Additional Details
Trojan-Downloader:W32/Swizzor downloads and installs a LOP.COM-related plugin that acts as spyware/adware and provides customized search capabilities. The download and installation occurs without a notification to the user and without the user's approval.
Swizzor may be silently installed on a user's computer while browsing the Internet (driveby download).
To remove the downloader, it's enough to delete its file from the hard drive.