Note: Both client and server are not Windows. The attached file type is a 
generic "data" on unix. On a Windows client the file runs as executable. A SA 
rule should merely detect that the file type is a generic "data" file.
-------- Original Message --------
On Feb 7, 2023, 11:15, Rupert Gallagher wrote:

> I received a spam with score -1. Well written, looks legit commercial, asking 
> for a quotation, with details in the attachment, a 3MB file with unknown 
> extension ".one".
>
> The file turns out to be a Windows Trojan:
>
> https://www.virustotal.com/gui/file/f4d587f60f2d34add9f77fcbd8c3c0df3ca51cfaecd9de85c45d25647eaac40b
>
> Both SA and ClamAV passed it as legit.
>
> We should have a SA rule that says: "attached file with unknown data type".

Reply via email to