Yesterday I received an email supposedly from DHL (I was expecting one), but thought it looked a little strange. I scanned it with Avast and the message was "no threat found", but I decided to delete it anyway. The email it came with, I tracked back to Alicante in Spain.
Since then, my Avast keeps warning me that it has blocked a threat (have a look at the screen capture attached), but a boot scan and MBAM scan both prove negative. HJT log is clean and the threat keeps changing its location and file name.
Is this a real threat? Has anyone seen this before?