The application installer_driver_crystal_cs4281_spanish.exe, “Tunorobemo Setup ” has been detected as a potentially unwanted program by 11 anti-malware scanners. The program is a setup application that uses the Inno Setup installer, however the file is not signed with an authenticode signature from a trusted source. Infected by an entry-point obscuring polymorphic file infector which will create a peer-to-peer botnet and receives URLs of additional files to download.