CryptoLocker is a ransomware that squeezes money from users by encrypting the personal files with AES-265 and RSA algorithms. After the installation CryptoLocker inserts a randomly named executable file into %AppData% or %LocalAppData% folders. This executable is created for detecting the files for enciphering. It will change the extension of your media files and documents to .7z. CryptoLocker affects executables to prevent you from using the shadow copies.
UltraCrypter is updated version of previously described CryptXXX virus, that can be called CryptXXX 3.0 ransomware. Malware developers made some crucial changes, that are not very pleasant for potential victims. It still uses AES CBC 256-bit encryption algorithm, but now it adds .cryp1 extension to encrypted files. Ransom is 1.2 Bitcoins (around 500$). Bad news are, that now decryptors for CryptXXX does not work. That means the only chance to decrypt UltraCrypter-affected files is if you have external backup or enabled Windows service that will store previous versions of your files.
Myhomepage-7.info is program that comes to your computer in the form of an extension to the browser (Google Chrome, Mozilla Firefox and Internet Explorer). This program displays advertisements, banners and coupons. This program infects a computer without the user's consent. Myhomepage-7.info can advertise goods of such popular sites like Amazon, eBay and the like. Also, Myhomepage-7.info can change your homepage. Myhomepage-7.info changing your browser options, and adds its toolbar. Also, it can redirect the user to ad sites. The main goal of the developers is to make money.
oolExt is program that comes to your computer in the form of an extension to the browser (Google Chrome, Mozilla Firefox and Internet Explorer). This program displays advertisements, banners and coupons. This program infects a computer without the user's consent. CoolExt can advertise goods of such popular sites like Amazon, eBay and the like. Also, CoolExt can change your homepage.
Search.searchotva.com is a browser extension that comes bundled with free software without the user's knowledge. Search.searchotva.com is not a virus, but this program is one of the potentially unwanted software. It hijacks your browser (Google Chrome, Mozilla Firefox or Internet Explorer). According to the developers, Search.searchotva.com designed to help users to make purchases over the Internet. Search.searchotva.com finds the best offers. Not many people are aware that this is a real scam. In fact, most of the proposals are false.
