What is MarketScore and how can I remove it?

MarketScore (the commercial name) or ossproxy (the program name), previously called Netsetter, is a program advertised to enhance Internet speed. However, if it is installed you will not in fact notice an increase in speed. Rather, this software poses a threat by installing a trusted certificate authority in your browser and routing all your web connections through its proxies, logging and analyzing them on behalf of MarketScore's customer sites. This includes Secure Sockets Layer (SSL) traffic, which it decrypts, then re-encrypts, and communicates with your target host.

Be aware that the MarketScore service collects, analyzes, and stores everything you send to and receive from any web site. This includes passwords, credit card numbers, and email (if you use a browser-based mail program).

Many spyware removal programs, such as Windows Defender, can find and remove MarketScore.

Also see:

• On my PC, why am I having network problems after installing file-sharing software?
• What is CommonName software, and how do I remove it?