is my system compromised (bios flash, UEFI unauthorized)

[Kriticidaltrend]

Just briefly I have reason to believe a malicious attack occur on my local system taking the last.

I have noticed several log files attempting to and eventually changing critical properties system wide, it a nut shell I believe someone is trying(nearly complete) to grant superuser right to every thing on my local drive. including flashing the bios into boot memory, no located externally on a network i have no access too

I have spent a lot of time trying to figure out what if any services files and general system measures I need to secure my root folder on my local hard disk and have prevented something similar previously and recovered system structure for a period. But it continue to have insecure elements and processes

I am little bit of a novice at system security on win 8 and hope for some skill advice and guidance to back up a clean boot able recovery disk and protect bios, restore access to several important person data folders remotely store on an unrecognised external network

HELP ME Please

ps even just the correct interpretation of what im seeing

 

[XweAponX]

I would have to see those longs in question. You have Windows 8 Pro? If you go to "Local Users and Groups" are there any extra users there that you never made yourself? And are there any "Superusers" in thew Groups list? By default, there are no "Superusers".

If you have an Nvidia Video Card, there will be a user named "UpdatusUser" - This is to allow them to update your software, the user profile gets installed by their "GeForce Experience" program.