Jamper Ransomware is a nasty file-encryption virus, that uses AES algorithm to encrypt your files and extorts a ransom of 1 to 3 BTC (Bitcoins). This malware is the successor of VegaLocker (Vega Ransomware) and predecessor of Buran Ransomware. Jamper Ransomware, depending on the version, may add .jamper, .jumper or .SONIC extensions to files it affects. After ransomware activity, your files become inaccessible and unreadable. Malware creates ransom note file called —README—.TXT after it finishes. Jamper Ransomware removes shadow copies of files (VSS), disables recovery features of Windows, which makes it difficult to recover encrypted files.
Buran Ransomware is harmful crypto-virus, that uses AES encryption algorithm to encode your files and demands ransom in BTC (Bitcoins) afterwards. Technically, it is successor of VegaLocker (Vega Ransomware) and Jamper (Jumper) Ransomware. Buran Ransomware adds complex extension to affected files and uses special template: randomly generated 8-4-4-4-12 letters alphanumerical sequence. For example: .1C81A230-7B5F-4AE4-6F71-EB3958F83XXX, .62E93854-821C-3F0E-7556-D0F4F2E6E1C2. Files become inaccessible and unreadable. After successful encryption virus creates ransom note file: !!! YOUR FILES ARE ENCRYPTED !!!.TXT. Tips and tricks featured on this page will help you to recover at least some of the files encrypted by Buran Ransomware.
If you were attacked by the virus, your files are encrypted, not accessible, and got .poret, .heroset, .pidom or .pidon extensions, that means your PC is infected with STOP Ransomware (sometimes called DJVU Ransomware, named after .djvu extension, that was initially added to encrypted files). This encryption virus was very active in 2018 and 2019 and caused great financial damage to thousands of users. Unfortunately, there is very difficult to track down the malefactors, because they use anonymous TOR servers and cryptocurrency. However, with instructions, given in this article you will be able to remove STOP Ransomware and return your files.
Mapsnow.co and Maps Now are, accordingly, unwanted search engine and browser add-on, that modifies and controls browser’s settings in Safari, Google Chrome, Mozilla Firefox on Windows or Mac. Hijacker overrides default or user-installed values of search engine, home page and new tab with www.mapsnow.co website, that, in its turn, redirects search queries to search.yahoo.com. Developers of Maps Now application claim, that it provides quick and convenient access to maps and directions from the start page of your browser. However, in fact, it creates third party search page, with links to well-known online maps, such as Google Maps, Bing Maps and MapQuest. Sole purpose of this extension is to earn on advertising revenue from redirecting to other search engine, and probably, from promoting other websites and programs.
STOP Ransomware (a.k.a. DJVU Ransomware) is wide-spread file-encrypting virus-extortionist. This is one of the most dangerous ransomware with high damaging effect and prevalence rate. It uses AES-256 encryption algorithm in CFB mode with zero IV and a single 32-byte key for all files. A maximum of 0x500000 bytes (~5 Mb) of data at the beginning of each file is encrypted. Virus appends .stone, .davda, .lanset or .redmat extensions to encoded files. Infection affects important and valuable files. These are MS Office documents, OpenOffice, PDF, text files, databases, photos, music, video, image files, archives, application files, etc. DJVU Ransomware does not encrypt system files, to make sure Windows operates correctly and users are able to browse internet, visit payment page and pay the ransom. STOP Ransomware creates _readme.txt file, that is called “ransom note” and it contains instructions to make payment and contact details.