in using the above laid out procedure wherein the disk is removed and scanned outside the installed OS, almost invariably it has been my experience that doing what you describe hoses the OS. Perhaps 1 out of 10 has proven to rid the system of infection without destroying essential system files.
I only bring this up as a matter of curiosity due to so many suggestions in using this procedure. So, my thoughts are, "Why does this continue to be suggested? Is it old news for older malware variants? Perhaps a case of ones choice in utilities used?" Either way, in this day and time I find it to be an unacceptable procedure as opposed to backing up user data and reinstallation of the OS and user Apps (which incidentally I find to be a major P.I.T.A).
Today, and indeed since its arrival on the scene, if Malwarebytes and/or Combofix and occasionally HiJackThis fail to fix the issue, I generally move on to what I call the Answer To Everything or ATE procedure. By this time I usually have a little less than an hour in troubleshooting the matter and can accomplish the ATE process within enough time to avoid pricing myself out of business.
Just saying, for one whose livelihood depends on this (Outside of the Corporate Environment where the ability to direct choices of hardware/OS/Application plays a major role in choosing to use an image) it seems to me to be a fruitless endeavor.
Also, please do not misunderstand my post as an invitation to flame. I am always up for suggestions and seeking new avenues to efficiently achieve the same goals.
Edited to note, +1 on TDSS issue though. This is one I spent a good deal of time on myself. Sometimes, though it costs you time which in turn equates to money, you just don't want to give in to the bastids (malware coders).
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