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Notpetya Ransomware Hackers Want 100 Bitcoins For Decryption Keys

Notpetya Ransomware Hackers Want 100 Bitcoins For Decryption Keys

NotPetya Ransomware Hackers Want 100 Bitcoins for Decryption Keys NotPetya Ransomware Hackers Want 100 Bitcoins for Decryption Keys By Ryan Whitwam on July 6, 2017 at 7:30 am This site may earn affiliate commissions from the links on this page. Terms of use . The story of last weeks NotPetya ransomware outbreak has taken an unexpected turn. The ransomed funds have remained idle in a Bitcoin wallet ever since the attack was mitigated by Ukrainian authorities, but now the money is on the move. Someone claiming to be behind the attack has withdrawn the funds and posted a new ransom demand. For the low price of 100 Bitcoins, he or she will hand over the master decryption keys for the NotPetya malware. The NotPetya ransomware started hitting computers in late June, just weeks after the similar WannaCry attack occurred. In fact, both pieces of malware used the EternalBlue Windows exploit exposed by leaked NSA documents. Like all ransomware, NotPetya encrypts files when it hits a new machine, then pops up a notice to send Bitcoins to a certain address in exchange for the key. NotPetya came with the added bonus of deleting certain system-level files, which rendered machines unable to boot. It appears the intention was never to provide the encryption keys at all. That makes the latest move all the more confounding. The Bitcoin blockchain is public, so researchers and authorities were watching the wallet address that received payments for NotPetya. The wallet was sent around four Bitcoins, which works out to over $10,000. At $300 per ransom, that works out to more than 30 victims paying up at $300 each. And they probably got nothing in return. The funds were suddenly withdrawn from the wallet yesterday and routed to three other wallets. One was a previously empty wallet set up b Continue reading >>

Securing Your Wallet

Securing Your Wallet

Like in real life, your wallet must be secured. Bitcoin makes it possible to transfer value anywhere in a very easy way and it allows you to be in control of your money. Such great features also come with great security concerns. At the same time, Bitcoin can provide very high levels of security if used correctly. Always remember that it is your responsibility to adopt good practices in order to protect your money. You should be wary of any service designed to store your money online. Many exchanges and online wallets suffered from security breaches in the past and such services generally still do not provide enough insurance and security to be used to store money like a bank. Accordingly, you might want to use other types of Bitcoin wallets . Otherwise, you should choose such services very carefully. Additionally, using two-factor authentication is recommended. A Bitcoin wallet is like a wallet with cash. If you wouldn't keep a thousand dollars in your pocket, you might want to have the same consideration for your Bitcoin wallet. In general, it is a good practice to keep only small amounts of bitcoins on your computer, mobile, or server for everyday uses and to keep the remaining part of your funds in a safer environment. Stored in a safe place, a backup of your wallet can protect you against computer failures and many human mistakes. It can also allow you to recover your wallet after your mobile or computer was stolen if you keep your wallet encrypted. Some wallets use many hidden private keys internally. If you only have a backup of the private keys for your visible Bitcoin addresses, you might not be able to recover a great part of your funds with your backup. Any backup that is stored online is highly vulnerable to theft. Even a computer that is connected to the I Continue reading >>

Recover Your Wallet, Quick Andeasy

Recover Your Wallet, Quick Andeasy

Visit recovery.blocktrail.com . Click Begin Recovery. 2. Input your backup data in the appropriate boxes. Your backup data can be found on your backup PDF, which you should have saved when you created your wallet. Alternatively, you can click Import from Backup in the upper-right corner, and upload the PDF itself. Note: Importing your backup PDF is the more convenient option, as it will allow you to skip the manual input of your data. Using this method, you also will not need to scan your QR code. 3. If you have forgotten your password, click Forgotten password? beneath the Wallet Password box. Input your account email and your wallet identifier, which is on the first page of your PDF backup. Click Request Decryption Key. The key will be sent to your email address. Input this key into the Wallet Password box of the Recovery Tool. 5. You will be taken to the Configure Recovery Settings page. If you have had your wallet for a relatively long time (or have used it frequently), increase the batch size so the scan will include more potentially balance-holding addresses. Click Next. 6. You will be taken to the Discover Wallet Funds page. Here, you will be able to scan to recover funds from addresses in your wallet. Click Begin Discovery and wait for the scan to complete. 7. The scan will alert you to funds found. Click Next. 8. If funds are found, click Begin Recovery. 9. When your bitcoin has been recovered, you will to choose to send your funds via Blocktrail or Insight. Clicking either option will push your bitcoin to the network. The bitcoin will then be transferred to your specified wallet address. 10. Congratulations! You have recovered your wallet! If you have any questions, please do not hesitate to contact us at [email protected] Continue reading >>

