this file got flaged in browser (Palemoon) but I checked VirusTotal and its clean.
Log
AdwCleaner v5.025 - Logfile created 20/12/2015 at 18:31:13
# Updated 13/12/2015 by Xplode
# Database : 2015-12-13.2 [Server]
# Operating system : Windows 7 Professional Service Pack 1 (x64)
# Username : Ed - ED-PC
# Running from : C:\zips and exe\utility\AdwCleaner\adwcleaner_5.025.exe
# Option : Scan
# Support : http://toolslib.net/forum
***** [ Services ] *****
***** [ Folders ] *****
***** [ Files ] *****
File Found : C:\Program Files (x86)\Pale Moon\browser\searchplugins\yahoo.xml
***** [ DLL ] *****
***** [ Shortcuts ] *****
***** [ Scheduled tasks ] *****
***** [ Registry ] *****
***** [ Web browsers ] *****
########## EOF - C:\AdwCleaner\AdwCleaner[S3].txt - [673 bytes] ##########