Thunderbird: Real threat or fake alert?

[Guest WorriedCustomer]

Hi,

Eset Online Scanner detects a trojan in my Thunderbird inbox that no other virus scanner (Malwarebytes, Windows Defender) detects.

Is this a real threat or a wrong detection?

Thank you.

 

[Marcos 5,088]

Hard to tell without checking the file itself. If you can save it to a disk from a particular email in the mailbox, you can send it to me.

[Guest Cursomter]

I believe these nstmp files are temporary backups Thunderbird creates (multiple GBs big) and I wouldn't want to send you my emails