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How to remove Koom Ransomware and decrypt .koom files

Koom Ransomware (subtype of STOP Ransomware) continues its malicious activity in December, 2020, and now adding .koom extensions to encrypted files. The malware aims most important and valuable files: photos, documents, databases, videos, archives and encrypts them using AES-256 algorithms. Encrypted files become unusable and cybercriminals start extorting ransom. If the hacker server is unavailable (the PC is not connected to the Internet, the server itself does not work), then the encrypter uses the key and identifier that is hard-coded in it and performs offline encryption. In this case, it will be possible to decrypt the files without paying the ransom. Koom Ransomware creates _readme.txt file, that is called "ransom note", on the desktop and in the folders with encrypted files. Developers use following e-mails for contact: and Hackers demand $980 for the decryption of your files (the message states, that victims will get a 50% discount if they'll contact cybercriminals within 72 hours after the encryption). According to many reports, malefactors often don't reply to victims, when they receive ransom payment. We strongly do not recommend paying any money. Files encrypted by some versions of Koom Ransomware can be decrypted with help of STOP Djvu Decryptor. Dr.Web specialists decrypted files encrypted with some variants of Koom Ransomware in private. Dr.Web does not have a public decoder. Before trying to decode the files, you need to stop the active process and remove Koom Ransomware.

How to fix Windows Update error 0x80070424

0x80070424 has been an update error spanning its roots from Windows XP to these days. Like many, the error pops whilst trying to install new updates with the following message: "There were some problems installing updates, but we'll try again later. If you keep seeing this and want to search the web or contact support for information, this may help: (0x80070424)". This is where it ends with no real solution proposed by Microsoft. Luckily, further discussion on forums and troubleshooting blogs helped users form a list of solutions that can address the 0x80070424 code. As a rule, such errors occur because some files are missing or corrupted, there is a damaged or disabled configuration for some services, and third-party software causing a conflict. It is only possible to suspect which one of these reasons affects your case of occurrence. This is why you should try each available solution until the issue ends up resolved. You can find the list of them in our tutorial below.

How to remove

0 is a pop-up type page that displays fake messages meant to fool users into allowing push-notifications. The website says you should click on the "Allow" button to confirm that "You are not a robot". In fact, this action will simply allow the rogue website to send a stream of unwanted ads straight to the desktop. The displayed ads can, therefore, look useful, but actually hide redirects to suspicious or malicious pages. If you have been caught by this trick, we advise you to stay away from clicking on the promoted ads no matter the case. Also, if you see appear constantly at the browser startup, this means you are likely infected with unwanted software like adware. Whatever the case, feel free to use our guide below to get rid of the redirects along with its side effects from your computer.

How to remove TempoSearch

TempoSearch is the name of an unwanted search engine that installs over the default browser settings. Software with such traits is more known as browser hijackers and exists in the form of extensions or desktop programs. Users affected by TempoSearch are redirected through the address. This hijacker does not seem to employ any intermediary search engines like Google, Yahoo, or Bing as it would oftentimes be with other hijackers. However, despite it is a standalone engine, TempoSearch is doubted in its efficiency to generate high-quality and safe results. It may also run data surveillance and collect it for selling purposes. In other words, information like passwords, IP-addresses, and geolocations can be observed and abused by the frauds for personal benefit afterwards. This is why keeping TempoSearch on your PC can raise security threats and diminish your browsing experience. Traditionally, most users struggle to uninstall hijacker extensions on their own as they keep coming back endlessly. If this is your case, make sure to follow our guide below to get rid of the TempoSearch redirect completely and without traces.

How to remove BlackByte Ransomware and decrypt .blackbyte files

BlackByte is the name of a data-locker that encrypts files stored on a device. Such malware is more known as ransomware because it extorts money from victims for the recovery of data. Even though BlackByte is new and little observed, there are enough details to differ it from other infections. One of them is the .blackbyte extension that is appended to each encrypted file. For instance, a piece like 1.pdf will change its extension to 1.pdf.blackbyte and reset the original icon. The next step after encrypting all available data is ransom note creation. BlackByte generates the BlackByte_restoremyfiles.hta file, which displays recovery details. Within, victims are instructed to contact cyber criminals by e-mail. This action is mandatory to receive further instructions on how to purchase a file decryptor. This decryptor is unique and held only by cybercriminals. The price of ransom can vary from person to person reaching hundreds of dollars. Keep in mind that paying the ransom is always a risk to lose your money for nothing. Many extortionists tend to fool their victims and not send any decryption instruments even after receiving the requested money. Unfortunately, there are no third-party decryptors that can guarantee 100% decryption of BlackByte files.

How to remove (

Both and domains are marked down as fake search engines that hijack browser settings. Users that enter various queries into the search bar will be redirected to and then end up on Initially, is a legitimate e-mail and news portal popular in Russia. However, is fake and has nothing to do with the legitimate page. It simply mimics the appearance to look as indistinctive as possible. People infected with browser hijackers are likely to face an additional stream of ads on various websites as well. and display a number of unwanted banners based on your browsing activity. This way, hijacker developers ensure they have passive income from advertising traffic created by infected users. These and more unwanted changes can lead to many inconveniences and privacy threats, thus, everything related to should be removed from your PC. To do this, follow our guide below.