Private.myquicksearch.online is a browser hijacker that changes the home page and the default search engine in your browsers installed in the system (chrome, Mozilla, IE, Edge and so on). The hijacker constantly redirects the user to the search page, which looks similar to legitimate analogs, moreover, offers the possibility of surfing in incognito mode, leaving no traces. In reality, Private.myquicksearch.online is not so good and useful.
Pdfmaster or Pdfmaster.net affiliated with Smallpdf.com is a search provider, which, despite smart design and useful functions may be classified as potentially unwanted program. It's because Pdfmaster.net has own search engine and collects and shares users personal data for commercial purposes.
Smallpdf.com affiliated with Pdfmaster.net is a potentially unwanted program designed in Switzerland. Despite different useful functions, it may be classified as a potentially unwanted program. It's because Smallpdf.com has own extension, which collects users personal data for commercial purposes. It leads to increasing promotional materials in search results, permanent redirecting of users browser to the sites with the great number of ads, and also to sharing of users personal data to Smallpdf.com commercial partners
Search.htheweathercenter.co is a browser hijacker that changes the settings of Chrome, Edge, Mozilla, IE and other browsers that are available on your system. According to the developers, this search engine is designed for quick access to popular weather forecast resources, and also has useful buttons for quick access to Amazon, Google's mailboxes and Yahoo and other popular sites and social pages.
If you notice that the search engine and homepage of your webservers have been changed to Safesearchprotect.com, then most likely your computer is infected with a Safesearchprotect.com browser hijacker. As mentioned above, this changes the settings of Chrome, IE, Mozilla and other browsers installed in your Windows. Outwardly it looks like a legitimate search engine, similar to Searchincognito.me described earlier.