CPU-intensive (but AV-clean) executables causing sluggishness

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longtalker

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Dear Tech Support Guy community,

My PC (info below) has been sluggish for a while, and having lately kept a close eye on the most CPU-demanding processes under Task Manager (under zero-load conditions, i.e. empty taskbar), I have a list of three suspect executables.

  • ZenworksWindowsService.exe - part of the Novell network software that is embedded with this PC's OS
  • id_tray.exe - runs iDrive, a cloud backup service that I've set up to run daily, typically from 3pm till about 3:20pm
  • WmiPrvSE.exe - apparently a legitimate Windows service
The AV that is installed on all my company's PCs (of which this is one), SOphos, has, for some reason, stopped updating correctly for a while, as you can see int he log below. Since I never found that particular AV helpful anyway, I've scanned the above 3 exe's at virustotal.com, which I'd have thought is also more up-to-date. All three of them seem clean, even after requesting a re-analysis.

How else can I check whether these exe's have somehow become infected/hijacked? I am not really up-to-speed with how the latest malware infects PCs nowadays, so it might not be as simple as it used to, i.e. identifying&cleaning specific exe's. I know HijackThis is a very good tool for detecting malware that hijacks a PC's resources, however afaik it is for *browser* hijackings in particular, whereas right now my suspicions lie with the above-mentioned exe's.

I should add that I am using the free version of "Windows 8 Firewall Control" (even though I run Win7), which unfortunately gives the user no control over exe's located in system folders (which is the case for WmiPrvSE.exe).

Thanks in advance for any help!
__________
Tech Support Guy System Info Utility version 1.0.0.2
OS Version: Microsoft Windows 7 Enterprise, Service Pack 1, 64 bit
Processor: Intel(R) Core(TM)2 Duo CPU P9700 @ 2.80GHz, Intel64 Family 6 Model 23 Stepping 10
Processor Count: 2
RAM: 4051 Mb
Graphics Card: Mobile Intel(R) 4 Series Express Chipset Family, 1801 Mb
Hard Drives: C: Total - 61232 MB, Free - 4065 MB; D: Total - 177075 MB, Free - 80995 MB;
Motherboard: Dell Inc., 0DW634
Antivirus: Sophos Anti-Virus, Not Updated
 

valis

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78,171
Howdy. From the 'everyone must read prior to posting' sticky.......;)

IMPORTANT NOTE REGARDING CORPORATE/COMPANY OWNED COMPUTERS

Please do not request assistance for corporate/company owned computers. Many changes/deletions are made during the clean up process, some of which may involve uninstalling programs, deleting folders/files, changing settings and/or removing policies etc. As we have no way of knowing for sure if these are actually needed for company operations, malware issues in these cases should be handled by your own IT Departments in order to avoid any undesirable results.
as a result, closing.

thanks,

v
 
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