Decrypt And Earn A Bitcoin Right Away ..

Decrypt And Earn A Bitcoin Right Away ..

The last three years we have been working hard at StorGrid developing a cryptography solution for mobile devices. One of the challenges we had was to make the program easy to use. It seems that the more secure you make a system, the harder it is to use it. Think of these Password checkers who tell you that your password must consist of a minimum of 10 characters, at least one uppercase letter, at least one digit, and preferably another weird character .. And you should change your password every month again Nice idea, but of course this will never work. We decided therefore to develop a concept called Zero Knowledge encryption . In other words, no knowledge is required in order to work fully secured. In fact we found out that the biggest security breaches are not being caused by inattentiveness, nor by deliberately peculating or sharing with unauthorized people, but by ignorance. People are often unaware that their tablets or smartphones may contain important files, which, if you lose your phone or tablet, or if it gets stolen, become accessible to the finders or the thieves. Well, I do not know about you, but I do not like to think about security of my data all the time. I think that everything should just work. I have a few passwords I use to access stuff online and offline and, as an extra security layer, I sometimes need to use a 4 digit Pincode, and that should be enough for me. At least, it is the maximum that I want to use to be secure, and to work hapily. I also do not want to worry about sensitive data, if, by chance, my phone is lost or stolen. So, the system we have invented for Storgrid is based on ease of use and simplicity If we use our system to encrypt a file, then it should just be safe .. Encryption keys must be dynamically distributed, may not reside Continue reading >>

Meet The Man Who Will Hack Your Long-lost Bitcoin Wallet For Money - Coindesk

Meet The Man Who Will Hack Your Long-lost Bitcoin Wallet For Money - Coindesk

Meet the Man Who Will Hack Your Long-Lost Bitcoin Wallet for Money For Dave Bitcoin, the alias of the software architect that hacks peoples cryptocurrrency passwords, the price surge of Ethereums blockchain token ether has generated a significant amount of work; work that wouldnt have been steered his way without his focus on developing trust. And just to be clear, Dave Bitcoin hacks peoples passwords with their permission. He runs the website Wallet Recovery Services , which recovers peoples lost or forgotten passwords by brute force decryption that is, using a computer program to try millions of passwords in a short amount of time. He provides the service for bitcoin, litecoin and most other alternative cryptocurrency wallets, and in December, he began decrypting Ethereum pre-sale wallets. "I love a challenge," said Dave Bitcoin, whos pseudonym remains from the days when it was unclear if cryptocurrency was legal. "Initially, back in mid-2013, I just wanted to understand the cryptography used by bitcoin and the formats of encryption in the wallets. I realized that I was able to potentially help people who have forgotten their wallet passwords, and it grew from there." Dave Bitcoin has worked with more than 1,000 people since he launched the service, most in need of password recovery but a few that wanted deleted wallet files recovered. His success rate is about 30%, but its a rate that varies drastically based on how much information a client gives. Since January, Dave Bitcoin's Ethereum business has exploded, coinciding with the 1000% price increase. Today, about 50% of his business is decrypting Ethereum wallets, 40% is bitcoin related and the remaining 10% is recovering altcoin wallets, like litecoin or dogecoin. Dave Bitcoin charges 20% of the amount in the walle Continue reading >>

Watch As These Bitcoin Wallets Receive Ransomware Payments From The Ongoing Global Cyberattack

