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is my system compromised (bios flash, UEFI unauthorized)

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:confused:

ps even just the correct interpretation of what im seeing

My Computer

System One

  • OS
    win 8 and 7


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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.

My Computer

System One

  • OS
    Windows 8 Pro with Media Center/Windows 7
    Computer type
    System Manufacturer/Model Number
    Asus M2N-MX SE Plus § DualCore AMD Athlon 64 X2, 2300 MHz (11.5 x 200) 4400+ § Corsair Value Select
    AMD 4400+/4200+
    Asus M2N-MX SE Plus/Asus A8M2N-LA (NodusM)
    2 GB/3GB
    Graphics Card(s)
    GeForce 8400 GS/GeForce 210
    Sound Card
    nVIDIA GT218 - High Definition Audio Controller
    Monitor(s) Displays
    Hitachi 40" LCD HDTV
    Screen Resolution
    "1842 x 1036"
    Hard Drives
    WDC WD50 00AAKS-007AA SCSI Disk Device
    ST1000DL 002-9TT153 SCSI Disk Device
    WDC WD3200AAJB-00J3A0 ATA Device
    WDC WD32 WD-WCAPZ2942630 USB Device
    WD My Book 1140 USB Device
    Works 550w
    MSI "M-Box"
    Water Cooled
    Dell Keyboard
    Microsoft Intellimouse
    Internet Speed
    Cable Medium Speed
    Chrome/IE 10
    Eset NOD32 6.x/Win Defend
    Other Info
    Recently lost my Windows 8 on my main PC, had to go back to Windows 7.