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Bitcoin => Bitcoin Technical Support => Topic started by: Samki156 on March 08, 2024, 01:36:29 PM



Title: Missing last 7-9 digits of Blockchain's second password
Post by: Samki156 on March 08, 2024, 01:36:29 PM
Hi,

So I know the first nine characters of my second password,  know exactly which one of the letters are capitalized, the last two of the first nine characters are numbers, oh and the missing 7-9 characters do contain duplication of a digit.Tried these password hints with wildcards, but btcrecover only tries 4 or 5 iteration:
^1^ASDFGHj
12%7,9d
Do I need to include typos? Any help will be greatly appreciated.


Title: Re: Missing last 7-9 digits of Blockchain's second password
Post by: BitMaxz on March 08, 2024, 03:23:23 PM
Are you trying to brute force the blockchain wallet backup in JSON format?
You might be using an old version of BTCrecover which is why it only tries 4 to 5 times.
Try this one https://github.com/3rdIteration/btcrecover
Also, check the usage sample here https://btcrecover.readthedocs.io/en/latest/Usage_Examples/2020-05-08_Recovering_Blockchain_Wallet_Passwords/Example_Recovering_Blockchain_Wallet_Passwords/

If this is a blockchain wallet why not recover your wallet with your backup seed phrase?

I think it is better to hire professional recovery services because it's hard to guess 7 or 9 characters.
You can find the official thread here https://bitcointalk.org/index.php?topic=240779.0


Title: Re: Missing last 7-9 digits of Blockchain's second password
Post by: keychainX on March 13, 2024, 10:45:37 AM
Hi,

So I know the first nine characters of my second password,  know exactly which one of the letters are capitalized, the last two of the first nine characters are numbers, oh and the missing 7-9 characters do contain duplication of a digit.Tried these password hints with wildcards, but btcrecover only tries 4 or 5 iteration:
^1^ASDFGHj
12%7,9d
Do I need to include typos? Any help will be greatly appreciated.

Hi, Its better to extract the hash and use hashcat. You can find it here: https://hashcat.net/hashcat/

Looking at your password ^ is a character that sometimes gets interpreted differently depending on your keyboard setup.

If you want to stick with btcrecover try  --typos-insert and --max-typos-insert

Good luck!

/KX


Title: Re: Missing last 7-9 digits of Blockchain's second password
Post by: nc50lc on March 16, 2024, 05:15:30 AM
Tried these password hints with wildcards, but btcrecover only tries 4 or 5 iteration:
^1^ASDFGHj
12%7,9d
Have you used --passwordlist intead of --token?
If so, it could be the reason for the very small iterations which is as much line as the passwordlist, if not used with certain "typo" args.

Your choices are either:
  • Use --token your-tokens.txt ∙ then use the same "your-tokens.txt" in your example.
  • Use --passwordlist your-passwordlist.txt --has-wildcards ∙ then use a single line of "your-passwordlist.txt" instead: ASDFGHj12%7,9d