Worm, trojan, virus?

Bonjour,

Toujours aux prises avec un truc pas net qui s'est incrusté sur mon ordinateur, j'aurais besoin d'un coup de main pour repartir à l'attaque... Ci-dessous un rapport Hijack This.



-Les symptômes: coupures de connexion internet, apparition de fenêtres de type "Veuillez envoyer ce rapport à MicroSoft" indiquant qu'HP Wireless MarModule et HPConfigModule ont du être fermés. (jusqu'à aujourd'hui, j'ignorais leur présence sur mon ordi...)

En prime, mon antivirus AntiVir s'est retrouvé au tapis.

Le programme ne peut plus être démarré, le message suivant apparait:
"The application module
c:\\program files\avira\antivir personaledition classic\avgnt.exe
cannot be found or has been modified or destroyed.
The AVGNT.EXE cannot be started.
Please check your installation."

Je ne parviens pas à supprimer le programme correctement à partir du panneau de configuration. Le message apparaissant étant alors:
" The CRC sum of
C:\ Program Files\Avira\AntiVir PersonalEdition Classic\SETUP.EXE
has been changes. This could due be to a virus!
Do you want to shut down Setup?
OK"

Même message si j'essaie de réinstaller le programme. Que dois-je faire pour le désintaller correctement afin de réinstaller un antivirus sans créer de conflit d'intérêt?

- Les opérations déjà effecturées, avec le secours d'aideurs du forum (tous les rapports sont ci-dessous à la suite du HiJackThis):

MalwareByte's Anti-Malware (by RubbeR DuckY)
ComboFix (par sUBs)
Vundofix.exe (par Atribune)

ainsi que l'installation de Ashampoo en pare-feu qui a permis de bloquer l'accès au net de:

mdm.exe
syssmon.exe
irdvxc.exe

- Les rapports:

- HiJackThis (effectué à l'instant, le 13.05.08)

Logfile of Trend Micro HijackThis v2.0.2
Scan saved at 21:48:43, on 13/05/2008
Platform: Windows XP SP1 (WinNT 5.01.2600)
MSIE: Internet Explorer v6.00 SP1 (6.00.2800.1106)
Boot mode: Normal

Running processes:
C:\WINDOWS\System32\smss.exe
C:\WINDOWS\system32\winlogon.exe
C:\WINDOWS\system32\services.exe
C:\WINDOWS\system32\lsass.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\system32\spoolsv.exe
C:\WINDOWS\System32\Ati2evxx.exe
C:\WINDOWS\System32\drivers\CDAC11BA.EXE
C:\Program Files\Fichiers communs\Microsoft Shared\VS7Debug\mdm.exe
C:\WINDOWS\System32\irdvxc.exe
C:\WINDOWS\system32\syssmon.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\System32\MsPMSPSv.exe
C:\WINDOWS\Explorer.EXE
C:\Program Files\ATI Technologies\ATI Control Panel\atiptaxx.exe
C:\Program Files\HPQ\One-Touch\OneTouch.EXE
C:\Program Files\Synaptics\SynTP\SynTPLpr.exe
C:\Program Files\Synaptics\SynTP\SynTPEnh.exe
C:\Program Files\Hewlett-Packard\HP Software Update\HPWuSchd.exe
C:\WINDOWS\System32\hphmon05.exe
C:\Program Files\Roxio\Easy CD Creator 6\DragToDisc\DrgToDsc.exe
C:\WINDOWS\System32\carpserv.exe
C:\Program Files\Adobe\Acrobat 7.0\Distillr\Acrotray.exe
C:\Program Files\QuickTime\qttask.exe
C:\WINDOWS\System32\mdm.exe
C:\Program Files\Ashampoo\Ashampoo FireWall\FireWall.exe
C:\WINDOWS\System32\ctfmon.exe
C:\Program Files\Messenger\msmsgs.exe
C:\Program Files\Adobe\Acrobat 7.0\Acrobat\acrobat_sl.exe
C:\Program Files\Trend Micro\HijackThis\HijackThis.exe

