It does appear that it's only the 32bit version installer that contains the malware payload. A lot of other sources are now reporting on this now, too, and saying that it's the 32bit version that has taken the hit. But remember, the downloader comes with both 32 and 64 bit versions. Apparently the one that runs is determined by your OS bit size. As it seems absurd to run a 32bit version of Windows on ANY current hardware, that might end up being the saving-grace here. But if you have the 5.33 installer on your system, the payload is there whether installed or not. I would still recommend anyone with this version run a full scan of their system to be on the safe side, and regardless of your bit size. If by chance any of you do have 32bit Windows installed, it's time to backup your data, wipe, and reinstall. Scan your data before moving back onto your fresh, clean copy of Windows. The good news is that this appears to be more of a botnet than something really malicious like ransomware. Could still possibly be used to install something more serious. Be safe everyone!