File name at receiver end should be same as source(file name can't be known) without mapping

Dear Masters,

i have a scenario where the file will be picked up at source FTP and file name would be *.* ...so exact filename can't be known,

now the exact file name should be replicated at the target FTP, this File to File scenario doesn't require mapping, so can't use variable substitution..

so any ideas...will be appreciated.

thanks in advance...😊