Compress .exe files with this tool.UPX front-end is an easy to use GUI for UPX 1.2x.
http://downloads.sourceforge.net/project/upxfe/UPX_Front-End_1.0.4.tar.bz2
[CTF入门培训]顶尖高校博士及硕士团队亲授《30小时教你玩转CTF》,视频+靶场+题目!助力进入CTF世界