Pc affetto da malware kxvo.exe (kxva)

[brainsforce]

Salve,
ho letto la guida del forum prima di postare il log di hijiackthis.

Il problema è che probabilmente ho preso un virus da una chiavetta USB , tale malware dovrebbe essere causato dal file kxvo.exe, in effetti all'avvio del sistema compariva un messaggio d'errore del tipo:

kxvo.exe errore di applicazione
L'istruzione a "0x10011edf" ha fatto riferimento alla memoria a "0x000000ff". L memoria non poteva essere read

Ho rimosso con regcleaner kxvo.exe dalla lista dello startup e ora non mi appare più questo messaggio.

Tuttavia recentemente mi sono accorto che non vedo più la cartella System32 sotto Windows e se spunto l'opzione di mostrare i file nascosti non me li fa vedere e se ritorno nelle impostazione della cartella la spunta è sempre su NON mostrare file nascosti e di sistema. Credo che sia sempre colpa del virus perchè anche altri miei amici mi hanni segnalato sto problema dopo aver usato la chiavetta USB incriminata.

Con HijiackThis ho gia rimosso la seguente voce:

O4 - HKCU\..\Run: [kxva] C:\WINDOWS\system32\kxvo.exe

Nel prossimo post vi scrivo il log di HJT (altrimenti supero la lunghezza consentita per i post)

[brainsforce]

Qui il log di HijiackThis:

Logfile of Trend Micro HijackThis v2.0.2
Scan saved at 18.50.28, on 08/05/2008
Platform: Windows XP SP2 (WinNT 5.01.2600)
MSIE: Internet Explorer v7.00 (7.00.6000.16640)
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\Ati2evxx.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\system32\svchost.exe
C:\Programmi\Intel\Wireless\Bin\S24EvMon.exe
C:\Programmi\Alwil Software\Avast4\aswUpdSv.exe
C:\Programmi\Alwil Software\Avast4\ashServ.exe
C:\WINDOWS\system32\spoolsv.exe
C:\WINDOWS\Explorer.EXE
C:\Programmi\File comuni\Apple\Mobile Device Support\bin\AppleMobileDeviceService.exe
C:\Programmi\Bonjour\mDNSResponder.exe
C:\Programmi\Intel\Wireless\Bin\EvtEng.exe
C:\Progra~1\ATI Technologies\ATI Control Panel\atiptaxx.exe
C:\WINDOWS\Samsung\LaserSMMgr\ssmmgr.exe
C:\Programmi\ASUS\Power4 Gear\BatteryLife.exe
C:\Programmi\Synaptics\SynTP\SynTPEnh.exe
C:\Programmi\Synaptics\SynTP\SynTPLpr.exe
C:\WINDOWS\ATK0100\Hcontrol.exe
C:\PROGRA~1\ALWILS~1\Avast4\ashDisp.exe
C:\Programmi\Java\jre1.6.0_05\bin\jusched.exe
C:\MATLAB6p5\webserver\bin\win32\matlabserver.exe
C:\Programmi\Intel\Wireless\bin\ZCfgSvc.exe
C:\Programmi\Intel\Wireless\Bin\ifrmewrk.exe
C:\oracle\product\10.2.0\db_2\bin\nmesrvc.exe
C:\Programmi\Notebook Hardware Control\nhc.exe
C:\Programmi\iTunes\iTunesHelper.exe
C:\PROGRAMMI\VEXPLITE\MONLITE.EXE
C:\Programmi\Nokia\Nokia PC Suite 6\PcSync2.exe
C:\WINDOWS\system32\ctfmon.exe
C:\WINDOWS\ATK0100\ATKOSD.exe
C:\Programmi\Google\GoogleToolbarNotifier\GoogleTo olbarNotifier.exe
c:\oracle\product\10.2.0\db_2\bin\ORACLE.EXE
C:\PROGRAMMI\VEXPLITE\VIRITEXP.EXE
C:\PROGRAMMI\VEXPLITE\VIRITEXP.EXE
C:\WINDOWS\system32\cmd.exe
C:\oracle\product\10.2.0\db_2\perl\5.8.3\bin\MSWin 32-x86-multi-thread\perl.exe
C:\oracle\product\10.2.0\db_2\jdk\bin\java.exe
C:\Programmi\Intel\Wireless\Bin\RegSrvc.exe
C:\WINDOWS\System32\svchost.exe
C:\PROGRAMMI\VEXPLITE\viritsvc.exe
C:\oracle\product\10.2.0\db_2\bin\emagent.exe
C:\Programmi\Alwil Software\Avast4\ashMaiSv.exe
C:\Programmi\Alwil Software\Avast4\ashWebSv.exe
C:\Programmi\File comuni\PCSuite\Services\ServiceLayer.exe
C:\Programmi\iPod\bin\iPodService.exe
C:\Programmi\Intel\Wireless\Bin\Dot1XCfg.exe
C:\Programmi\Alwil Software\Avast4\ashSimpl.exe
C:\Programmi\Mozilla Firefox\firefox.exe
C:\WINDOWS\system32\wuauclt.exe
C:\Programmi\Trend Micro\HijackThis\HijackThis.exe

