Slow computer, high CPU, got and cleaned trojan, but...

Computer works great this morning, thanks to you, and thanks for the explanation also.

I think I'll have my girlfriend's computer checked next, same cpu behavior... Probably the same virus. Possible here or shall I start a new thread?

Hello. Tonight, my computer fell again in very high CPU. Something blocks my avast from starting at boot-up. I suspect something came back. ONly things I did since this morning was to isntall WOT and PSIsetup and follow PSIsetup recommndations about updating java and intel pro card. I did create a restore point this morning after all was fine. Even after recovering that point, avast does want to start.

Have I done something wrong ?

Procexp log:

Process PID CPU Private Bytes Working Set Description Company Name Command Line
System Idle Process 0 98.44 0 K 16 K
System 4 0 K 240 K
Interrupts n/a 0.78 0 K 0 K Hardware Interrupts and DPCs
smss.exe 900 172 K 940 K Gestionnaire de session Windows NT Microsoft Corporation \SystemRoot\System32\smss.exe
csrss.exe 984 1 816 K 8 136 K Client Server Runtime Process Microsoft Corporation C:\WINDOWS\system32\csrss.exe ObjectDirectory=\Windows SharedSection=1024,3072,512 Windows=On SubSystemType=Windows ServerDll=basesrv,1 ServerDll=winsrv:UserServerDllInitialization,3 ServerDll=winsrv:ConServerDllInitialization,2 ProfileControl=Off MaxRequestThreads=16
winlogon.exe 1028 7 124 K 1 280 K Application d'ouverture de session Windows NT Microsoft Corporation winlogon.exe
services.exe 1072 2 240 K 9 480 K Applications Services et Contrôleur Microsoft Corporation C:\WINDOWS\system32\services.exe
a2service.exe 1244 37 684 K 1 184 K Emsisoft Anti-Malware Service Emsi Software GmbH "C:\Program Files\Emsisoft Anti-Malware\a2service.exe"
CLPSLS.exe 1304 976 K 8 044 K COMODO livePCsupport Service COMODO "C:\Program Files\COMODO\COMODO GeekBuddy\CLPSLS.exe"
svchost.exe 1424 3 500 K 30 912 K Generic Host Process for Win32 Services Microsoft Corporation C:\WINDOWS\system32\svchost.exe -k DcomLaunch
unsecapp.exe 696 2 636 K 27 896 K WMI Microsoft Corporation C:\WINDOWS\system32\wbem\unsecapp.exe -Embedding
wmiprvse.exe 2380 2 728 K 31 824 K WMI Microsoft Corporation C:\WINDOWS\system32\wbem\wmiprvse.exe
Dot1XCfg.exe 732 4 496 K 35 224 K Intel 802.1x Server Intel Corporation C:\PROGRA~1\Intel\Wireless\Bin\Dot1XCfg.exe -Embedding
svchost.exe 1492 2 464 K 28 260 K Generic Host Process for Win32 Services Microsoft Corporation C:\WINDOWS\system32\svchost.exe -k rpcss
cmdagent.exe 1532 37 440 K 4 684 K COMODO Internet Security COMODO "C:\Program Files\COMODO\COMODO Internet Security\cmdagent.exe"
svchost.exe 1560 25 320 K 78 052 K Generic Host Process for Win32 Services Microsoft Corporation C:\WINDOWS\system32\svchost.exe -k netsvcs
EvtEng.exe 1640 3 756 K 33 388 K Intel(R) PROSet/Wireless Event Log Intel Corporation "C:\Program Files\Intel\Wireless\Bin\EvtEng.exe"
S24EvMon.exe 1732 3 316 K 28 564 K Wireless Management Service Intel Corporation "C:\Program Files\Intel\Wireless\Bin\S24EvMon.exe"
svchost.exe 1908 1 824 K 23 048 K Generic Host Process for Win32 Services Microsoft Corporation C:\WINDOWS\system32\svchost.exe -k NetworkService
svchost.exe 168 5 080 K 29 976 K Generic Host Process for Win32 Services Microsoft Corporation C:\WINDOWS\system32\svchost.exe -k LocalService
AAWService.exe 284 67 340 K 89 128 K Ad-Aware Service Application Lavasoft Limited "C:\Program Files\Lavasoft\Ad-Aware\AAWService.exe"
AAWTray.exe 2648 3 400 K 22 764 K Ad-Aware Tray Application Lavasoft Limited "C:\Program Files\Lavasoft\Ad-Aware\AAWTray.exe"
spoolsv.exe 452 3 672 K 29 920 K Spooler SubSystem App Microsoft Corporation C:\WINDOWS\system32\spoolsv.exe
svchost.exe 908 1 848 K 29 368 K Generic Host Process for Win32 Services Microsoft Corporation C:\WINDOWS\system32\svchost.exe -k LocalService
