Please, I need help with PUM.Homepage

Hi. It keeps showing up in the RogueKiller scan. It shows up in gray. When I scanned with RogueKiller back on the 9th it found a tr. (which I assume meant Trojan) and it was in red but it removed it hasn't shown up in scans with Rogue Killer since. When I scanned with Roguekiller a little while ago it removed the 2 PUM.Homepage infections and then set my homepage to msn.com, where before I had it set to bing.com. I set my homepage back to bing,com as it is the homepage I always have used,...

Please, I need help with PUM.Homepage