The application topsadon1u.exe by neomedia has been detected as a potentially unwanted program by 5 anti-malware scanners. This is a setup program which is used to install the application. It is set to automatically execute when any user logs into Windows (through the local user run registry setting) with the name ‘topsadon1u’. This is a trojan Bot that uses IRC to communicate with a comand and control network. The Trojan drops other malicious software and opens a backdoor on the infected computer and will run automatically on each boot.