Multiple Online Malware Scanners

The online malware scanners mentioned previously allow you to scan your computer for malware on demand. But this will take time and only one malware engine can be active at one time. If you only need to scan certain files, you can use the following free services:

1. VirusTotal
   
2. Virus Org

These services are powered by the engines of multiple antimalware companies which can help you to determine any false positive if only one vendor finds it.