My apologies for not responding sooner. I tracked this thread, but never received a notification. I just now saw your post. I'm sorry you experienced a problem with the use of TDSSKiller. However, I feel it's important to make some things clear.
We have recommended the utility countless times, at the Spyware, Viruses & Security forum, after (and when) MBAM and SAS report you clean. We would NOT do so, if we felt it might pose a problem for the members. There are tools we hesitate recommending, for just that reason. TDSSKiller is NOT one of those tools.
I never suggest the use of a tool, I haven't first tried myself. Additionally, I've personally cleaned many a system, where the TDSSKiller has helped. Never once experiencing a problem. There may have been extenuating circumstances in your case. If there were, I wouldn't know.
You may not have any interest (at this point) in reading 8 pages worth of positive feedback about the TDSSKiller, but it's here, if you wish to read it. Or if anyone else, who may now have some doubts, wishes to. (Scroll down to the bottom of the page)
As noted in my prior post, there are other/standard things to try, if the scanners don't help resolve this type of issue. You haven't posted again. I'm hoping it's because Dell helped resolve the issue once and for all.
Best of luck..