I have one user who gets this pop up error in the Symantec on her PC. U have run manual scans with it and Malwarebyets and found noting. The server manager reports show nothing for that machine. I have attached a screen shot of the popup. Is it a virus I need to be concerned about?
Symantec Endpoint Protection
[SID:24454] Attack: Apache & IIS Range Denial of Service Vulnerability Detected.