Watch As These Bitcoin Wallets Receive Ransomware Payments From The Ongoing Global Cyberattack

An ongoing ransomware attack that affected more than 45,000 systems on Friday has spread to 74 countries , locking doctors in the U.K. out of patient records and reportedly forcing emergency rooms to send patients to other hospitals. The attack has also hit a Spanish telecommunications company and a Russian cellphone operator . Security experts say the strain of ransomware being used, called the Wanna Decryptor, is exploiting a vulnerability in Microsoft Windows that was leaked last month by an anonymous hacker group calling itself the Shadow Brokers. The group claimed it had stolen the exploits it released from the US National Security Agency. Ransomware is a form of malware that encrypts a computers files and displays a message to the user, saying it will decrypt the files for a payment, typically via bitcoin. The messages displaying on NHS computers and others have been circulated in photos on social media, and include instructions to send $300 or $600 to one of three bitcoin addresses. Those three address, experts have discovered , were hard-coded into the malware. And like all bitcoin addresses, theyre tied to publicly-accessible accounts, typically called wallets. The wallets show each payment victims have sent in hopes of regaining access to their files. Weve setup a Twitter bot to watch each of the three wallets and tweet every time they receive new payments. It will also tweet the total amount the wallets have received every couple of hours. You can follow it at @actual_ransom . I'm watching 3 #ransomware -associated wallets that have received 92 bitcoin payments totaling $26,407.85 USD. #wcrypt #wannacrypt Continue reading >>

Understanding Bip-38 Password Encrypted Paper Wallets

Understanding Bip-38 Password Encrypted Paper Wallets

About BIP38 password-encrypted paper wallets The advantage to encrypting your paper wallet's private key with a password is that if your paper wallet is stolen or otherwise exposed, the balance on the wallet is safe unless the passphrase used to encrypt the wallet is guessed. However, if you encrypt your private key with BIP38 and you lose your passphrase, it will be impossible for you to recover the funds you have sent to this wallet. Also, note that not many bitcoin wallet applications or web services are able to import BIP38 private keys. In this case, you will have to use the "Validate" feature on the generator to extract the unencrypted Wallet Import Format (WIF) key as an intermediate step before sweeping the balance. WARNING: Before sending any funds to a BIP38-encrypted wallet, first do a test make sure you are able to decrypt the printed private key back to ordinary WIF format. In short, if you do not have a strong understanding of the BIP38 encryption and decryption workflow, do not BIP38-encrypt your paper wallet. Just print your paper wallet out without encryption, and keep it safe the same way you would jewels or cash. How do I convert a non-encrypted wallet to use BIP38? If you have a regular paper wallet that displays the unencrypted WIF key, you can duplicate it and print out a new BIP38-protected version of the same wallet in just a few steps: Launch the generator , preferably using your own copy downloaded from GitHub . You may skip the random mouse movement step since you are not generating any new keys. Click on the Validate tab, and either type in your private key, or scan its QR code. (Firefox works best for camera scanning.) Click the validate button. Click Use these details to print a paper wallet Click the checkbox for BIP38 Encrypt?, supply yo Continue reading >>

How To Recover Your Bitcoin Wallet Password

How To Recover Your Bitcoin Wallet Password

How To Recover Your Bitcoin Wallet Password This guide will also work for most crypto-currency wallet password recovery. This guide is designed to work for you and will take you every step of the way inDo It Yourself Password Recovery, but it often takes multiple, powerful CPUprocessors to efficiently recover a password. If you don't want to do it yourself, Go Bit Go offers a full password recovery service using Powerful CPU Clusters working dynamically. For more information, click here. You can always try it yourself, and if you decide you need professional recovery, we can help. Once upon a time, your bitcoin wallet wasn't worth much but that once low valued wallet is now worth how much? Thousands? Millions? A new life - free of monetary struggles? That's great news! The bad news is you lost or forgot your password! Hey, it happens but unlike your favorite website (possibly GoBitGo.com?), there is no "I forgot my password" option. What do you do when your bitcoin fortune is so close yet so far, and the only thing that separates you from that fortune is a few digits? That's where this DIY (Decrypt It Yourself) guide comes in! BE WARNED: While this guide is likely your best bet in recovering your wallet, it will not work for everyone due to the following requirements: Having the required knowledge and understanding to complete the process described below. Your computer hardware may not be fast enough to decode your password in any reasonable amount of time. There are potentially infinite variations of passwords. Your password may be lost forever or at least until computer hardware is faster Below, I am going to focus on bitcoin but the process should be the same for all crypto currency password, since they are all based on bitcoin. Anywhere I say bitcoin, substitute yo Continue reading >>

