ReimageRepair malware

Hi All

1st post here, Norton 360 has detected ReimageRepair  malware and I have found 'ReimageUndo' on my PC running Win XP, 360 has now been going 24 hours trying to delete ReimageRepair.

I have no idea when this malware was downloaded.

Is Norton 360 capable of removing/fixing this issue? This seems to be an undue time to carry out this task.

How can I trust a internet site that claims to be able to assist in this regard? ( you cannot )

Can anyone suggest a fix?

Col49