Is this for use with Virus Total?

Hey frob! Yeah — that's right, submission to a HTTP endpoint, either a service that is remotely managed like VirusTotal or a HTTP endpoint that you manage to validate files.

For the initial release of this module, the HTTP request and response are hard coded so it might be 100% compatible with the VirusTotal spec. You can customise the name of the file upload and the key which the module will look in from the response but if it expects are more complicated request/response schema we'll need to accommodate a more pluggable solution to support that backend properly.