Figli di trojan:winlogon.exe e csrss.exe

[ematocrito]

Ciao a tutti,
ho notato che sul mio PC sono presenti 2 processi winlogon.exe e csrss.exe Sembrano essere tutti e 2 trojan ma Ad-Aware non me li rileva.
Non riesco a eliminarli in nessun modo,ne in modalità provvisoria ne dal prompt,perché vengono sempre caricati da windows e siccome il task manager non me li fa terminare non posso cancellarli brutalmente.
Qualcuno sa come fare?

Nota:
Prima di postare ho fatto una ricerca sul sito e ho notato che in molti Log fatti con hijackthis e' presente winlogon.exe.

[juninho85]

posta un log nel thread ufficiale di HJT...comunque al 90% i file non sono infetti

[ematocrito]

Logfile of HijackThis v1.99.1
Scan saved at 22.14.51, on 03/05/2006
Platform: Windows XP SP2 (WinNT 5.01.2600)
MSIE: Internet Explorer v6.00 SP2 (6.00.2900.2180)

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\Explorer.EXE
C:\Program Files\Softwin\BitDefender9\bdoesrv.exe
C:\program files\softwin\bitdefender9\bdnagent.exe
C:\program files\softwin\bitdefender9\bdswitch.exe
C:\Program Files\Eset\nod32kui.exe
C:\WINDOWS\Mixer.exe
C:\applications\DAEMON Tools\daemon.exe
C:\Program Files\Java\jre1.5.0_06\bin\jusched.exe
C:\Program Files\Common Files\Real\Update_OB\realsched.exe
C:\applications\Google\Gmail Notifier\gnotify.exe
C:\Program Files\Common Files\Ahead\lib\NMBgMonitor.exe
C:\Program Files\MSN Messenger\MsnMsgr.Exe
C:\Program Files\Messenger\msmsgs.exe
C:\applications\A Note\A Note.exe
C:\applications\Dexpot\Dexpot.exe
C:\Program Files\Eset\nod32krn.exe
C:\applications\VMware\VMware Workstation\vmware-authd.exe
C:\WINDOWS\system32\vmnat.exe
C:\Program Files\Common Files\Softwin\BitDefender Communicator\xcommsvr.exe
C:\WINDOWS\system32\vmnetdhcp.exe
C:\Program Files\Common Files\Softwin\BitDefender Update Service\livesrv.exe
C:\Program Files\Common Files\Softwin\BitDefender Scan Server\bdss.exe
C:\Program Files\Softwin\BitDefender9\vsserv.exe
c:\program files\softwin\bitdefender9\bdmcon.exe
C:\WINDOWS\system32\taskmgr.exe
C:\PROGRA~1\MOZILL~1\FIREFOX.EXE
C:\Documents and Settings\Emanuele\Desktop\HijackThis.exe