Bitcoin Private Keys: Everything You Need To Know

Bitcoin Private Keys: Everything You Need To Know

Bitcoin Private Keys: Everything You Need To Know By: Sudhir Khatwani In: Bitcoin , Wallets Last Updated: What if you lost all of your bitcoins tomorrow? What would you do? If you dont own your private key, you dont own your bitcoins. Even the most knowledgeable man on Bitcoin says: The private key must remain secret at all times because revealing it to third parties is equivalent to giving them control over the bitcoins secured by that key. The private key must also be backed up and protected from accidental loss, because if its lost it cannot be recovered and the funds secured by it are forever lost, too. In my earlier guide on Bitcoin wallets , I have used two terms extensively-Private Address (or key) and Public Address (or key).These keys are what make Bitcoin the safest and most widely used cryptocurrency . Tounderstand private keys and public keys, let us look at an example. Consider a mailbox where you receive your physical mail. It has a unique and specific number (an address). If someone has to deliver you a letter, he/she must know your house/flat number to deliver it. And as the receiver, you have a private address (or key)to unlock the mailbox and collect your belongings. In real life, do you give your keys to someone unknown? You always keep track of your key and dont jeopardize the contents inside of your mailbox. Similarly, just like your house/flat number, anyone in the Bitcoin world can know your public address(Bitcoin address) to send you bitcoins. And to unlock (spend/send) those bitcoins, you would requireyour private address (or key)for which you need to take full responsibility, just like the keys of the mailbox. I feel that understanding the underlying technical aspect of keys is important so that your remain better informed and educated enough Continue reading >>

Found An Old Bitcoin Wallet Backup

Found An Old Bitcoin Wallet Backup

Short time lurker here I recently decided to look through my old harddrives and came across something pretty interesting I have a file called Bitcoin wallet backup. Judging by the dates, this was from back when I was buying stuff from darkweb. Because of the size of the file (33kb) and the lack of file extension Im guessing I encrypted the file somehow? Ive tried changing the extension to .dat and open with electrum but it didnt read the file. Doubt Ill be able to recover it but I thought Id see if you guys had any ideas on how I could open this. This is what a portion the file looks like in notepad: do you have any idea as to what software created the file? or was it just a notepad file you saved? Yes, it looks like an encrypted file. You could try decrypting it using openssl. I would try the following: openssl enc -d -aes-256-cbc -a -in "Bitcoin Wallet backup" Used openSSL and didnt get an error Ended up with a strange filetype that started with The rest of the file however, is just gibberish and looks like this: It looks like there are two different type files. One is KeePass which is software that allows you to create and store encrypted passwords: The other which says Bitcoin Wallet Backup I cant see the extension so I am not sure what type file that is. I would say use KeePass first with the .kdb files to get your old password as it is a database file that stores and encrypts multiple passwords. You still have to remember the password to unlock the database of stored passwords: Use this command from the command prompt to open KeePass database: KeePass.exe C:\My Documents\MyDatabase.kdb -preselect:C:\pwsafe.key This is separate then the encrypted Bitcoin Wallet Backup file. KeePass.exe C:\My Documents\MyDatabase.kdb -preselect:C:\pwsafe.key The MyDatabase.kdb is t Continue reading >>

