Yahoo mail has a PDF attachment from a valid source. This is a legitimate attachment that was expected from a bank, not just a random email.
Clicking on Open or Download causes Avast to show the red message and block a "malicious URL".
This has to be a false positive. Yahoo certifies they scanned the message with Norton. If I disable Avast, download the file and scan with avast, it is clean. This is happening with other pdf attachments on yahoo today as well.
Can you verify and fix?
Win7 64 bit Home Premium.
Avast Free: 6.0.1367