Browser Hijackers

Definition

A browser hijacker redirects, without a user’s permission, an existing home page, search page, or other Web site to a location of the hijacker’s choosing. Generally, the intent of such redirection is to artificially inflate traffic to a particular site, expose the user to adware, or other nefarious purposes. Browser hijackers often behave like, and spread via, spyware.

How to protect your network, servers, pcs and mobile devices from browser hijackers

• Implement a multi-layered Internet security protocol that provides antispyware protection.
• Implement both a network and a desktop firewall.
• Keep all browser security patches up to date.
• Educate employees about the latest threats, symptoms of infection, and how to protect servers, PCs, and mobile devices:
• Follow all recommended policies and procedures to protect against spyware infection.
• Do not disable enterprise antivirus, anti-spyware, or firewall protections.
• Seek IT support if you experience any of the following:
• Your search page results appear suspicious or “off.” For example, if you type a specific keyword (such as “myfavoritecompany.com”) into your preferred search engine, and ”myfavoritecompany.com is not the top result, you may be the victim of a browser hijacker.
• You notice your home page has been reset; or, you receive notification that a program is attempting to reset your home page.
• Unusual pop-up ads begin appearing on your desktop or within your browser.

What may happen if you don't adequately protect your technology assets against browser hijackers

• Vulnerability to spyware and adware, and their associated threats.