Unofficial .rar or .zip files can harbor trojans or keyloggers disguised as game files.
C:\Program Files (x86)\Call of Duty Modern Warfare\Data\data\
If you want to manually check if the file is present in your system, navigate to the default installation directories below:
Right-click on and select Properties . Navigate to the Installed Files (or Local Files) tab. Click on Verify integrity of game files .
Locate the and Blizzard Entertainment folders and delete them.