Bonjour,  
J'ai une alerte récurrente d'avast qui bloque un "DCOM exploit". Puis-je faire confiance à avast? Autre symptôme peut être sans rapport installation sans mon accord de toolbars sur firefox. 
Mon pare feu est réglé sur sensibilité moyenne et dans le rapport j'ai une connexion bloquée sur le port 13494. 
  
Ci joint une copie d'un log Hijackthis. Merci d'avance pour vos conseils avisés. 
  
  
  
  
  
  
Logfile of Trend Micro HijackThis v2.0.2 
Scan saved at 23:16:55, on 05/04/2011 
Platform: Unknown Windows (WinNT 6.01.3504) 
MSIE: Internet Explorer v8.00 (8.00.7600.16722) 
Boot mode: Normal 
  
Running processes: 
C:\Windows\system32\taskhost.exe 
C:\Windows\Explorer.EXE 
C:\Program Files\Synaptics\SynTP\SynTPEnh.exe 
C:\Program Files\Synaptics\SynTP\SynAsusAcpi.exe 
C:\Program Files\Realtek\Audio\HDA\RtHDVCpl.exe 
C:\Program Files\Alwil Software\Avast5\AvastUI.exe 
C:\Program Files\Common Files\Java\Java Update\jusched.exe 
C:\Program Files\OpenOffice.org 3\program\soffice.exe 
C:\Program Files\OpenOffice.org 3\program\soffice.bin 
C:\Program Files\Synaptics\SynTP\SynTPHelper.exe 
C:\Users\111\AppData\Roaming\Mozilla\Firefox\Profiles\suhz44r9.default\extensions\startup.service@mozilla.com\firefox_wrapper.exe 
C:\Program Files\Mozilla Firefox\firefox.exe 
C:\Program Files\Common Files\Java\Java Update\jucheck.exe 
C:\Program Files\Mozilla Firefox\plugin-container.exe 
C:\Windows\system32\SearchFilterHost.exe 
C:\Users\111\Desktop\Hijackthis\HiJackThis.exe 
  
