Try you can remove "security toolkit" using Trend micro internet security application. Download and run the 30 days trial pack to remove the security tool kit.
Please proceed to the following link to download the same.
You can unistall security toolkit by:
1.)Click on Start > My Computer.
2.) Double-click Local Disk C: then double-click on the Program Files folder.
3.) Look for the Trend Micro folder then open it.
4.) Look for the Internet Security folder then open it.
5.) Double-click on the TISSuprt.exe file. It has a red and white lifesaver icon. The Trend Micro Diagnostic Toolkit window appears.
Plese reply if it doesn't work.