From the doc: 'This utility runs a temporary web server on the machine on which it is run and then asks the Guptachar server to download the file from there.'
Backdoor.Guptachar.10.b [Kaspersky]Backdoor-SN [McAfee]security risk or a "backdoor" program [F-Prot]
gupt.exeinstall.exeqinst.exeupload.exe