REKTLocker is cryptographic virus, that that belongs to the category of ransomware viruses. It uses RSA-2048 encryption to encrypt important user files and adds .rekt to all affected files. Decryption key is stored on the remote server that is controlled by malefactors, that makes it very hard to decrypt files without paying the ransom. By the way, hackers demand a ransom of 1 BTC for the private key they will send to you.
MyTransitGuide is toolbar that hijacks Chrome, Internet Explorer or Mozilla Firefox. At first glance it seems like a very useful program that provides user access to information about bus stations, tickets, routes, subway maps, and so on. But in reality this is not so. This changes the search engine and search results. Also, this hijacker can redirect user to other sites without his consent.
Safesear.ch is a browser extension that drives the popular browsers such as Google Chrome, Mozilla Firefox, Internet Explorer. Safesear.ch comes to PC bundled with other software without the user's consent. It looks like an ordinary search engine (eg Google, Yahoo or Bing) with a set of useful buttons for quick access to the social pages, or popular sites.
Mindspark Toolbar is a browser extension that comes on a PC bundled with free software without user consent. Most often, users do not notice that Mindspark Toolbar infiltrates into the their system. For example, when you are going to download an archiver, movie or program you click on the "Download" button. After that you get a web client that hides in itself the toolbar. After installation it adds a toolbar into your browser.
Search.safefinder.com is a hijacker that gets into computer bundled with freeware. It can hijack IE, Chrome, or Mozilla. Search.safefinder.com looks like a typical search engine. In fact, it shows a huge amount of advertising, banners or coupons. Also, it shows a false message about the need to upgrade your browser, Flash Player or Java. Search.safefinder.com changes your browser settings, homepage, default search engine.
