This video tutorial is about "PowerShell “How to Scan the Malware(viruses, worms, Trojan Horses, spyware, and ransomware) | Malicious Software Removal Tool".
Microsoft's Malicious Software Removal Tool page says “This tool checks your computer for infection by specific, prevalent malicious software (including Blaster, Sasser, and Mydoom) and helps to remove the infection if it is found.”