I recommend that you perform a thorough malware scan of your system and take appropriate action to remove any malicious files that are detected.

Finally a response to my query to Webroot support team:
"Wehave examined the logs from your system and found that the detected items werethe result of a false positive, and are not a threat. We have updated oursecurity definitions to address this."

So, on the next pull of security definition, the issue will not  show anymore, I guess...

perform malware scan

it is malicios file

It is a malware

it is right a malicious file