SASCore.exe 1396 1 116 K 18 240 K Core Service SUPERAntiSpyware.com "C:\Program Files\SUPERAntiSpyware\SASCORE.EXE"
CFSvcs.exe 1448 2 072 K 27 144 K Service of ConfigFree. TOSHIBA CORPORATION "C:\Program Files\TOSHIBA\ConfigFree\CFSvcs.exe"
DVDRAMSV.exe 1620 988 K 6 900 K DVD-RAM Utility Helper Service Matsushita Electric Industrial Co., Ltd. C:\WINDOWS\system32\DVDRAMSV.exe
nvsvc32.exe 1696 3 836 K 19 880 K NVIDIA Driver Helper Service, Version 83.20 NVIDIA Corporation C:\WINDOWS\system32\nvsvc32.exe
RegSrvc.exe 1768 1 360 K 24 504 K Intel(R) PROSet/Wireless Registry Service Intel Corporation "C:\Program Files\Intel\Wireless\Bin\RegSrvc.exe"
svchost.exe 1844 2 908 K 29 232 K Generic Host Process for Win32 Services Microsoft Corporation C:\WINDOWS\system32\svchost.exe -k imgsvc
alg.exe 2364 1 628 K 26 808 K Application Layer Gateway Service Microsoft Corporation C:\WINDOWS\System32\alg.exe
svchost.exe 3988 2 048 K 26 140 K Generic Host Process for Win32 Services Microsoft Corporation C:\WINDOWS\System32\svchost.exe -k HTTPFilter
lsass.exe 1084 4 436 K 30 228 K LSA Shell (Export Version) Microsoft Corporation C:\WINDOWS\system32\lsass.exe
explorer.exe 200 0.78 23 508 K 19 400 K Explorateur Windows Microsoft Corporation C:\WINDOWS\Explorer.EXE
DLACTRLW.EXE 2940 1 720 K 25 752 K Drive Letter Access Component Sonic Solutions "C:\WINDOWS\System32\DLA\DLACTRLW.EXE"
SmoothView.exe 2948 1 080 K 18 240 K SmoothView TOSHIBA Corporation "C:\Program Files\TOSHIBA\Utilitaire de zoom TOSHIBA\SmoothView.exe"
Hotkey.exe 2956 5 600 K 38 524 K TOSHIBA Hotkey Filter Application TOSHIBA Inc. "C:\Program Files\Toshiba\Windows Utilities\Hotkey.exe" /lang FR
SynTPEnh.exe 2964 2 328 K 23 468 K Synaptics TouchPad Enhancements Synaptics, Inc. "C:\Program Files\Synaptics\SynTP\SynTPEnh.exe"
Toshiba.exe 3332 1 576 K 21 120 K Toshiba Custom PlugIn Application Synaptics, Inc. "C:\Program Files\Synaptics\SynTP\Toshiba" /RegPlugIn
ZCfgSvc.exe 2992 2 900 K 34 140 K ZeroCfgSvc MFC Application Intel Corporation "C:\Program Files\Intel\Wireless\bin\ZCfgSvc.exe"
iFrmewrk.exe 3000 5 700 K 42 304 K Intel Framework MFC Application Intel Corporation "C:\Program Files\Intel\Wireless\Bin\ifrmewrk.exe" /tf Intel PROSet/Wireless
cfp.exe 3008 17 304 K 6 288 K COMODO Internet Security COMODO "C:\Program Files\COMODO\COMODO Internet Security\cfp.exe" -h
AvastUI.exe 3016 4 808 K 39 176 K avast! Antivirus AVAST Software "C:\Program Files\AVAST Software\Avast\avastUI.exe" /nogui
TOSCDSPD.exe 3032 1 132 K 18 508 K CD/DVD Drive Acoustic Silencer TOSHIBA "C:\Program Files\TOSHIBA\TOSCDSPD\toscdspd.exe"
SUPERANTISPYWARE.EXE 3056 176 600 K 820 K SUPERAntiSpyware Application SUPERAntiSpyware.com "C:\Program Files\SUPERAntiSpyware\SUPERAntiSpyware.exe"
ctfmon.exe 3108 1 408 K 22 448 K CTF Loader Microsoft Corporation "C:\WINDOWS\system32\ctfmon.exe"
RAMASST.exe 3436 1 216 K 18 828 K CD Burning of Windows XP disabling tool for DVD MULTI Drive Matsushita Electric Industrial Co., Ltd. "C:\WINDOWS\system32\RAMASST.exe"
iexplore.exe 2360 13 500 K 4 668 K Internet Explorer Microsoft Corporation "C:\Program Files\internet explorer\iexplore.exe"
iexplore.exe 1516 59 196 K 66 728 K Internet Explorer Microsoft Corporation "C:\Program Files\internet explorer\iexplore.exe" SCODEF:2360 CREDAT:79873
iexplore.exe 368 46 124 K 56 072 K Internet Explorer Microsoft Corporation "C:\Program Files\internet explorer\iexplore.exe" SCODEF:2360 CREDAT:145409
procexp.exe 1520 11 860 K 17 784 K Sysinternals Process Explorer Sysinternals - www.sysinternals.com "C:\Documents and Settings\Toshiba\Bureau\ProcessExplorer\procexp.exe"
soffice.exe 3832 12 480 K 28 364 K OpenOffice.org 3.3 OpenOffice.org "C:\Program Files\OpenOffice.org 3\program\soffice.exe" -quickstart
soffice.bin 1656 43 872 K 107 676 K OpenOffice.org 3.3 OpenOffice.org "C:\Program Files\OpenOffice.org 3\program\soffice.exe" "-quickstart" "-env:OOO_CWD=2C:\\Program Files\\OpenOffice.org 3\\program"

