HijackThis is an application for detecting and removing a variety of malware (mainly malware and adware) from the system. HijackThis explores the system registry and identifies potentially malicious entries in it. They must be removed by the user.
Upon installing the software, it scans all of the running files on your PC and all the servers where your files are registered, detects viruses and malware on your computer, quarantines it, and deletes files. Although it is an effective antivirus, it simply identifies the threats for you to resolve and requires removal.