Hello, I have a client who has some Bitcoin on a blockchain.com wallet but he can not login.
He knows his wallet id and knows a set of characters (8-12 as he remember) he usually use for password. What is the best way to help him brute force his wallet?

Any advise is appreciated. Thank you.

Hello.

I have old wallets on my hard disk, dating back in 2017. I am sure they are empty but I would like to have a look there, make sure.

The problem is I just have the files. I don't even remember what software I used for that.

How do I check?

thanks

I just have found a wallet which I used back in the day to receive BTC from faucets. That was long ago. It was on my old hard drive which was a lost one for me but luckily I discovered the drive yesterday.
What's the fastest way to check the balance on my wallet? There's a folder inside which contains wallet.dat file. How can I recover the fund? I can't wait to see the balance.

Yes, 100%

When I download Bitcoin core and create a new wallet, I am asked for a passphrase containing at least 8 words.
Unfortunately this passphrase is all I have

BR
Gawan

hi
I have problem with my 24 phrase of coinomi wallet. I have written them but I forgot to write their order number , so I have the 24 word but their arrangement is not correct

so I need to test this phrase with an application to find correct arrangement of 24 phrases
I need application to do this ( it has 620,448,401,733,239,409,999,872 possibility)
please help me 

The passphrase that I believe is the correct one is just alphanumeric (so a-z, 0-9).

I have tried opening the wallet with older versions of the client which, i believe I mentioned, crashed upon loading. I experiment with copies, and keep my original wallet on my NAS (which is only locally accessible).

The other thing that is weird is the older clients seem to use a character set no longer available in MacOS, as all text in the application consists of just rectangles. This leads me to believe it has something to do with the character set being used in the original wallet passphrase that does not correspond to my current keyboard layout (even though it might represent the same characters). This is because I stumbled upon this blog post https://keychainx.medium.com/how-to-recover-a-lost-bitcoin-wallet-dat-password-4ff7704740ad

Genuine question: Are GTX 1080 Tis actually that fast? 5 missing words gives 2048^5 combinations, which would work out at checking 114 million possibilities per second per graphics card. I appreciate that many of those will have an invalid checksum and can immediately be discarded, but with even only 1/16th with a valid checksum, that's still 7.125 million seed phrases that it has to pass through PBKDF2 and derive an address for.

I suppose you could half all those numbers if you are looking at the 50% solved average benchmark, but even then, that seems a bit fast to me.

Still, that all rests on the fact that you know the order of the words. In OP's case, where he doesn't know the order of the words, then everything becomes significantly more difficult, to the point of impossibility.

The low price value and its association with some personal data to send the wallet to you will accelerate the limited number of people interested in such a competition.
$ 400, does not look like a large amount in order to participate in a challenge to collect the largest number of points and then compete for first place.
The award might be a bonus in the limited edition, but the user should have left the option to either get larger amounts or the limited edition.

Out of curiosity, what does that actually "check" to determine validity?

Does it just check the first X addresses generated? if so, is "x" configurable and does a higher number like 20 or 100 cause a significant increase in time required?

Hello all, and thanks to any who are able to help, my father remembers most of the words (say m=10 for example), and I'm fairly certain it was a 12 word seed.

Correct me if i'm wrong, but a 12 word seed has 12 factorial (479001600) possibilities, and since i'm missing two of those words, that leaves the dictionary size squared as roughly 4 million times factor.

I'm familiar with python, and thankfully electrum uses a pretty capable python console. But just generating all permutations killed my program. I redid it in Haskell (NOT A PRO AT HASKELL tho I love what little I know) and was able to generate ~~50GB  list of all permutations in 33 minutes, but still need the 4 million substitutions of words in the dictionary so my plan of just having a text file containing all possible phrase ideas and having python run through that is seemingly less feasible.

I'm familiar with multithreading, tho in C, not python. and have access to a large computer cluster if need be (~~44 CPU cores in one node, 24 cores in the GPU node w/ 4xTesla, and another 48 cores on an AMD node)

Before I go any further, I wanted to check if there was a smarter way of doing this kind of dictionary recovery attack.

Please and thank you for any time spent helping

Thanks for the reply - but I need to crack the RAR file first, to get the wallet - i am aware there are some commercial offerings re the wallet itself, but not the container (the RAR). I suppose shooting them a quick email to ask wouldnt do any harm though...

Hi all,
I have a problem :
- I resetted my Ledger Nano S by putting 3 times the wrong password.
- I do have the list of word, and have 23 of the 24 words (yes this is weird but that's the problem).

So I know 23 of the 24 words, but I'm stuck to know what the last word is, and I'm not really sure about its position in the whole list...

Does someone have a solution for this?

Thanks,
kel

The video is interesting, but as I thought, things aren't quite as simple as they are presented. But if one were to be in a situation of having mixed seed words, and all the relevant information, I believe it would not matter too much whether it would take 5 hours, 5 minutes or 5 days. Of course, it doesn't all depend on the degree of intricacy of how seed is scrambled, but also about the type of CPU and other computer components.

What is definitely true is the fact that one should not rely solely on word place replacement as only security measure, encryption or divide them into 2-3 separate parts has far greater security.

Now i realized how stupid i was/am.Yes . They interogate that guy .  . The prosecutor told me they will sure identify the second guy.
Now i wait. Exactly as you said for the police crypto is new and dont know if they can follow the Btc.
Thank u for all your responses i feel a little better when i share with sommeone

Unfortunately I had already performed the search with the HxD editor of the hexadecimal progression 0201010420, but did not find this string on the file which is still partially corrupted.

I heard of an article about "hackers" trying to crack into a 70,000 BTC wallet, and was wondering if there's any tools out there on how to do it?
I already got a wallet that hasn't been used since 2017, and wanted to know if there are any good tutorials out there to successfully crack a wallet?
I do not know anything about the password of the wallet itself, and it is in the public domain (still has bitcoin on it), and I am aware that this isn't easy money, but it is worth a shot.
I decided to make a thread here because all the information that I've found is very vague on the subject.
If anyone has any suggestions or any help for me, go right ahead and reply to this thread, thanks.

I need a tool that can rescan my wallet
not bitcoin-qt, another similar program
 Can someone recommend or provide

Ok in short 2012 or 2013 i bought little more than 4Bc for about 100$ each (I know we all are banging our heads why not bought more coins right? )

ps: why don't the pic show I put the link in middle of is that not the correct way ?

We have successfully recovered several wallets in the last few months including Zcoin, Bitcoin core, blockchain.com and Ethereum JSON.

Please read our blog https://medium.com/@keychainx or check out our website https://keychainx.io

You can also send us secure mail to keychainx@protonmail.com

/KX