Backdoor Details – Binary Analysis Stage 1 injector The analysis in this blog is based on this ZIP archive: Advanced-ip-scanner.zip (SHA256:7966ee1ae9042e7345a55aa98ddeb4f39133216438d67461c7ee39864292e015). The ZIP archive contains two files: Advanced-ip-scanner.exe: A renamed copy of the legitimate Microsoft EXE oleview.exe. IVIEWERS.dll: A 22 MB DLL, which contains the stage two payload. This DLL is padded with an unused […]