Help:I may have a virus/malware on my Mac or Chrome.
I did a bad thing. I thought I was downloading some music from the Internet (I don't remember the site). It was a DMG file, and I made the mistake of installing. I quit the install mid-way, but something bad must have happened.
My MBP (late 2011) slowed down. I moved the file to the trash, but when I tried to empty the trash, it kept getting hung up. It said that a program in the trash was running. I checked my activities and didn't see anything. I did a hard-shut down of the computer. When I turned it on again, everything was very slow. I tried to empty the trash again, and eventually, after a few minutes, it completed. (I've deleted a lot of stuff from my computer, it never took this long.
Now, it seems that the computer runs slow doing basic tasks. More important, I'm getting tons of pop-up ads and new window ads when I use Chrome. (It doesn't seem to have affected Safari.) I cleared the cookie, browsing history and everything else from Chrome, but the problem is still happening.
Any ideas how to deal with this? I'm worried about opening Chrome on a different computer in case whatever is in my Chrome "profile" gets sent over.
Is there a good way to scan my Mac for viruses and malware?