You may opt to hold onto MalwareBytes Antimalware
Update and run a Quick scan occassionally or uninstall it from Add and Remove Programs
Go ahead and delete Rsit.exe from desktop
and find and delete this folder
C:\
rsitI suggest that you add SpywareBlaster to your protection software
SpywareBlaster by JavaCool *Will block bad ActiveX Controls
*Block Malevolent cookies in Internet Explorer and Firefox
*Restrict actions of potentially dangerous sites in Internet Explorer
After installation, Check for updates
After updating, select "Protection Status" on the Left
Then select "
Enable all Protection"
"Check for updates every couple of weeks"after every update just simply click the
"enable protection on all unprotected items"or again, click on Protection Startus>>enable all protection
Take a look at miekiemoes site with other ideas on
How to prevent Malware:I hope that helps

http://images.thetechguide.com/forum/public/style_emoticons/<#EMO_DIR#>/smile.gif\' class=\'bbc_emoticon\' alt=\'

\' />