to crack it. In case you wondering why i mention GPU, it's due to huge speed boost for cracking Bitcoin Core wallet[1].

if someone here can help me crack the wallet i can split the 9btc 50/50 deal someone please help me..!!

Please be careful with offer to "help" from Personal Message, especially if they directly ask for your wallet.dat file. If you want someone else to do it, i also recommend service mentioned by @OmegaStarScream.

[1] https://github.com/3rdIteration/btcrecover
[2] https://btcrecover.readthedocs.io/en/latest/GPU_Acceleration/

[Minase]

do you remember something about password? length? characters used?
if the length is above 12 chances are slim to none
//edit
if you have any clue about password and want a little help to crack the password just drop me a PM.
You can extract wallet password hash using bitcoin2john

[o_e_l_e_o]

First thing to do is to make a back up of your wallet.dat file so you are not working on your only copy.

I would also suggest using btcrecover to attempt to crack this. You can follow the installation and usage guide here: https://btcrecover.readthedocs.io/en/latest/. IF you run in to trouble then post publicly in this thread and we can help.

Regardless of how you choose to progress though, the whole process will hinge on whether or not you have any idea of what the password could be. Is it likely to be a variant on a password you know, or is it likely to be something completely different? Do you have any idea if it follows some kind of structure, or would it just be completely random characters? How long might it be? Does it include lowercase letters, uppercase letters, numbers, symbols, etc?

Depending on how complex the password is, it could be crackable in a matter of minutes or it could be impossible to crack even in millions of years.

[DaveF]

Well according to the OP he has access to massive amounts of computing power:

Hello guys,

I wanna team up with people wo believes in team work than goin solo in here to solve at least 2 puzzles, you write the code and i have resource to run i have 16 tesla A100 gpus with it we can scan unto 23 TKey/s i'm not a great programmer but i have resources like Steve jobs always said what a team can achieve an individual cannot achieve. i look forward to making a team a great one

So he found an old wallet while working on one of the bitcoin puzzles that are posted.
I think we are missing something.

-Dave

 

[shelby0930]

Well according to the OP he has access to massive amounts of computing power:

Hello guys,

I wanna team up with people wo believes in team work than goin solo in here to solve at least 2 puzzles, you write the code and i have resource to run i have 16 tesla A100 gpus with it we can scan unto 23 TKey/s i'm not a great programmer but i have resources like Steve jobs always said what a team can achieve an individual cannot achieve. i look forward to making a team a great one

So he found an old wallet while working on one of the bitcoin puzzles that are posted.
I think we are missing something.

-Dave

 

you are right i still have access to it, its an aws instance i do 3d modelling for a living so i require such configurations but the dat file i found it on my google drive a couple of days ago tried importing it in a bitcore wallet it asks for password even to generate a new receiving address

[DireWolfM14]

Well according to the OP he has access to massive amounts of computing power:

Hello guys,

I wanna team up with people wo believes in team work than goin solo in here to solve at least 2 puzzles, you write the code and i have resource to run i have 16 tesla A100 gpus with it we can scan unto 23 TKey/s i'm not a great programmer but i have resources like Steve jobs always said what a team can achieve an individual cannot achieve. i look forward to making a team a great one

So he found an old wallet while working on one of the bitcoin puzzles that are posted.
I think we are missing something.

-Dave

 

you are right i still have access to it, its an aws instance i do 3d modelling for a living so i require such configurations but the dat file i found it on my google drive a couple of days ago tried importing it in a bitcore wallet it asks for password even to generate a new receiving address

I think you're missing Dave's point: I believe he finds your story suspiciously reminiscent of the many, many newbies who come here claiming to have found an old wallet, on an old hard drive from an old laptop that got clogged with semen and stopped working sometime in 2007, or 2008.  And has 10K bitcoin on it.  Frequently these newbies offer very generous rewards for help cracking the password.  The thought occurred to me, too.  The only thing that doesn't fit the pattern is the "modest" 9BTC, so maybe you're not a schmuck who found a fake wallet on the internet and thinks he just struck it rich. 

If you are being honest; as others have mentioned, btcrecover is your best bet.  Especially if you have a desktop with a pair of fast GPUs and you can remember part of the password.  If you don't have a fast desktop with a pair of fast GPUs, buy one.  It'll cost much less than the $130k reward.

[BitMaxz]

How exactly did you check the wallet.dat file balance?

If you check the wallet.dat file through the newly installed Bitcoin core there is a possibility that the wallet is showing a balance while the core is syncing and not fully synced yet?
If you can post the BTC address of that wallet.dat file we can check it on Block explorer to make sure you are not bluffing.

There are lots of newbies here telling that they found a wallet.dat with a large amount of BTC but most of them are bluff and they mostly created a thread for hunting merits.

Why not use the recovery service which is already posted by OmegaStarScream?

[shelby0930]

How exactly did you check the wallet.dat file balance?

If you check the wallet.dat file through the newly installed Bitcoin core there is a possibility that the wallet is showing a balance while the core is syncing and not fully synced yet?
If you can post the BTC address of that wallet.dat file we can check it on Block explorer to make sure you are not bluffing.

There are lots of newbies here telling that they found a wallet.dat with a large amount of BTC but most of them are bluff and they mostly created a thread for hunting merits.

