Speed Browser is able to sneak into your PC with the help of 'bundling' programs and it has the capability to hijack your browsers, so it is categorized as a PUP(Potentially Unwanted Program). Usually, it is distributed with the help of freeware or shareware that are shared on the Internet. What's more, it is able to hide in junk files which are dropped into your system. Some times, it can hide in junk email attachments or malicious links. Therefore, it is wise to install a powerful antivirus like SpyHunter to scan and stop various computer threats getting into your PC.