HijackThis is a Free utility that can be used to detect settings that may have been changed by Spyware or Malware. This Software is available as a stand alone executable, making for a great Portable AntiSpyware and Portable Anti Malware detection tool to add to your collection. The tool works by first scanning your computer for changes. It then displays items or settings that have been changed. You are then given the opportunity to selectively remove these items from your machine.
NOTE: HiJackThis does not actually know if your computer settings were indeed changed by Malware or Spyware. In some cases those settings may have been changed by legitimate software. So you should only remove or fix items if you are sure of what you are doing.
Detecting Setting Changes – HiJackThis
Authors Website: https://github.com/dragokas/hijackthis/
Download: You can get the Portable HijackThis tool HERE