Cloudfront.net is a content delivery platform that some people abuse to distribute pop-up ads and malicious software. To remove Cloudfront.net, uninstall the programs responsible for the infection, and delete the malicious files by using a malware removal utility such as AdwCleaner.
On a computer that runs on Windows XP or a newer version, click on the Start button, and select Control Panel. Categorize the elements by selecting the Category option from the drop-down menu, and click on the Uninstall a Program link. Find programs such as SavePass, HQualityPro, Desktop Temperature Monitor or Couponarific in the list of installed programs, and click on the Uninstall button. Repeat the process for every suspicious program installed shortly before the infection occurred.
To remove the malicious files, download AdwCleaner from the ToolsLib website, and run the program once the installation is complete. Click on the Scan button in the main window, and check the boxes next to every detected threat once the scanning process completes. Click on the Clean button, select whether you want to save open files and documents before restarting the computer, and click OK. To ensure that you have removed all traces of the Cloudfront.net infection, access the Settings window in your Web browser, reset the personal settings and information, and start the browser again.