NIS detected threat but not removed

Hello I have been using NIS 2012 and lining it so far.. I was testing NIS 2012 with some malware taken form malc0de. com

 

Norton however did not detected it using the auto protect. andwhen i have donw the insight scan, norton didn't detected any threats.

Scan Statistics:
  Scan Time: 0 seconds
  Scan Targets: C:\Users\varun\Desktop\snooper.exe
  Counts:
   Total items scanned: 1
   - Files & Directories: 1
   - Registry Entries: 0
   - Processes & Start-up Items: 0
   - Network & Browser Items: 0
   - Other: 0
   - Trusted Files: 0
   - Skipped Files: 0

   Total security risks detected: 0
   Total items resolved: 0
   Total items that require attention: 0

Resolved Threats:
No risks have been resolved

Unresolved Threats:
No unresolved risks

 

But when i tried to open the malware, Norton did removed it as it says in the image.. But I have to refresh my desktop to confirm that the threatis cleaned by norton

Please observe this odd behaviour of NIS 2012

 

odd.jpg