Bitcoin Forum

Bitcoin => Bitcoin Technical Support => Topic started by: someone2 on March 08, 2015, 11:54:00 AM



Title: Recovered wallet.dat files
Post by: someone2 on March 08, 2015, 11:54:00 AM
I have recovered about 20 old wallet.dat files from a hard drive, some are bitcoin wallets, some are altcoin wallets (don't remember which is which, and which altcoins...) some are encrypted, some might be corrupted.

So what are my options to recover them? install every client and try to import every wallet with each client?


Title: Re: Recovered wallet.dat files
Post by: Newar on March 08, 2015, 12:54:26 PM

It used to be possible to import Bitcoin wallet.dats at blockchain.info. The rest - don't know.


Title: Re: Recovered wallet.dat files
Post by: unamis76 on March 08, 2015, 01:11:11 PM
You can use a tool like pywallet to "scan" for addresses and private keys inside the wallet. That way you'll know to which coin they belong to :)


Title: Re: Recovered wallet.dat files
Post by: someone2 on March 08, 2015, 04:54:57 PM
hmm, no Luck pywallet always tells me to quit bitcoin:

C:\New>D:\Python27\python.exe C:\New\pywallet.py --datadir C:\\New --dumpwallet
ERROR:root:Couldn't open wallet.dat/main. Try quitting Bitcoin and running this
again.


but there is no Bitcoin installed on this PC.


Title: Re: Recovered wallet.dat files
Post by: EcuaMobi on March 08, 2015, 06:38:39 PM
hmm, no Luck pywallet always tells me to quit bitcoin:

C:\New>D:\Python27\python.exe C:\New\pywallet.py --datadir C:\\New --dumpwallet
ERROR:root:Couldn't open wallet.dat/main. Try quitting Bitcoin and running this
again.


but there is no Bitcoin installed on this PC.

Try copying wallet.dat to the same folder as pywallet. Or at least the same drive.


Title: Re: Recovered wallet.dat files
Post by: LuckyBtc on March 08, 2015, 07:11:16 PM

It used to be possible to import Bitcoin wallet.dats at blockchain.info. The rest - don't know.
You can still import wallet.dats at Blockchain.

I have recovered about 20 old wallet.dat files from a hard drive, some are bitcoin wallets, some are altcoin wallets (don't remember which is which, and which altcoins...) some are encrypted, some might be corrupted.

So what are my options to recover them? install every client and try to import every wallet with each client?
Try importing wallet.dat on BC you might find the bitcoin wallet.dat :)
https://blockchain.info/wallet/import-wallet


Title: Re: Recovered wallet.dat files
Post by: unamis76 on March 08, 2015, 07:25:44 PM
hmm, no Luck pywallet always tells me to quit bitcoin:

C:\New>D:\Python27\python.exe C:\New\pywallet.py --datadir C:\\New --dumpwallet
ERROR:root:Couldn't open wallet.dat/main. Try quitting Bitcoin and running this
again.


but there is no Bitcoin installed on this PC.

Pretty strange, do you have your wallet on the default folder? That's where pywallet scans for files. Create a Bitcoin folder on %appdata% and put the wallet.dat there.


Title: Re: Recovered wallet.dat files
Post by: someone2 on March 08, 2015, 11:44:18 PM


 Create a Bitcoin folder on %appdata% and put the wallet.dat there.

Did exactly this and Pywallet could scan 3 of my wallets, (all empty bitcoin wallets ...) So the rest would be corrupted? Is there any documentation about the wallet.dat file format, or do I have to read the code to understand it?


Title: Re: Recovered wallet.dat files
Post by: Hfleer on March 08, 2015, 11:55:02 PM
Pywallet should work for Bitcoin but not for the others, also you can only extract things if unencrypted or you know the PW.


Title: Re: Recovered wallet.dat files
Post by: shorena on March 09, 2015, 12:29:54 AM


 Create a Bitcoin folder on %appdata% and put the wallet.dat there.

Did exactly this and Pywallet could scan 3 of my wallets, (all empty bitcoin wallets ...) So the rest would be corrupted? Is there any documentation about the wallet.dat file format, or do I have to read the code to understand it?

You should check them for CLAM[1], maybe the wallet had something left when they were distributed.


[1] https://bitcointalk.org/index.php?topic=623147.0


Title: Re: Recovered wallet.dat files
Post by: Hfleer on March 09, 2015, 12:32:23 AM


 Create a Bitcoin folder on %appdata% and put the wallet.dat there.

Did exactly this and Pywallet could scan 3 of my wallets, (all empty bitcoin wallets ...) So the rest would be corrupted? Is there any documentation about the wallet.dat file format, or do I have to read the code to understand it?

You should check them for CLAM[1], maybe the wallet had something left when they were distributed.


[1] https://bitcointalk.org/index.php?topic=623147.0

Yes, but I think he is far away from the point of even accesing them in the first place.


Title: Re: Recovered wallet.dat files
Post by: Webnet on March 10, 2015, 12:05:17 PM
you can use python tools to extract the addresses


Title: Re: Recovered wallet.dat files
Post by: desertfox470 on March 11, 2015, 01:33:49 AM
If the wallet is encrypted with a password and you do not know the password it is pretty much worthless to try and import it now. You will need to wait until computers are able to crack passwords at a crazy rate. It can take you years just to figure out a 8 letter passcode.


Title: Re: Recovered wallet.dat files
Post by: kowwip on April 01, 2015, 05:36:43 PM

It used to be possible to import Bitcoin wallet.dats at blockchain.info. The rest - don't know.
You can still import wallet.dats at Blockchain.

I have recovered about 20 old wallet.dat files from a hard drive, some are bitcoin wallets, some are altcoin wallets (don't remember which is which, and which altcoins...) some are encrypted, some might be corrupted.

So what are my options to recover them? install every client and try to import every wallet with each client?
Try importing wallet.dat on BC you might find the bitcoin wallet.dat :)
https://blockchain.info/wallet/import-wallet

Thanks for your direction ! This is the first time I know about this.


Title: Re: Recovered wallet.dat files
Post by: godidi on April 02, 2015, 02:17:22 PM

It used to be possible to import Bitcoin wallet.dats at blockchain.info. The rest - don't know.
You can still import wallet.dats at Blockchain.

I have recovered about 20 old wallet.dat files from a hard drive, some are bitcoin wallets, some are altcoin wallets (don't remember which is which, and which altcoins...) some are encrypted, some might be corrupted.

So what are my options to recover them? install every client and try to import every wallet with each client?
Try importing wallet.dat on BC you might find the bitcoin wallet.dat :)
https://blockchain.info/wallet/import-wallet

Thanks for your direction ! This is the first time I know about this.


Oh ! I am too. I am newbie about crypto currency so I just know a little about Bitcoin wallet even I still have not yet known how to use it well. This is the first time I know this. Thanks for great information !