Download- Nwdz Andr Aydj Mhjbt Sl Tlb Bbzazha... -

The file arrived without a name. Just a string of gibberish: nwdz andr aydj mhjbt sl tlb bbzazha...

The download wasn't the message. It was the warning. Download- nwdz andr aydj mhjbt sl tlb bbzazha...

I tried a Caesar shift. Nothing. Then a keyboard offset: left one key. The file arrived without a name

"This file is encrypted. Enter passphrase." Download- nwdz andr aydj mhjbt sl tlb bbzazha...