This isn't saying you have a rootkit, but something that it considers suspect. Most probably a hidden driver of npptnt2.sys and splitter.sys, since these are considered suspect you should follow the advice to Ignore, as painful as this is in it being detected after every boot.
See this topic
http://forum.avast.com/index.php?topic=78461.0, which also mentions npptnt2.sys (ignore the bit about the behavior shield, the poster got that wrong) and you should report both of these as possible false positives as mentioned in Reply #6 of this topic.
Sending either of them to virustotal, won't achieve anything as the anti-rootkit scanning doesn't use the conventional avast signatures but a heuristic method, which can't be replicated on VT.