Emails with the sender "scanner@rhrk.uni-kl.de"

The email program shows"scanner(at)rhrk.uni-kl.de" as the sender (however, the actual sender is a spammer outside the TU). The subject line begins with "Message from "CUKPR......." followed by a number. This email has a ZIP file attached containing a variant of the Locky Trojan. Please do not open the attachments to these emails.