Why not use the recovery service which is already posted by OmegaStarScream?

even i don't understand that ill post a video of my wallet.. its fully synchronized wallet and it shows balance. it shows balance even when i do getbalance and getbalances on the console but if i go to the blockchain to look up it shows 0  here's the video https://www.veoh.com/watch/v142199711cTqnb2Bd  please help me

[o_e_l_e_o]

While your node is up to date with latest blocks, your wallet is out of sync. This is normal when you recover a wallet from a back up.

If you look at your wallet, the last transaction it shows is in 2012. If you look up the address on a block explorer - https://mempool.space/address/1MSHHa7vC3zKGAvZ1LuS7tvBKe58wtZbsr - you'll see two transactions since then: A deposit of 0.025 BTC in 2020, and then a withdrawal of the full balance of the wallet (9.8351537 BTC) in 2021.

Use the command rescanblockchain to sync your wallet with the latest blocks and I'm afraid the balance will then disappear.

[shelby0930]

While your node is up to date with latest blocks, your wallet is out of sync. This is normal when you recover a wallet from a back up.

If you look at your wallet, the last transaction it shows is in 2012. If you look up the address on a block explorer - https://mempool.space/address/1MSHHa7vC3zKGAvZ1LuS7tvBKe58wtZbsr - you'll see two transactions since then: A deposit of 0.025 BTC in 2020, and then a withdrawal of the full balance of the wallet (9.8351537 BTC) in 2021.

Use the command rescanblockchain to sync your wallet with the latest blocks and I'm afraid the balance will then disappear.

08:57:06

rescanblockchain


08:57:06

Can't rescan beyond pruned data. Use RPC call getblockchaininfo to determine your pruned height. (code -1)

[o_e_l_e_o]

You're running a pruned node, which means your client does not store the data for all blocks and so cannot scan older blocks to find these transactions. If you wanted to get this wallet properly synced, then you need to disable pruning and re-download the entire blockchain so you are running a non-pruned node, and then import the wallet and rescan.

However, none of that will change the fact that this wallet file is empty, which you can see on any block explorer.

[Alicatraz]

Hi , you can create a password hash , and send it for cracking , do not send your wallet file to anyone

[NotATether]

Hello guys,

I wanna team up with people wo believes in team work than goin solo in here to solve at least 2 puzzles, you write the code and i have resource to run i have 16 tesla A100 gpus with it we can scan unto 23 TKey/s i'm not a great programmer but i have resources like Steve jobs always said what a team can achieve an individual cannot achieve. i look forward to making a team a great one

There's no reason to be attempting to run two compute jobs at the same time, you'll just double the amount of time it takes to recover either of them.

HashCat *does* support your GPUs for finding passwords of a wallet.dat. So you should try that first.

I kind of wish that Bitcoin Core merges the (C++ version of the) Bitcoin2john script as a cmdline argument when you quickly want to get the hash of a file.

[Welsh]

Based on o_e_l_e_o's findings, you either withdrew the Bitcoin back last year, which I'm sure you would've remembered doing or the wallet was compromised. Being on your Google Drive, I'd probably assume that's also compromised if the latter is the case. Could also be malicious programs running on your machine or at least at the time the wallet was last accessed. Though, I wouldn't know enough about your exact circumstances.

If the password was simple enough to bruteforce or you stored other compromising information on your Google drive, and that was compromised it's not too far fetched to assume it was hacked that way.

Hi , you can create a password hash , and send it for cracking , do not send your wallet file to anyone

Considering the wallet is empty, any attempt on the hash would be futile.

[math09183]

So, finally, what has happened? OP "forgot" he emptied his wallet or the wallet was stolen/cracked by someone else?

[o_e_l_e_o]

OP "forgot" he emptied his wallet or the wallet was stolen/cracked by someone else?

Either someone stole all his coins as a result of him storing his wallet.dat on a cloud service (also known as "someone else's computer"), or more likely the wallet was never his to begin with, and he has either stolen a wallet.dat file or been duped in to buying an empty wallet.dat file from a scammer. Given that OP seems to have moved on and forgotten about it pretty much immediately, I would be very surprised if those 10 BTC were ever his to begin with.

[BitMaxz]

I'm right that his blockchain wallet is not running at the full node or not fully synced. I actually have the same issue before where my wallet is running at pruned mode using it while syncing with BTC until downloaded all 10GB of blocks but after a few weeks decided to dump the private key and restore it to Electrum and spend it(So mine is not stolen).

However, after a few more weeks I open the Bitcoin core wallet and I notice it still has a balance that time I thought that I'm lucky that I still have a balance on my old wallet I tried to spend it on the Bitcoin core wallet, and broadcast but it didn't work and I remember that I already exported the private key and spend it on another wallet until I understand that the last blocks that were already downloaded still store the data balance of my wallet and then I set -reindex/-rescan after it's done it shows no balance.

[o_e_l_e_o]

until I understand that the last blocks that were already downloaded still store the data balance of my wallet and then I set -reindex/-rescan after it's done it shows no balance.

So this will only work with a pruned node if the block(s) containing the transaction(s) relevant to your wallet are still stored on your disk - so in your case, they were still recent enough to be within your 10 GB limit. When you restore your wallet and rescan, your node scanned the blocks it still had, found the relevant transactions, and updated your balance accordingly.

If, however, the blocks containing the relevant transactions have been deleted from your hard disk because they were old enough to be pushed beyond your 10 GB limit, then obviously your node cannot scan those blocks because it no longer has them, and so it cannot update your balances and your wallet will continue to show the old balances, as has happened in OP's case. The solution to this is to turn off pruning, re-sync the entire blockchain, and then rescan. Or alternatively to export your private keys in to a wallet such as a Electrum.