Hello. A few days ago, I downloaded some software for my MBP. When I installed the .dmg file from MacUpdate, I had a few warning messages that I did not notice at the time. There were a few viruses detected, and what worried me the most was one that stated "Vulnerability (System Infected: OSX Backdoor Activity 10) blocked." I ran a virus scan later, and it returned nothing. I also ran a AVG scan and it returned nothing. Should I be concerned at all (since I did install the software...but now deleted it)? I've read that some trojans can constantly change to avoid detection. And I've read that some Mac trojans will screen cap all of your activities. I'm wondering if I should wipe my drive, or if I'm just being paranoid. Thanks for your help!