Win32/Heur, also mentioned as Virus Win32 Heur is a dangerous self-mutating polymorphic trojan virus, typically installed on windows system without victims knowledge. The Win32/Heur virus infects PC's via dubious filesharing applications, corrupt media files, spam emails and porn related web sites. Onec infected, Win32/Heur virus will modify Windows win32 system files, and install additional trojans, worms and viruses onto the infected computer. The Win32/Heur trojan is usually detected with the "Virus found Win32/Heur" alert and may activate fake Dr. Watson security warnings and redirect Internet Explorer and FireFox browsers to sites like ripetv.com or crackle.com. Trojan Win32/Heur malware is severe security risk that can disable antivirus and firewall software and hijack both local and network computers.