Oops, just seen you asked to attach the file, here it is.

CPU was 100% at boot-up and many minutes after, better now indeed, but avast out of order. SHould I go ahead uninstalling and installing it again?

I will have to reboot after unistalling Avast, I'll check CPU and make a log if high,

Reinstalled Avast, seems ok.

CPU very unstable upon startup, the culprit is "Hardware interrupts and DPC", which oscillates between 0% and 50%... 12%... 43%... and so on. Stabilizes after a long long period.

I have Java J2SE Runtime ENvironment 5.0 Update 4, shall I installed new java version after uninstalling that one?

DMA is what I want instead of PIO?

Primary says:

DMA if available
PIO mode (can't seem to toggle to DMA though)

Seconday says:

DMA if available
Ultra DMA Mode 2

(Ok for Java, I'll take care of it)

Ultra DMA 5 now,

Everthing is much faster! You are a genius !!!!

I will try and perform the recommended hard-disk checkup in next days, because indeed, there must be a reason why my computer did shift back to PIO mode in the first place...

Java sucessfully installed.

Two last things (before i buy you a beer!):

1- "PSI", when I installed it last time, it seems to remain resident in memory (i.e. always active). Is there a way to install it so it can be executed "on demand"?

2- Ad-aware, is it a good software to keep around, seems a bit heavy on memory and same problem: it is always resident in memory (i.e. in system tray). Should I keep it or remove it (I have Avast, COmodo, and regularily run MBAM and Emisoft antimalware)?

(Edited sorry for posting in wrong thread)