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://www.dbsarticles.com
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = https://www.msn.com/fr-fr/?ocid=iehp
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Search_URL = https://www.bing.com/?toHttps=1&redig=5FC791212101479BAFBE1A679848B1AF
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Page = https://www.bing.com/?toHttps=1&redig=5FC791212101479BAFBE1A679848B1AF
R1 - HKCU\Software\Microsoft\Internet Connection Wizard,ShellNext = https://www.gorillaz.com/
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Liens
O2 - BHO: C:\WINDOWS\System32\jfiehayd.dll - {c5af49a2-94f3-42bd-f434-2604812c897d} - C:\WINDOWS\System32\jfiehayd.dll
O3 - Toolbar: &Radio - {8E718888-423F-11D2-876E-00A0C9082467} - C:\WINDOWS\System32\msdxm.ocx
O3 - Toolbar: Adobe PDF - {47833539-D0C5-4125-9FA8-0819E2EAAC93} - C:\Program Files\Adobe\Acrobat 7.0\Acrobat\AcroIEFavClient.dll
O4 - HKLM\..\Run: [ATIModeChange] Ati2mdxx.exe
O4 - HKLM\..\Run: [ATIPTA] C:\Program Files\ATI Technologies\ATI Control Panel\atiptaxx.exe
O4 - HKLM\..\Run: [Display Settings] C:\Program Files\HPQ\Notebook Utilities\hptasks.exe /s
O4 - HKLM\..\Run: [QT4HPOT] C:\Program Files\HPQ\One-Touch\OneTouch.EXE
O4 - HKLM\..\Run: [Cpqset] C:\Program Files\HPQ\Default Settings\cpqset.exe
O4 - HKLM\..\Run: [SynTPLpr] C:\Program Files\Synaptics\SynTP\SynTPLpr.exe
O4 - HKLM\..\Run: [SynTPEnh] C:\Program Files\Synaptics\SynTP\SynTPEnh.exe
O4 - HKLM\..\Run: [HPHUPD05] c:\Program Files\Hewlett-Packard\{45B6180B-DCAB-4093-8EE8-6164457517F0}\hphupd05.exe
O4 - HKLM\..\Run: [HP Software Update] "c:\Program Files\Hewlett-Packard\HP Software Update\HPWuSchd.exe"
O4 - HKLM\..\Run: [HPHmon05] C:\WINDOWS\System32\hphmon05.exe
O4 - HKLM\..\Run: [RoxioEngineUtility] "C:\Program Files\Fichiers communs\Roxio Shared\System\EngUtil.exe"
O4 - HKLM\..\Run: [RoxioDragToDisc] "C:\Program Files\Roxio\Easy CD Creator 6\DragToDisc\DrgToDsc.exe"
O4 - HKLM\..\Run: [CARPService] carpserv.exe
O4 - HKLM\..\Run: [RealTray] C:\Program Files\Real\RealPlayer\RealPlay.exe SYSTEMBOOTHIDEPLAYER
O4 - HKLM\..\Run: [Acrobat Assistant 7.0] "C:\Program Files\Adobe\Acrobat 7.0\Distillr\Acrotray.exe"
O4 - HKLM\..\Run: [QuickTime Task] "C:\Program Files\QuickTime\qttask.exe" -atboottime
O4 - HKLM\..\Run: [Windows has Layer] fixweb.exe
O4 - HKLM\..\Run: [Windows Networking Monitoring] C:\WINDOWS\System32\mdm.exe
O4 - HKLM\..\Run: [avgnt] "C:\Program Files\Avira\AntiVir PersonalEdition Classic\avgnt.exe" /min
O4 - HKLM\..\Run: [Ashampoo FireWall] "C:\Program Files\Ashampoo\Ashampoo FireWall\FireWall.exe" -TRAY
O4 - HKLM\..\RunServices: [Windows has Layer] fixweb.exe