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://www.google.it/
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = http://go.microsoft.com/fwlink/?LinkId=69157
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Search_URL = http://go.microsoft.com/fwlink/?LinkId=54896
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Page = http://go.microsoft.com/fwlink/?LinkId=54896
R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Start Page = http://go.microsoft.com/fwlink/?LinkId=69157
R1 - HKCU\Software\Microsoft\Windows\CurrentVersion\Int ernet Settings,ProxyServer = 10.0.0.1:3128
R1 - HKCU\Software\Microsoft\Windows\CurrentVersion\Int ernet Settings,ProxyOverride = 127.0.0.1;192.168.0.13;*.local;<local>
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Collegamenti

O2 - BHO: Supporto di collegamento per Adobe PDF Reader - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Programmi\File comuni\Adobe\Acrobat\ActiveX\AcroIEHelper.dll
O2 - BHO: SSVHelper Class - {761497BB-D6F0-462C-B6EB-D4DAF1D92D43} - C:\Programmi\Java\jre1.6.0_05\bin\ssv.dll
O2 - BHO: (no name) - {7E853D72-626A-48EC-A868-BA8D5E23E045} - (no file)
O2 - BHO: Google Toolbar Helper - {AA58ED58-01DD-4d91-8333-CF10577473F7} - c:\programmi\google\googletoolbar1.dll
O2 - BHO: Google Toolbar Notifier BHO - {AF69DE43-7D58-4638-B6FA-CE66B5AD205D} - C:\Programmi\Google\GoogleToolbarNotifier\2.0.301. 7164\swg.dll
O3 - Toolbar: &Google - {2318C2B1-4965-11d4-9B18-009027A5CD4F} - c:\programmi\google\googletoolbar1.dll
O4 - HKLM\..\Run: [ATIModeChange] Ati2mdxx.exe
O4 - HKLM\..\Run: [ATIPTA] C:\Progra~1\ATI Technologies\ATI Control Panel\atiptaxx.exe
O4 - HKLM\..\Run: [Samsung LBP SM] "C:\WINDOWS\Samsung\LaserSMMgr\ssmmgr.exe" /autorun
O4 - HKLM\..\Run: [Power_Gear] C:\Programmi\ASUS\Power4 Gear\BatteryLife.exe 1
O4 - HKLM\..\Run: [SynTPEnh] C:\Programmi\Synaptics\SynTP\SynTPEnh.exe
O4 - HKLM\..\Run: [SynTPLpr] C:\Programmi\Synaptics\SynTP\SynTPLpr.exe
O4 - HKLM\..\Run: [Hcontrol] C:\WINDOWS\ATK0100\Hcontrol.exe
O4 - HKLM\..\Run: [avast!] C:\PROGRA~1\ALWILS~1\Avast4\ashDisp.exe
O4 - HKLM\..\Run: [PCSuiteTrayApplication] C:\PROGRA~1\Nokia\NOKIAP~1\LAUNCH~1.EXE -startup
O4 - HKLM\..\Run: [SunJavaUpdateSched] "C:\Programmi\Java\jre1.6.0_05\bin\jusched.exe "
O4 - HKLM\..\Run: [IntelZeroConfig] "C:\Programmi\Intel\Wireless\bin\ZCfgSvc.exe"