O2 - BHO: AcroIEHlprObj Class - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Program Files\Adobe\Acrobat 7.0\ActiveX\AcroIEHelper.dll
O2 - BHO: Idea2 SidebarBrowserMonitor Class - {45AD732C-2CE2-4666-B366-B2214AD57A49} - C:\applications\Desktop Sidebar\sbhelp.dll
O2 - BHO: SSVHelper Class - {761497BB-D6F0-462C-B6EB-D4DAF1D92D43} - C:\Program Files\Java\jre1.5.0_06\bin\ssv.dll
O4 - HKLM\..\Run: [BDMCon] "C:\Program Files\Softwin\BitDefender9\bdmcon.exe"
O4 - HKLM\..\Run: [BDOESRV] "C:\Program Files\Softwin\BitDefender9\bdoesrv.exe"
O4 - HKLM\..\Run: [BDNewsAgent] "c:\program files\softwin\bitdefender9\bdnagent.exe"
O4 - HKLM\..\Run: [BDSwitchAgent] "c:\program files\softwin\bitdefender9\bdswitch.exe"
O4 - HKLM\..\Run: [nod32kui] "C:\Program Files\Eset\nod32kui.exe" /WAITSERVICE
O4 - HKLM\..\Run: [C-Media Mixer] Mixer.exe /startup
O4 - HKLM\..\Run: [DAEMON Tools] "C:\applications\DAEMON Tools\daemon.exe" -lang 1033
O4 - HKLM\..\Run: [NeroFilterCheck] C:\WINDOWS\system32\NeroCheck.exe
O4 - HKLM\..\Run: [SunJavaUpdateSched] C:\Program Files\Java\jre1.5.0_06\bin\jusched.exe
O4 - HKLM\..\Run: [TkBellExe] "C:\Program Files\Common Files\Real\Update_OB\realsched.exe" -osboot
O4 - HKLM\..\Run: [{0228e555-4f9c-4e35-a3ec-b109a192b4c2}] C:\applications\Google\Gmail Notifier\gnotify.exe
O4 - HKLM\..\Run: [OSSelectorReinstall] C:\Program Files\Common Files\Acronis\Acronis Disk Director\oss_reinstall.exe
O4 - HKCU\..\Run: [BgMonitor_{79662E04-7C6C-4d9f-84C7-88D8A56B10AA}] "C:\Program Files\Common Files\Ahead\lib\NMBgMonitor.exe"
O4 - HKCU\..\Run: [MsnMsgr] "C:\Program Files\MSN Messenger\MsnMsgr.Exe" /background
O4 - HKCU\..\Run: [MSMSGS] "C:\Program Files\Messenger\msmsgs.exe" /background
O4 - Startup: A Note.lnk = C:\applications\A Note\A Note.exe
O4 - Startup: Adobe Gamma.lnk = C:\Program Files\Common Files\Adobe\Calibration\Adobe Gamma Loader.exe
O4 - Startup: Dexpot 1.3.lnk = C:\applications\Dexpot\Dexpot.exe
O4 - Global Startup: Avvio veloce di Adobe Reader.lnk = C:\Program Files\Adobe\Acrobat 7.0\Reader\reader_sl.exe
O8 - Extra context menu item: Subscribe in Desktop Sidebar - res://C:\applications\Desktop Sidebar\sbhelp.dll/menuhandler.html
O9 - Extra button: (no name) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\Java\jre1.5.0_06\bin\ssv.dll
O9 - Extra 'Tools' menuitem: Sun Java Console - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\Java\jre1.5.0_06\bin\ssv.dll
O9 - Extra button: Subscribe in Desktop Sidebar - {09FE188B-6E85-479e-9411-51FB2220DF80} - C:\applications\Desktop Sidebar\sbhelp.dll
O9 - Extra 'Tools' menuitem: Subscribe in Desktop Sidebar - {09FE188B-6E85-479e-9411-51FB2220DF80} - C:\applications\Desktop Sidebar\sbhelp.dll
O9 - Extra button: Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\Program Files\Messenger\msmsgs.exe
O9 - Extra 'Tools' menuitem: Windows Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\Program Files\Messenger\msmsgs.exe
O16 - DPF: {11260943-421B-11D0-8EAC-0000C07D88CF} (iPIX ActiveX Control) - http://www.ipix.com/download/ipixx.cab
O16 - DPF: {6414512B-B978-451D-A0D8-FCFDF33E833C} (WUWebControl Class) - http://update.microsoft.com/windowsupdate/v6/V5Controls/en/x86/client/wuweb_site.cab?1142980668824
O16 - DPF: {6E32070A-766D-4EE6-879C-DC1FA91D2FC3} (MUWebControl Class) - http://update.microsoft.com/microsoftupdate/v6/V5Controls/en/x86/client/muweb_site.cab?1144495698890
O16 - DPF: {B38870E4-7ECB-40DA-8C6A-595F0A5519FF} (MsnMessengerSetupDownloadControl Class) - http://messenger.msn.com/download/MsnMessengerSetupDownloader.cab
O16 - DPF: {FE0BD779-44EE-4A4B-AA2E-743C63F2E5E6} (IWinAmpActiveX Class) - http://pdl.stream.aol.com/downloads/aol/unagi/ampx_en_dl.cab
O18 - Protocol: msnim - {828030A1-22C1-4009-854F-8E305202313F} - "C:\PROGRA~1\MSNMES~1\msgrapp.dll" (file missing)
O23 - Service: Adobe LM Service - Adobe Systems - C:\Program Files\Common Files\Adobe Systems Shared\Service\Adobelmsvc.exe
O23 - Service: BitDefender Scan Server (bdss) - Unknown owner - C:\Program Files\Common Files\Softwin\BitDefender Scan Server\bdss.exe" /service (file missing)
O23 - Service: BitDefender Desktop Update Service (LIVESRV) - Unknown owner - C:\Program Files\Common Files\Softwin\BitDefender Update Service\livesrv.exe" /service (file missing)
O23 - Service: NOD32 Kernel Service (NOD32krn) - Unknown owner - C:\Program Files\Eset\nod32krn.exe
O23 - Service: Apache Tomcat (Tomcat5) - Unknown owner - C:\Program Files\Apache Software Foundation\Tomcat 5.5\bin\tomcat5.exe" //RS//Tomcat5 (file missing)
O23 - Service: VMware Authorization Service (VMAuthdService) - VMware, Inc. - C:\applications\VMware\VMware Workstation\vmware-authd.exe
O23 - Service: VMware DHCP Service (VMnetDHCP) - VMware, Inc. - C:\WINDOWS\system32\vmnetdhcp.exe
O23 - Service: VMware NAT Service - VMware, Inc. - C:\WINDOWS\system32\vmnat.exe
O23 - Service: BitDefender Virus Shield (VSSERV) - Unknown owner - C:\Program Files\Softwin\BitDefender9\vsserv.exe" /service (file missing)
O23 - Service: BitDefender Communicator (XCOMM) - Unknown owner - C:\Program Files\Common Files\Softwin\BitDefender Communicator\xcommsvr.exe" /service (file missing)

Un'altra cosa strana e' che il processo csrss.exe nonostante sia presente nel task manager non mi pare venga visualizzato nel LOG.

Io l'ho trovato in questo sito che il file sono dei trojan:

http://www.liutilities.com/products/wintaskspro/processlibrary/winlogon/

[Stev-O]

fixa questo se non lo conosci e scansionalo su www.virustotal.com ed eventualmente eliminalo:
O4 - Startup: A Note.lnk = C:\applications\A Note\A Note.exe
effettivamente quello che dici è un trojan
eliminalo e se non si cancella prova con killbox