O4 - HKCU\..\Run: [CTFMON.EXE] C:\WINDOWS\System32\ctfmon.exe
O4 - HKCU\..\Run: [MSMSGS] "C:\Program Files\Messenger\msmsgs.exe" /background
O4 - HKCU\..\Run: [Windows has Layer] fixweb.exe
O4 - HKCU\..\Run: [Windows Networking Monitoring] C:\WINDOWS\System32\mdm.exe
O4 - HKUS\S-1-5-18\..\Run: [CTFMON.EXE] C:\WINDOWS\System32\CTFMON.EXE (User 'SYSTEM')
O4 - HKUS\S-1-5-18\..\Run: [Windows has Layer] fixweb.exe (User 'SYSTEM')
O4 - HKUS\S-1-5-18\..\Run: [Microsoft Oftice] C:\WINDOWS\System32\msmsgs.exe (User 'SYSTEM')
O4 - HKUS\S-1-5-18\..\Run: [Microsoft Windows Driver] C:\WINDOWS\rundll32.exe (User 'SYSTEM')
O4 - HKUS\S-1-5-18\..\Run: [Windows Networking Monitoring] C:\WINDOWS\System32\mdm.exe (User 'SYSTEM')
O4 - HKUS\S-1-5-18\..\RunOnce: [Windows has Layer] fixweb.exe (User 'SYSTEM')
O4 - HKUS\.DEFAULT\..\Run: [CTFMON.EXE] C:\WINDOWS\System32\CTFMON.EXE (User 'Default user')
O4 - HKUS\.DEFAULT\..\RunOnce: [Windows has Layer] fixweb.exe (User 'Default user')
O4 - Global Startup: Adobe Acrobat Speed Launcher.lnk = ?
O4 - Global Startup: Adobe Gamma Loader.exe.lnk = C:\Program Files\Fichiers communs\Adobe\Calibration\Adobe Gamma Loader.exe
O4 - Global Startup: Adobe Gamma Loader.lnk = C:\Program Files\Fichiers communs\Adobe\Calibration\Adobe Gamma Loader.exe
O4 - Global Startup: Microsoft Office.lnk = C:\Program Files\Microsoft Office\Office10\OSA.EXE
O8 - Extra context menu item: &Recherche AOL Toolbar - res://C:\Program Files\AOL Toolbar\toolbar.dll/SEARCH.HTML
O8 - Extra context menu item: Convert link target to Adobe PDF - res://C:\Program Files\Adobe\Acrobat 7.0\Acrobat\AcroIEFavClient.dll/AcroIECapture.html
O8 - Extra context menu item: Convert link target to existing PDF - res://C:\Program Files\Adobe\Acrobat 7.0\Acrobat\AcroIEFavClient.dll/AcroIEAppend.html
O8 - Extra context menu item: Convert selected links to Adobe PDF - res://C:\Program Files\Adobe\Acrobat 7.0\Acrobat\AcroIEFavClient.dll/AcroIECaptureSelLinks.html
O8 - Extra context menu item: Convert selected links to existing PDF - res://C:\Program Files\Adobe\Acrobat 7.0\Acrobat\AcroIEFavClient.dll/AcroIEAppendSelLinks.html
O8 - Extra context menu item: Convert selection to Adobe PDF - res://C:\Program Files\Adobe\Acrobat 7.0\Acrobat\AcroIEFavClient.dll/AcroIECapture.html
O8 - Extra context menu item: Convert selection to existing PDF - res://C:\Program Files\Adobe\Acrobat 7.0\Acrobat\AcroIEFavClient.dll/AcroIEAppend.html
O8 - Extra context menu item: Convert to Adobe PDF - res://C:\Program Files\Adobe\Acrobat 7.0\Acrobat\AcroIEFavClient.dll/AcroIECapture.html
O8 - Extra context menu item: Convert to existing PDF - res://C:\Program Files\Adobe\Acrobat 7.0\Acrobat\AcroIEFavClient.dll/AcroIEAppend.html
