UPX (10405d32-26a6-419b-9dde-4ac337bfe2f4)
UPX is free and open-source packer/file compressor software.[GitHub upx upx] It has been abused by adversaries such as the BianLian Ransomware Group to pack their malicious executables in an effort to evade detection.[U.S. CISA BianLian Ransomware May 2023]