VirusTotal’s 57 antivirus engines offer the best accuracy you can ever get. Neither the Sysinternals Process Explorer software nor the VirusTotal service cost anything at all. The whole setup process will take you about five minutes and the scan, which you can execute any time, takes less than a minute. Only malware in memory will be detected, but if you’re infected, very likely that malicious process will be running. Watch and learn how to download and run Windows Process Explorer to test all currently running executables on your Windows system.”]
Source: https://www.csoonline.com/article/3014290/a-free-almost-foolproof-way-to-check-for-malware.html