The "malware" hit is likely a wannabe AV hackjob signature flagging on the tiff image or similar, run into this at work a lot. (the 'antivirus' industry blows, nearly worthless on new malware or real threats, you can dial it up to paranoid then it starts flagging operating system files)
LGA775 dimensions etc are very close to 115x (which includes upcoming haswell) so the mounting can probably be adapted to it without too much trouble.
It would be nicer if the front plate didn't have such prominent logos, but overall that case is very high quality for the price.
When I stopped caring about super quiet: E5 1680v2 @ 4.5Ghz, 980ti, i750 SSD - JS9500 & Dell P2715Q for dual 4k@60 because reasons
SAN shares over 56Gb infiniband, microcenter + fleabay = severe risks to my wallet