
PC TuneUp Maestro is a forged potentially unwanted program that, according to developers, makes your computer run faster. It is promoted as a system optimizer. After launching, the program will show you a lot of errors like outdated registry entries were been found on your system. Nonetheless, if you want to fix them, PC TuneUp Maestro will report that you must buy a full version of its program.

Yardood.com is a browser add-on that, upon the application of developers, enhances your Internet browsing experience. In sober fact, this is bare-faced lie. The behaviour of this program could be categorized as a hijacker. This infection tends to impact your internet browser by setting your homepage and search engine to either us.yardood.com, fr.yardood.com, yardood.com, or uk.yardood.com. It will prevent all your attempts to restore your browser settings like it was before. Except that, the fake altered search results have no benefits for users, they can also redirect you to websites containing more dangerous malicious infections.
Searchz.co is a malicious application that could be classified as a browser hijacker. The homepage of Searchz.co looks like other familiar search engines like Google or Bing. Once activated, it will modify your browser homepage and search engine to search.co without any consent. Moreover, it will prevent you from changing settings back. The problem is accentuated by the presence of obtrusive advertising. Annoying pop-ups, banners will fill up every page of your browser that could not only affect to your browser experience but could cause more dangerous infections to your system.

Uc123.com is a nasty browser hijacker from China, that will switch your home page and search engine of web browser to http://www.uc123.com. At first sight, it may seem the Uc123.com is genuine search engine that would facilitate you surf the web with so much ease. Actually these search results, displayed on the windows of your browser, will always redirect you to unknown web sites. Technically, Uc123.com can't be called virus, but links to the untrusted sources may contain viruses or other threats for your system.

123Rede.com is a browser hijacker originated in Brasil, that changes your browser settings. Developers mislead the users promoting their product as a convenient tool that facilitates routine in the network. However, nothing could be further from the truth. After successful infiltration into your system, hijacker sets the default search engine, homepage and new tab URL settings to 123rede.com without user consent.