us-srch-system.com is a search engine hijacker that occupies your web browser's default search engine and takes control of it. us-srch-system.com search results usually come from paid advertisements created by the authors of us-srch-system.com when a PC user is searching something on Google or any search engine. us-srch-system.com search redirections are closely related to a dangerous Zero Access rootkit. If your computer is infected with a malicious Zero Access rootkit infection, you will get continuously redirected to malicious websites including us-srch-system.com. us-srch-system.com blocks you from changing your browser's default search engine and slows down PC performance. You need to configure your browser settings to get rid of redirections to us-srch-system.com and remove the associated malware infection by using a legitimate and effective anti-virus software.