SPTD.sys

[viking33]

Looking for opinions on this.
Just ran GMER rootkit tester and it turned up two instances of sptd.sys in the REG, that it claims to be malware or a rootkit.
The file sptd.sys does appear in the Windows\system32\drivers folder.
I have Googled this filename and there seems to be two opposing camps that directly contradict each other. One says this is a necessary windows file, used for CD emulation. The other says it's not necessary and a possible rootkit. Take your choice as to which opinion is correct. I'm not having any apparent problems but it would be good to know if it's a "goodie or a baddie?" A false positive?
It's just amazing how many opinions are out there on this thing.

[PaulB]

I can't offer an opinion, Bob, but I can tell you that I do not have that file on my system (Win 7 HP SP1 x64).

[HansV]

A name that comes up frequently when I search for sptd.sys is Daemon Tools. Do you have software from them? If so, the file is probably safe - disk emulation software by its nature has aspects that resemble a rootkit.

[viking33]

A name that comes up frequently when I search for sptd.sys is Daemon Tools. Do you have software from them? If so, the file is probably safe - disk emulation software by its nature has aspects that resemble a rootkit.

No, nothing by Daemon Tools. ( that I know of ) I wonder if perhaps some other program might be using it by agreement or not?
I think I may just rename that file temporarily and see if anything starts to complain.