O8 - Extra context menu item: E&xport to Microsoft Excel - res://C:\PROGRA~1\MICROS~3\Office10\EXCEL.EXE/3000
O9 - Extra button: (no name) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\Java\j2re1.4.2\bin\npjpi142.dll
O9 - Extra 'Tools' menuitem: Console Java (Sun) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\Java\j2re1.4.2\bin\npjpi142.dll
O9 - Extra button: Related - {c95fe080-8f5d-11d2-a20b-00aa003c157a} - C:\WINDOWS\web\related.htm
O9 - Extra 'Tools' menuitem: Show &Related Links - {c95fe080-8f5d-11d2-a20b-00aa003c157a} - C:\WINDOWS\web\related.htm
O9 - Extra button: (no name) - {CD67F990-D8E9-11d2-98FE-00C0F0318AFE} - (no file)
O14 - IERESET.INF: START_PAGE_URL=https://www.hpe.com/h41271/404D.aspx?cc=us&ll=en&url=http://domainredirects.ext.hpe.com/qfr8l.hpwis.com/
O16 - DPF: {62475759-9E84-458E-A1AB-5D2C442ADFDE} - http://a1540.g.akamai.net/7/1540/52/20040105/qtinstall.info.apple.com/mickey/fr/win/QuickTimeInstaller.exe
O16 - DPF: {74D05D43-3236-11D4-BDCD-00C04F9A3B61} (HouseCall Control) - https://www.trendmicro.com/en_us/forHome/products/housecall.html
O16 - DPF: {BB21F850-63F4-4EC9-BF9D-565BD30C9AE9} (a-squared Scanner) - http://ax.emsisoft.com/asquared.cab
O18 - Protocol: skype4com - {FFC8B962-9B40-4DFF-9458-1830C7DD7F5D} - C:\PROGRA~1\FICHIE~1\Skype\SKYPE4~1.DLL
O20 - Winlogon Notify: opnnoomm - opnnoomM.dll (file missing)
O20 - Winlogon Notify: rqrkewqh - rqRKEWQh.dll (file missing)
O22 - SharedTaskScheduler: jhsf8d984jief8dsfus98jkefn - {C5AF49A2-94F3-42BD-F434-2604812C897D} - C:\WINDOWS\System32\jfiehayd.dll
O23 - Service: Adobe LM Service - Adobe Systems - C:\Program Files\Fichiers communs\Adobe Systems Shared\Service\Adobelmsvc.exe
O23 - Service: Avira AntiVir Personal – Free Antivirus Scheduler (AntiVirScheduler) - Avira GmbH - C:\Program Files\Avira\AntiVir PersonalEdition Classic\sched.exe
O23 - Service: Avira AntiVir Personal – Free Antivirus Guard (AntiVirService) - Avira GmbH - C:\Program Files\Avira\AntiVir PersonalEdition Classic\avguard.exe
O23 - Service: Ati HotKey Poller - Unknown owner - C:\WINDOWS\System32\Ati2evxx.exe
O23 - Service: C-DillaCdaC11BA - Macrovision - C:\WINDOWS\System32\drivers\CDAC11BA.EXE
O23 - Service: Windows has Layer (ffor.mylifez.net) - Unknown owner - C:\WINDOWS\System32\fixweb.exe (file missing)
O23 - Service: HP Configuration Interface Service (HPConfig) - Hewlett-Packard - C:\WINDOWS\system32\HPConfig.exe
O23 - Service: HPWirelessMgr - Hewlett-Packard Co. - C:\Program Files\HPQ\Notebook Utilities\HPWirelessMgr.exe
O23 - Service: Network helper Service (MSDisk) - Unknown owner - C:\WINDOWS\System32\irdvxc.exe