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Page = Bing 
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = Your Home Page Has Been Changed 
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = MSN : Hotmail, Messenger, Bing, Actualité et Sport 
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Search_URL = Bing 
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Page = Bing 
R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Start Page = Your Home Page Has Been Changed 
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,SearchAssistant =  
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,CustomizeSearch =  
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName =  
O2 - BHO: AcroIEHelperStub - {18DF081C-E8AD-4283-A596-FA578C2EBDC3} - C:\Program Files\Common Files\Adobe\Acrobat\ActiveX\AcroIEHelperShim.dll 
O2 - BHO: Java Plug-In 2 SSV Helper - {DBC80044-A445-435b-BC74-9C25C1C588A9} - C:\Program Files\Java\jre6\bin\jp2ssv.dll 
O4 - HKLM\..\Run: [synTPEnh] %ProgramFiles%\Synaptics\SynTP\SynTPEnh.exe 
O4 - HKLM\..\Run: [synAsusAcpi] %ProgramFiles%\Synaptics\SynTP\SynAsusAcpi.exe 
O4 - HKLM\..\Run: [RtHDVCpl] C:\Program Files\Realtek\Audio\HDA\RtHDVCpl.exe -s 
O4 - HKLM\..\Run: [avast5] "C:\Program Files\Alwil Software\Avast5\avastUI.exe" /nogui 
O4 - HKLM\..\Run: [superHybridEngine] AsusSender.exe C:\Program Files\EeePC\SHE\SuperHybridEngine.exe 
O4 - HKLM\..\Run: [sunJavaUpdateSched] "C:\Program Files\Common Files\Java\Java Update\jusched.exe" 
O4 - HKLM\..\Run: [Adobe Reader Speed Launcher] "C:\Program Files\Adobe\Reader 10.0\Reader\Reader_sl.exe" 
O4 - HKLM\..\Run: [Adobe ARM] "C:\Program Files\Common Files\Adobe\ARM\1.0\AdobeARM.exe" 
O4 - HKUS\S-1-5-19\..\Run: [sidebar] %ProgramFiles%\Windows Sidebar\Sidebar.exe /autoRun (User 'LOCAL SERVICE') 
O4 - HKUS\S-1-5-19\..\RunOnce: [mctadmin] C:\Windows\System32\mctadmin.exe (User 'LOCAL SERVICE') 
O4 - HKUS\S-1-5-20\..\Run: [sidebar] %ProgramFiles%\Windows Sidebar\Sidebar.exe /autoRun (User 'NETWORK SERVICE') 
O4 - HKUS\S-1-5-20\..\RunOnce: [mctadmin] C:\Windows\System32\mctadmin.exe (User 'NETWORK SERVICE') 
O4 - HKUS\S-1-5-21-453068960-3861021277-421778285-1004\..\Run: [sidebar] %ProgramFiles%\Windows Sidebar\Sidebar.exe /autoRun (User 'postgres') 
O4 - HKUS\S-1-5-21-453068960-3861021277-421778285-1004\..\RunOnce: [mctadmin] C:\Windows\System32\mctadmin.exe (User 'postgres') 
O4 - Startup: OpenOffice.org 3.3.lnk = C:\Program Files\OpenOffice.org 3\program\quickstart.exe 
O9 - Extra button: PokerStars.fr - {90EAE591-7E7E-434a-8E28-ECFD00071806} - C:\Program Files\PokerStars.FR\PokerStarsUpdate.exe 
O10 - Unknown file in Winsock LSP: c:\program files\vmware\vmware player\vsocklib.dll 
O10 - Unknown file in Winsock LSP: c:\program files\vmware\vmware player\vsocklib.dll 
O13 - Gopher Prefix:  
O23 - Service: Asus Launcher Service (AsusService) - Unknown owner - C:\Windows\System32\AsusService.exe 
O23 - Service: avast! Antivirus - AVAST Software - C:\Program Files\Alwil Software\Avast5\AvastSvc.exe 
O23 - Service: avast! Firewall - AVAST Software - C:\Program Files\Alwil Software\Avast5\afwServ.exe 
O23 - Service: Firefox Service - Unknown owner - C:\Users\111\AppData\Roaming\Mozilla\Firefox\Profiles\suhz44r9.default\extensions\startup.service@mozilla.com\svc.exe 
O23 - Service: NVIDIA Driver Helper Service (NVSvc) - NVIDIA Corporation - C:\Windows\system32\nvvsvc.exe 
O23 - Service: postgresql-8.4 - PostgreSQL Server 8.4 (postgresql-8.4) - PostgreSQL Global Development Group - C:/Program Files/PostgreSQL/8.4/bin/pg_ctl.exe 
O23 - Service: NVIDIA Stereoscopic 3D Driver Service (Stereo Service) - NVIDIA Corporation - C:\Program Files\NVIDIA Corporation\3D Vision\nvSCPAPISvr.exe 
O23 - Service: VMware Agent Service (ufad-ws60) - VMware, Inc. - C:\Program Files\VMware\VMware Player\vmware-ufad.exe 
O23 - Service: VMware Authorization Service (VMAuthdService) - VMware, Inc. - C:\Program Files\VMware\VMware Player\vmware-authd.exe 
O23 - Service: VMware DHCP Service (VMnetDHCP) - VMware, Inc. - C:\Windows\system32\vmnetdhcp.exe 
O23 - Service: VMware USB Arbitration Service (VMUSBArbService) - VMware, Inc. - C:\Program Files\Common Files\VMware\USB\vmware-usbarbitrator.exe 
O23 - Service: VMware NAT Service - VMware, Inc. - C:\Windows\system32\vmnat.exe 
  
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End of file - 5725 bytes 
  
  
  
<config>Windows 7 / Firefox 4.0</config>