Tutorials

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.

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.

Dazx Ransomware is a version of the STOP/Djvu ransomware family. It is a type of malware that encrypts the files on a victim's computer and demands a ransom payment in exchange for the decryption key. When the Dazx Ransomware infects a computer, it will encrypt the victim's files using a strong encryption algorithm, making them inaccessible to the victim. Malware uses a symmetric encryption algorithm to encrypt the victim's files. Specifically, it uses the Salsa20 stream cipher to encrypt the data. The encryption key is generated randomly for each victim, and it is stored on the attacker's server. The encrypted files will have a new extension added to their filenames, such as .dazx. The Dazx Ransomware also creates a ransom note file called _readme.txt in every folder that contains encrypted files. This file contains instructions on how to pay the ransom in order to receive the decryption key. The ransom note also warns the victim against attempting to decrypt the files using third-party software, as this can result in permanent data loss.

While trying to update or restore their iPhone/other iOS devices, some users get stuck in the recovery mode, which shows to connect to a computer. At the same time, users can often see the support.apple.com/iphone/restore message on top of the screen. This problem is pretty common across iOS devices like iPhones. Luckily, solving this issue should not be a big deal. Follow our guidelines below to exit this recovery mode and update or restore your iPhone again. Note that for the majority of solutions, you will need to have a computer (Mac or Windows) and a USB cable from your iPhone. This screen usually appears on an iPhone when there is a software issue that prevents the device from functioning properly. This can occur when the iPhone is stuck in a loop, unable to boot, or experiencing other issues that prevent it from operating normally. To restore the iPhone using the support.apple.com/iphone/restore screen, you will need to connect the device to a computer with iTunes installed. Then, follow the on-screen instructions to put the device into recovery mode and initiate the restore process. There is also easier way to fix it, that we describe in this article.

Code is the name of a new ransomware variant that infects organizations in order to run encryption of data and extort money in return for the decryption key. During encryption, it appends the .code extension and creates a ransom note (called !!!HOW_TO_DECRYPT!!!.txt) with instructions on how to decrypt the blocked data. Here is what an infected file would look like after encryption - 1.pdf.code, 2.png.code, and so forth with other file types targeted by the virus. In the note, cybercriminals try to persuade victims into paying the ransom for decryption. It is said victims have to install the TOX messenger and write to extortionists using the provided TOX ID. Unless victims meet these demands and refuse to purchase decryption, threat actors threaten to start randomly sharing the encrypted data with other parties or leak/sell it on the dark web and other shady resources.

Dapo Ransomware is a variant of the STOP/Djvu Ransomware, which is a type of malware that encrypts files on a victim's computer and demands a ransom payment in exchange for a decryption key to restore the files. During the encryption this malware modifies file extensions to .dapo. After the encryption process is complete, the ransomware drops a ransom note on the victim's desktop and in every folder that contains encrypted files. The note contains instructions on how to pay the ransom in order to receive the decryption key. The attackers usually demand payment in cryptocurrency, such as Bitcoin. It's important to note that there is no guarantee that paying the ransom will result in the decryption of the files. In some cases, victims have paid the ransom but never received the decryption key, while in other cases, the decryption key provided by the attackers has been found to be ineffective. The ransom note file name used by Dapo Ransomware follows the same naming convention. The file is named _readme.txt. The ransom note contains instructions on how to pay the ransom in order to receive the decryption key, and it typically includes an email address, that the victim can use to communicate with the attackers.

Nexus is the name of a banking trojan that targets Android devices in order to extract banking and finance-related information. According to the detailed research conducted by Cyble, this trojan is assumed to be a rebranded version of the S.O.V.A trojan which has similar capabilities. As a rule, banking trojans acquire access to the targeted device by disguising themselves as legitimate apps and asking users to enable Android Accessibility Services in order to use the app's features or the app itself. Unfortunately, if permissions like this get enabled for trojanized apps, they will misuse them to grant additional permissions, prevent users from disabling them, and turn off various security measures like Google Play Protect. It is known that Nexus targets over 40 popular banking applications. To force users into entering sensitive information (e.g., passwords, passcodes, IDs, usernames, etc.), the virus downloads the appropriate HTML injection code to create a fake overlay of a specific bank app that a victim is using. This way users enter their log-in credentials without suspecting they could be recorded and sent to the cybercriminals' servers afterward.

Qarj is a new ransomware variant developed and published by a template of notorious STOP/Djvu family. This particular variant was released in March 2023. Being a file-encrypting virus, it blocks access to personal data by using secure encryption algorithms. This means that files stored on a PC will no longer be opened by users until they are decrypted. Currently, there are smal chances for decryption of files encrypted by Qarj. Only 1-2% of cases are decryptable, when certain conditions are met. Use all instructions on this page until you get some data restored. In order to show that all files have been put under a lock, developers append the new .qarj extension to each of the files. For instance, a file sample like 1.pdf will change to 1.pdf.qarj and reset its icon eventually. After this part of encryption is finished, the virus creates a text note (_readme.txt) with ransom instructions.