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Useful tutorials on various PC troubleshooting topics. Video tutorials.

How to recover deleted messages on iPhone

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iPhones have become a ubiquitous part of our lives, serving as both a communication tool and a repository of important information. We rely on our iPhones to store valuable data, including text messages, which can be used for everything from arranging meetings to keeping track of critical information. Losing these messages, whether by accidental deletion or through a software glitch, can be a frustrating experience. Fortunately, there are several ways to recover deleted messages on an iPhone, and in this article, we will explore some of these methods in detail. Whether you have a backup or not, there are ways to retrieve your deleted messages and ensure that you don't lose important information. So, let's dive in and explore how you can recover deleted messages on your iPhone.

How to remove Typo Ransomware and decrypt .typo files

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Typo Ransomware is a devastating crypto-virus (variation of STOP Ransomware), that uses the AES-256 asymmetrical encryption algorithm to restrict user access to their files without the key. Malware appends .typo extensions to files make them unreadable and extort ransom for decryption. "Typo" variant appeared in March of 2023 and infected tens of thousands of computers wordwide. Unfortunately, due to technical modifications in the newest version file recovery is impossible without backups. However, there are certain standard Windows features and tools, that may help you restore at least some files. File-recovery software may also be useful in this case. In the text box below, there is text message from _readme.txt file, called "ransom note". Below in the textbox you can get acquainted with the sample of such file. In this file, malefactors disclose contact information, the price of the decryption, and ways to pay the ransom.

How to remove Rans-A Ransomware and decrypt .Rans-A files

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Rans-A is a new file-encryptor variant that belongs to the Xorist family. After successfully infiltrating the system, the ransomware will proceed to encrypt potentially important data and add .Rans-A to the original filename. As a result, a previously accessible file like 1.pdf will change to 1.pdf.Rans-A and become access-restricted. The main goal of ransomware is to extort money from victims for the decryption of files. Thus, the virus displays an error message and creates a text file called HOW TO DECRYPT FILES.txt that both show decryption instructions (in Portuguese). Overall, victims are said the only way to retrieve data in its original condition is to contact cybercriminals within the set deadline. Should victims fail to do so by the end of the deadline, the decryption will supposedly be no longer available. In addition, the note also warns victims against deleting, renaming, or reporting the ransom message to any website/authority. Otherwise, cybercriminals' e-mail may end up blocked and no longer accept requests for data decryption. As a rule, upon reaching out to cybercriminals, they set a price that has to be paid for decryption.

How to remove Tycx Ransomware and decrypt .tycx files

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The number of queries related to new ransomware activity is growing each day with new infections. This time around, users are dealing with Tycx Ransomware, which is a new and dangerous piece developed by the Djvu/STOP family. This particular version started infecting computers in the second half of March 2023. Its recent activity has encrypted a lot of personal data with strong algorithms. Despite Tycx Ransomware has not being totally inspected just yet, there are some things that are clear already. For example, the virus reconfigures various types of data (images, documents, databases, etc.) changing original extensions to .tycx. This means that all types of data will save its initial name, but change the main extension to something like this "1.pdf.tycx". Once the encryption process gets to a close, you will no longer be able to access your data. In order to regain it, extortionists have scripted the creation of identical notes dropped into encrypted folders or onto a desktop. The name of the note is usually _readme.txt, which contains detailed instructions on how to recover your data.

How to remove Tywd Ransomware and decrypt .tywd files

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Tywd Ransomware (the latest version of STOP or Djvu Ransomware) is extremely harmful and one of the most active encryption viruses. More than half of ransomware submissions to ID-Ransomware (ransomware identification service) are made by victims of STOP Ransomware. Although it has been in circulation for a couple of years, the number of infections caused by Tywd Ransomware continues to increase. It may be somewhat ironic, but most of the victims (at the moment) are users of pirated software. The version of the virus, that is under consideration today, adds .tywd extension to files. The malicious program also creates a text file (called _readme.txt) in each infected folder, which explains to the user that his computer is infected, and he will not be able to access his data until he pays a ransom of $980. If the user pays within 72 hours after infection, the ransom is reduced to 490 US dollars. The example of this ransom note is presented below.

How to remove Darj Ransomware and decrypt .darj files

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Darj Ransomware is a prevalent encryption virus and blackmailer, that targets valuable personal files. Belongs to STOP/Djvu malware group. After infection and data encoding hackers start extorting the ransom. There have been more than 600 versions of the ransomware, each version gets slightly modified to circumvent the protection, but main footprints remain the same. The malware uses AES-256 in CFB mode. Shortly after launch, the STOP family cryptographer executable connects to C&C, retrieves the encryption key and infection ID for the victim's PC. Data is transmitted over simple HTTP in the form of JSON. If C&C is not available (the PC is not connected to the Internet, the server itself is not working), the cryptographer uses the hard-coded key and ID in it and performs offline encryption. In this case, you can decrypt the files without paying a ransom. Variations of STOP Ransomware can be distinguished from each other by ransom notes and extensions it adds to encrypted files. For STOP Ransomware under research today, extension is: .darj. The ransom note file _readme.txt is presented below in the text box and picture. In the article below we explain how to remove Darj Ransomware completely and ways to decrypt or restore .darj files.

How to fix black screen of death on iPhone

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If your iPhone suddenly shut down black and simply trying to boot it back does not help, then you are on the right guide to fix it. The "black screen of death" is a term used to describe a problem where an iPhone's screen remains black and unresponsive, even when the device is turned on. The reason your iPhone may abruptly go black can be related to various issues, including a temporary glitch, battery drain, or even hardware problems, which would require professional interference to identify and resolve the issue. Sometimes, a software glitch can cause the iPhone to freeze, resulting in a black screen. In this case, force restarting the iPhone can often fix the issue. To force restart your iPhone, press and hold the Sleep/Wake button and the Home button (for iPhone 6s and earlier) or the volume down button (for iPhone 7 and later) simultaneously for at least 10 seconds until the Apple logo appears. Of course, if there was a water damage or jailbreak attempt, there are small chances for recovery, but in many cases problem can be solved. However, before spending your precious time on handing your iPhone to a service center and paying money for its diagnostic, make sure you try the solutions listed in our guide below. Many users manage to fix the black screen of death on their iPhones fast and easily. Let's get started.

How to remove Basn Ransomware and decrypt .basn files

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Basn is a ransomware infection that targets various companies. Upon infiltration, it quickly scans the system for potentially important files (e.g., documents, databases, videos, images, etc.) and encrypts access to them. During this process, the virus also assigns its own .basn extension to highlight the blocked data. For instance, a file originally named 1.xlsx will change to 1.xlsx.basn and reset its icon to blank. Following successful encryption, the file-encryptor also drops a text file named unlock your files.txt with decryption instructions inside. Inside the note, it is made clear that the victim's data has been encrypted and extracted to cybercriminals' servers. To unblock the encrypted data and prevent leakage of data to shady resources/figures, extortionists demand victims to pay a ransom in Bitcoin or Monero cryptocurrency. The price is not disclosed in the note as it is likely to vary depending on the amount and value of encrypted data. Unfortunately, unless the virus has severe vulnerabilities that could be exploited, cybercriminals are usually the only figures capable of decrypting access to data completely and safely. For now, no third party is known to be able to bypass the encryption applied by Basn Ransomware. The only available options for data recovery are to either collaborate with ransomware developers or obtain data from existing backup copies. Backups are copies of data stored on external devices such as USB drives, external hard drives, or SSDs. The only downside of self-recovery is that threat actors may indeed publish the collected data and therefore damage the reputation of some companies if they are actually intended to do so.