DNS Changer Check-Up – Clean Written by Randy on July 6, 2012. Posted in Antivirus, Internet, Randy's Blog, Security, Tech Check out your computer Now using the link below to see if you are susceptible to the DNS Changer exploit. DNS Changer Check-Up – Clean. Tags: Checkup, DNSChanger, Malware, Security Trackback from your site. Leave a comment You must be logged in to post a comment.