Open Source and free under the GNU General Public License (GPL)

Manage your block and pass lists

Event log shows real-time spyware detected and blocked

Reports track violations in summary, detail, and by user

Special Unblock feature is an option that administrators can give to users for bypassing and/or whitelisting websites on Untangle's blocklists

The battle with spyware is constant and its infection is insidious - you may not even know you have it until it's doing real damage to your network. Weird settings, an abundance of pop-up ads (even when you're not on the Web), clicking hyperlinks that don't work and a sluggish system are just a few of the symptoms to look out for. Stop spyware, adware and malware before it makes it to your network and find already infected computers with our powerful Spyware Blocker. We use a wide range of cutting-edge technologies, including URL blocking, cookie blocking, ActiveX blocking of bad vendors and subnet logging, to protect you from attacks and infections.

Untangle Forums: Spyware Blocker
Untangle Wiki: Spyware Blocker

Spyware Blocker examines web requests from your protected network and does the following:

Uses virus signatures to detect and identify specific viruses

Prevents keystroke-loggers that steal passwords while users type

Provides a URL blacklist to block known spyware websites (for example, gator.com)

Provides a URL blacklist to block websites that require cookies

Blocks harmful ActiveX controls that are known to be spyware applications

Examines the IP addresses of websites that users visit, and compares those IP addresses against a list of offending subnets