keep original filenames from zip file for virus scanning?

[Gerben Roest]

Hello,

I noticed that a javascript trojan slipped through because amavis
extracted the virus from the zip file to something like:

/var/lib/amavis/tmp/amavis-20170522T095840-15377-v7RlAZkS/parts/p005

and my virus scanner "esets_cli" didn't recognize that as a virus. I
noticed that esets_cli needs the .js extension (or .bat or something) to
recognize it.

ESET doesn't have a mode or flag to disregard any extensions, so my hope
is that I can tell amavis not to extract to p005 but to 15364.js for
instance. Is that possible?

Thanks,

Gerben