UPX ('Ultimate Packer for eXecutables') is a portable, extendable, high-performance executable packer for several different executable formats. It achieves an excellent compression ratio and offers very fast decompression.
UPX: unknown format. [Kaspersky]
upx.exeupx_beta.exeupx_gui.exeupxgui.exe
anti-pp.dllDocuments and Settingslocal settings empsyscom.dll