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Lost your hardware wallet passphrase and looking for a way to recover your coins? This is the way Keychain X Recovery professionals have done it for their clients. This is a trusted service provider that specializes in recovering lost crypto wallets, and can even recover funds from broken hardware drives, phones, or Trezor/Ledger wallets.
Recover Trezor wallet passphrase
The TREZOR hardware wallet is a security device that protects you from key loggers and phishing emails and keeps your bitcoins and cryptocurrencies safe. Various hacking groups can expose devices by mitigating side-channel attacks. However, this method was possible only because “no passphrase is used”. When making a transaction, the user only needs to enter her PIN, thus protecting the Bitcoin private key. The only backup is a 12/24 word mnemonic that determines the address stored in the device.
A customer recently asked Keychain X The team brute-forced the TREZOR wallet because the client forgot the passphrase (commonly known as the 25th word). The passphrase is designed to ensure that if a user loses his TREZOR and someone gets his 24-word mnemonic, his funds are safe. A passphrase can be a word, number, or random string. The idea behind it is to make a thief believe that if he opens someone’s TREZOR or recovers it in 24 words, he will only find “fake” or a low amount of “fake” of value. BitcoinThis particular client had $10 USD worth of bitcoin in TREZOR’s main wallet based on 24 words, but the real treasure trove was the wallet hidden behind his passphrase. , the team could not reveal its value.
The KeyChainX team has split this task into two (or three) phrases. But before the team started, the client wanted to meet in person. Security His presentation was scheduled in Europe, so a trip to South America was out of the question, so the client agreed to a Skype ‘interview’ with him. Two hours later, the team convinced him not to run away with his money.
How did the team decipher it and brute force it?
The first part is data sourcing. First, the team gathered information about potential passphrase hints. This is because brute force processing a six character passphrase with traditional tools would take forever. For example, in his GITHUB repository by user gurnec, there is a tool called Btcrecover, with brute force he attacks an average of 200 passwords per second. For example, it would take him two days to crack a five-character password. 6 months if you add capital letters and numbers.
The client’s password consisted of at least 5 characters containing both uppercase and lowercase letters, possibly numbers and unique characters. That is, if the main wallet was created on her TREZOR first. It wasn’t. Instead, a “fake” wallet was created. First there was the transaction, then the real wallet was created. The team was then forced to search and change multiple wallet addresses, doubling the time required to break the encryption.
This isn’t the first time the team has received a request to open TREZOR, so about a year ago the team decided to build a custom-made GPU-powered tool. The custom tool has a speed of 240,000 passwords per second, which is 1000x faster compared to the gurnec GitHub source.
Customize Mask Attack
The client provided the KeyChainX team with five wallet addresses they have used in the past, a list of hints, and 24 word mnemonics. First, the team had to determine if her 24 words were valid and if the mnemonics were valid.
Then I had to select a derived path to search. TREZOR can use both LEGACY and SEGWIT addresses, and you can easily distinguish between their specifications by looking at the first letter of the address. LEGACY starts at 1 and SEGWIT starts at 3. Also, different BIP versions use different derived paths, so the team had to specify which wallet type and derived path to use. Finally, SEGWIT uses m/49’/0’/0’/0 and LEGACY has some options. Finally, TREZOR launched a custom tool with 8 x 1080Ti Founders Edition GPU cards (each costing up to $1000 USD depending on specs and model).
Initially, the team searched for enough space for letters and words, but masks and algorithms took about two months too long. The team had to change tactics and look at the TREZOR owners’ tips to find a pattern. This pattern used lowercase/uppercase as the first password character. Then some lowercase letters, and a limited combination of numbers (date of birth, month, her PIN code to the safe, etc.). Two unique characters were also used, so the team had to take that into consideration. The mask was changed again and the BOOM team found the password within 24 hours of his “interview”.
A simple message on WeChat to the client Bitcoin Wallet (the team advised him not to use the same TREZOR again). The team transferred the client’s funds within an hour of him.
crypto wallet recovery expert
If you’re not already familiar with KeychainX, this is a cryptocurrency wallet recovery service that has been in operation since 2017. The company has recovered wallet keys for many clients around the world and you can see some of the rave reviews online. trust pilot Here, KeychainX has an almost perfect 4.9 “excellent” score.read this paper Learn how to unlock different types of wallets here About collaboration with blockchain wallet here Especially for key recovery from Multibit Classic or Multibit HD.
KeychainX moved from its birthplace in the US to Zug, Switzerland in 2021. Zug is part of the world known in the blockchain community as the Valley of the Crypto-his because of its concentration of related companies. The company’s CEO, Robert Rhodin, is unsurprisingly one of the leading experts in the field of crypto wallet recovery.
For more information on company visits, KeychainX.io Or, if you need to talk about password recovery, send an email to KeychainX@protonmail.com.
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