I have the wallet and password, but no seed or 3fa

HCP

legendary

Activity: 2086

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Quote from: andrecalabrese on April 10, 2020, 01:57:00 PM

I lost an electrum password.there is not much, only 0.5 btc, can you help me?

Is that Electrum wallet on your mobile device... or is it the desktop version? Do you not have the backup phrase (12 words?)

If it is on the mobile, you'll probably find it a bit difficult to get the wallet file without having root access to the device... without access to the actual wallet file, then johntheripper is of no use to you.

BitMaxz

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Quote from: andrecalabrese on April 10, 2020, 01:57:00 PM

I lost an electrum password.there is not much, only 0.5 btc, can you help me?

I agree with the post above it's not always safe to get help to newbies and if you receive PM to unknown users or low-rank members to recover your wallet. There is a big chance that they are going to steal something from your wallet file or any important data from your wallet.

If you have a backup seed you can follow this method below.

- http://docs.electrum.org/en/latest/2fa.html#restoring-from-seed
When restoring the wallet it will ask if you want to keep or disable 2fa. Any of these should recover your old wallet.

DireWolfM14

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Quote from: andrecalabrese on April 10, 2020, 01:57:00 PM

I lost an electrum password.there is not much, only 0.5 btc, can you help me?

I would caution against asking a new member for help with your password. Nothing against tianxie, but you would be taking a big risk giving personal information to anyone who you meet on this site. Most of us are fairly anonymous and there's little preventing someone from running off with your money.

Besides, a lost password for an Electrum wallet file is not a big deal at all if you have your seed phrase. Just use the seed to restore the wallet. You'll lose all your tags and contacts, but your bitcoin will be there.

andrecalabrese

newbie

Activity: 13

Merit: 1

Quote from: tianxie on April 08, 2020, 08:31:01 AM

Quote from: scottemick on April 04, 2020, 09:49:27 AM

A good customer of mine lost his 2fa and can't find the seed.

Is there anything I can do with this wallet?

I am going to post this here and hope someone has a general idea while I go and research what I can do with Kali....Maybe I can spin up an AWS VM with graphics cards or just use my own Alienware 1080 GTX to cycle through all the combinations...

Any ideas appreciated.

Thanks

Scott Emick

If you have an idea of the password and the json file you can brute force it. Download john the ripper from github to extract the hash then use hashcat to bruteforce the password. if its less that 6 characters will be very fast.

I lost an electrum password.there is not much, only 0.5 btc, can you help me?

Csmiami

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Quote from: tianxie on April 08, 2020, 08:31:01 AM

If you have an idea of the password and the json file you can brute force it. Download john the ripper from github to extract the hash then use hashcat to bruteforce the password. if its less that 6 characters will be very fast.

That makes really no sense for various reasons:

1) If you read correctly, the user HAS the wallet file AND the password, but lacks 2FA AND seed.

2)You don't need the 2FA to enter the wallet, but you need it to be able to send transactions

3)Even if he didn't have the password and buteforced it in a reasonable amount of time, he'd still need the 2FA token; because p2wsh key cannot be swept into other wallets.

Electrum 2FA works as if it was a ulti-sig wallet, so the problem is the same: the user has no seed to import into a non 2FA wallet to send the funds to another wallet.

tianxie

member

Activity: 95

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Quote from: scottemick on April 04, 2020, 09:49:27 AM

A good customer of mine lost his 2fa and can't find the seed.

Is there anything I can do with this wallet?

I am going to post this here and hope someone has a general idea while I go and research what I can do with Kali....Maybe I can spin up an AWS VM with graphics cards or just use my own Alienware 1080 GTX to cycle through all the combinations...

Any ideas appreciated.

Thanks

Scott Emick

If you have an idea of the password and the json file you can brute force it. Download john the ripper from github to extract the hash then use hashcat to bruteforce the password. if its less that 6 characters will be very fast.

pooya87

legendary

Activity: 3472

Merit: 10611

2FA is not something you can even begin to brute force because you don't have anything to compare it with (which is the requirement for any brute force to begin breaking it). instead you have a third party server that you need to connect to and send the code to in order to see if it was correct. that server is not going to let you flood it with trillions of requests. not to mention that 2FA codes reset every couple of seconds.
and obviously private keys and mnemonic are too huge to be brute forced.

your only option is to continue pursuing a solution with that third party 2FA provider (Trustedcoin).

HCP

legendary

Activity: 2086

Merit: 4361

TrustedCoin have been helpful in the past with other users in a similar position. If he still has the wallet file and the password, then all you need is the 2FA code.

Once he gets the 2FA reset, he needs to create a new wallet and move those funds as soon as possible. Without the seed mnemonic... well, he's already had a glimpse of the issues not having access to the recover seed mnemonic presents! Shocked

scottemick

newbie

Activity: 12

Merit: 0

Thanks for responding, everything I've found so far says there is nothing I can do unless I found a vulnerability somewhere and that is highly unlikely.
I already had instructed my customer to contact trustcoin.
I know I can't brute force a private key....even with 16 GPU's on an AWS VM.
but since I had the password I was thinking I could possibly brute force 2fa code.
I'll keep looking, but hopefully trustcoin will come through. He's got 13 bitcoin on this wallet.

Scott

hosseinimr93

legendary

Activity: 2380

Merit: 5213

2FA wallets in Electrum are provided by a third party called Trustedcoin.
The only thing you can do now is to contact Trustedcoin. (Use the link below)
https://trustedcoin.com/#/contact-us

They may help you to reset 2FA using the email address you used at the time of creating the wallet.
I don't guarantee that you will be able to reset 2FA, but it's the only thing you can do.

DireWolfM14

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~~There's nothing you'll be able to do.~~

A GPU server won't help you. Even if it's only a 12-word seed phrase it'll take your GPU server billions of millennia to go through all the combinations. If it was that easy to crack a wallet every gamer on the planet would be doing it, and bitcoin would be worthless.

scottemick

newbie

Activity: 12

Merit: 0

A good customer of mine lost his 2fa and can't find the seed.

Is there anything I can do with this wallet?

I am going to post this here and hope someone has a general idea while I go and research what I can do with Kali....Maybe I can spin up an AWS VM with graphics cards or just use my own Alienware 1080 GTX to cycle through all the combinations...

Any ideas appreciated.

Thanks

Scott Emick

Topic: I have the wallet and password, but no seed or 3fa (Read 300 times)