<ul data-eligibleForWebStory="true">Browser hijackers are malicious programs that control web browser settings without user consent.api.cactus-search.com is a browser hijacker that changes the search engine to cactus-search.com and can be installed as an extension or program.Signs of api.cactus-search.com infection include changes to the default search engine and redirection through cactus-search.com.To remove api.cactus-search.com, first uninstall any associated malicious programs from the Control Panel.Reset browser settings back to default settings in Chrome, Firefox, and Microsoft Edge to remove api.cactus-search.com.Use Malwarebytes to scan and remove the browser hijacker from the infected device.Malwarebytes offers a rootkit scan feature to find and remove rootkits from the device.