This is actually important to note: the software depends on an unsigned 32 bit kernel module. If it were 64 bit, it would have to be signed to function, so this

This is actually important to note: the software depends on an unsigned 32 bit kernel module. If it were 64 bit, it would have to be signed to function, so this particular piece of malware will only work on Windows 32. That said, there might be Bundestrojaners for 64-bit Windows. Or even entirely different operating systems.