Malware
Marap
Marap is a downloader, named after its command and control (C&C) phone home parameter "param" spelled backwards.
Marap is a Windows malware family.
Background
Marap is a downloader whose name comes from reversing the spelling of "param", the parameter it uses when phoning home to its command and control (C&C). Coded in C, it ships with several noteworthy anti-analysis features.
Source: Malpedia (Fraunhofer FKIE).