Decrypting Bitcoin - The Simple Dollar

Decrypting Bitcoin - The Simple Dollar

I wanted to begin this post by asking the biggest question about Bitcoin. But the truth is, there are dozens of enormous questions about the digital currency: Can I touch it? How safe is it? Where do you get it? How do I protect it? Should I buy some and use it, or keep some as an investment? This just goes to show how confusing most information about Bitcoin is. The truth is, Im very intrigued by Bitcoin from several angles: Bitcoin as an innovation platform for the financial service industry bitcoin as a hedge against major currency collapse I also own bitcoin that I bought through Coinbase , probably the most well-known exchange and wallet service in the U.S. My rationale for owning bitcoin as a personal investment is that 1) supply is known i.e., a government cannot come in and devalue the amount of bitcoin I own; 2) demand is growing, and could grow exponentially; and 3) bitcoin seems like a good hedge against global economic turmoil, much like gold. In order to understand more, and figure out if Im on the right track, I turned to a friend of mine in Silicon Valley, Kilton Hopkins , to help me wrap my head around this topic and answer some of my basic questions about the cryptocurrency. You can follow Kilton on Twitter at @kiltonhopkins . In this guide, well answer the following questions about Bitcoin and its future: What problems in the financial system can Bitcoin solve? MG: Kilton, if you could explain Bitcoin to someone who has no idea what it is (like me!) how would you describe it? KH: Bitcoin is a cryptocurrency. Its a way of storing and exchanging value that relies on cryptography instead of a central trusted entity, like a central bank or government. Fiat currency is the term for U.S. dollars, euros, and other currencies that are backed by government ent Continue reading >>

How To Recover Your Corrupt Or Deleted Bitcoin Core Wallet

How To Recover Your Corrupt Or Deleted Bitcoin Core Wallet

How to recover your corrupt or deleted Bitcoin Core wallet This post discusses the methods for recovering a deleted or corrupt Bitcoin Core Wallet. Many other currencies, such as Bitcoin Cash, Litecoin, Dogecoins and more share Bitcoin Cores wallet format and can be recovered using the same techniques and tools. I assume that you have the wallet password, or there is no password. (Ill post later on what to do if you forget your password.) This information is based on helping dozens of people in similar situations with my Bitcoin wallet recovery service . The information below is just an outline. I hope to add detailed instructions soon. Your wallet could have been deleted in several ways: If you removed the Bitcoin Core software, your wallet is still on your computer. Just go to your Bitcoin Core Data Directory : If you deleted the wallet file, you should first check for any backups you made. If you dont have any backups, you can try two things: Until the file is overwritten by new data, deleted files stay on your hard drive. You can get them back with data recovery software: Android smartphones: Turn onUSB Debugging and connect to PC. Now run Smartphone-enabled data recovery software . iPhone: I do not believe deleted application data (unlike photos, messages, etc) can currently be recovered. Previous versions are copies of files and folders that Windows automatically saves as part of a restore point. Previous versions are sometimes referred to asshadow copies. Follow Microsofts instructions to see if there is an older copy of your wallet. If you did a quick format, all your data are probably still on the hard drive. Use the tools above. If you did a full format on Windows or Mac, your hard drive sectors have been completely zeroed out, and your data is lost. If you w Continue reading >>

Cryptolocker Ransomware Makes A Bitcoin Wallet Per Victim

Cryptolocker Ransomware Makes A Bitcoin Wallet Per Victim

Bitdefender antimalware researcher Octavian Minea explains the detailed inner workings of the Cryptolocker ransomware: The Cryptolocker ransomware gets installed by a Zbot variant and upon being run it immediately adds itself to Startup under a random name and tries to talk to a command and control server sending a 192 byte encrypted packet of the form "version=1&id=1&name={COMPUTER_NAME}&group={GROUP_NAME}&lid={LOCATION_ID}" where {GROUP_NAME} seems to be related to the time of compilation of the malware and an example for {LOCATION_ID} is en-US If successful, it receives from the server a (presumably freshly-generated) public key and a corresponding Bitcoin address. These are added to the registry in registry keys of the form HKEY_CURRENT_USER\Software\Cryptolocker_NUMBER\ which contain the values PublicKey, VersionInfo, Wallpaper PublicKey stores the public key, VersionInfo stores the Bitcoin address and the command and control server address in an encrypted form, while Wallpaper stores the path to an actual wallpaper, containing instructions for the victim: This done, Cryptolocker begins encrypting documents which are in any of these formats: File types encrypted by Cryptolocker (3368 downloads) . An AES key is generated for each file to be encrypted, the file is then AES-encrypted and the AES key is itself encrypted using the public key. The encrypted AES key is then appended to the encrypted file. HKEY_CURRENT_USER\Software\Cryptolocker\Files\ Meanwhile, a variety of messages and instructions are being displayed: Payment of the ransom can generally be performed in Bitcoins, although some Cryptolocker variants also accept payment methods Ukash, CashU or, only in the US of A, in MoneyPack prepaid cards which can only be bought with cash. All these payment methods a Continue reading >>

Lets Enhance! How We Found @rogerkvers $1,000 Wallet Obfuscated Privatekey

Lets Enhance! How We Found @rogerkvers $1,000 Wallet Obfuscated Privatekey

Lets Enhance! How we found @rogerkvers $1,000 wallet obfuscated privatekey Part of the documentary where Roger Ver gives the details of the Bitcoin wallet. Before we even start: We do not know the journalists who recorded the interview and we do not know Roger Ver. Anyone who had access to this video could have retrieved the private key. We could have simply named this post How great QR code are and how we recovered one from almost nothing. But its much more interesting when the QR code is the key to a $1000 Bitcoin Cash wallet. Bitcoin, Ethereum, Litecoin, Dash, Neo Cryptocurrencies are all over and are moving fast. I have been following Bitcoin since 2013 (following doesnt mean buying), had to read Mastering Bitcoin 3 times to understand how each part of it really works and be able to explain it to someone else. Still, I cant keep up with the market, new cryptocurrencies, new forks, new ICOs everywhere, every day. Its easy to start using cryptocurrencies by following a tutorial online. Download a random wallet app, generate a random pair of keys and buy some crypto on a random exchange but the cryptocurrencies learning curve is difficult. If you dont fully understand how all parts of this work you should avoid cryptocurrencies. If you dont, you risk losing your money by falling in one of the many pitfalls. One of them, keeping your private key secure, is the subject of this post. The first rule of Crypto Club is: You do not share your privatekey. The most precious thing you have when you own cryptocurrencies is your private key. If you lose your private key, you lose your money. If someone gets access to your private key, you lose your money. Simple. With this real-world example will show you step by step how we recovered the private key of the $1000 Bitcoin wallet c Continue reading >>

Wallet Recovery Services

Wallet Recovery Services

Bitcoin and Ethereum wallets are normally encrypted by you, the wallet owner.However, sometimes you forget or misplace your wallet password. This is a bad thing! Unless the password is recovered, you have no way to access any funds stored in that wallet. That money is lost forever. At todays exchange rate, that might be a lot of money. We have created a service that can take your wallet information, your best guess at your remembered password/passphrase, and attempt a brute force decryption of your wallet. If you have no idea at all of your password, and it was more than a handful of characters long, then it is unlikely that we can help you. No-one in the world, including the NSA, CIA, D-Wave or anyone else can crack the encryption used in the Bitcoin or Ethereum wallet if the password is more than 15 fairly random characters. The wallet encryption is strong by design. There are no known flaws in the implementations, and many people have tried to break them! However do not despair maybe your password wasnt as secure as you thought, or maybe it was completely different from what you remember? If, however, you have a vague idea of your password, but cant quite remember it Then we can help you. If you thought your password was probably TheIceMan123, but werent sure about what capitalization or suffix number you used, then we can help. If you were sure that you wrote down the password Hdd%&7d77ddH#[email protected] when you chose it, but now it will not unlock the wallet when you type it in, then we can help. If you were pretty sure that your password contained words from a sentence from The Return of the King, but youve forgotten which page, then we can help. If you reckon that your password is some permutation (with some spaces or maybe capitals) of 6 of the words in the list "fred, h Continue reading >>

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