O4 - HKLM\..\Run: [IntelWireless] "C:\Programmi\Intel\Wireless\Bin\ifrmewrk.exe" /tf Intel PROSet/Wireless
O4 - HKLM\..\Run: [{0228e555-4f9c-4e35-a3ec-b109a192b4c2}] C:\Programmi\Google\Gmail Notifier\gnotify.exe
O4 - HKLM\..\Run: [NotebookHardwareControl] "C:\Programmi\Notebook Hardware Control\nhc.exe" -quiet
O4 - HKLM\..\Run: [iTunesHelper] "C:\Programmi\iTunes\iTunesHelper.exe"
O4 - HKLM\..\Run: [QuickTime Task] "C:\Programmi\QuickTime\QTTask.exe" -atboottime
O4 - HKLM\..\Run: [VIRIT LITE MONITOR] C:\PROGRAMMI\VEXPLITE\MONLITE.EXE
O4 - HKCU\..\Run: [ATnotes.exe] C:\Programmi\ATnotes\ATnotes.exe
O4 - HKCU\..\Run: [PcSync] C:\Programmi\Nokia\Nokia PC Suite 6\PcSync2.exe /NoDialog
O4 - HKCU\..\Run: [ctfmon.exe] C:\WINDOWS\system32\ctfmon.exe
O4 - HKCU\..\Run: [swg] C:\Programmi\Google\GoogleToolbarNotifier\GoogleTo olbarNotifier.exe
O4 - HKUS\S-1-5-19\..\Run: [CTFMON.EXE] C:\WINDOWS\System32\CTFMON.EXE (User 'SERVIZIO LOCALE')
O4 - HKUS\S-1-5-20\..\Run: [CTFMON.EXE] C:\WINDOWS\System32\CTFMON.EXE (User 'SERVIZIO DI RETE')
O4 - HKUS\S-1-5-18\..\Run: [CTFMON.EXE] C:\WINDOWS\System32\CTFMON.EXE (User 'SYSTEM')
O4 - HKUS\S-1-5-18\..\RunServices: [Microsoft HDCP for NT and Win9x] msdhcprs.exe (User 'SYSTEM')
O4 - HKUS\.DEFAULT\..\Run: [CTFMON.EXE] C:\WINDOWS\System32\CTFMON.EXE (User 'Default user')
O4 - HKUS\.DEFAULT\..\RunServices: [Microsoft HDCP for NT and Win9x] msdhcprs.exe (User 'Default user')
O8 - Extra context menu item: E&sporta in Microsoft Excel - res://C:\PROGRA~1\MICROS~4\OFFICE11\EXCEL.EXE/3000
O9 - Extra button: (no name) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Programmi\Java\jre1.6.0_05\bin\ssv.dll
O9 - Extra 'Tools' menuitem: Sun Java Console - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Programmi\Java\jre1.6.0_05\bin\ssv.dll
O9 - Extra button: Run WinHTTrack - {36ECAF82-3300-8F84-092E-AFF36D6C7040} - C:\Programmi\WinHTTrack\WinHTTrackIEBar.dll
O9 - Extra 'Tools' menuitem: Launch WinHTTrack - {36ECAF82-3300-8F84-092E-AFF36D6C7040} - C:\Programmi\WinHTTrack\WinHTTrackIEBar.dll
O9 - Extra button: Ricerche - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - C:\PROGRA~1\MICROS~4\OFFICE11\REFIEBAR.DLL
O9 - Extra button: (no name) - {e2e2dd38-d088-4134-82b7-f2ba38496583} - C:\WINDOWS\Network Diagnostic\xpnetdiag.exe
O9 - Extra 'Tools' menuitem: @xpsp3res.dll,-20001 - {e2e2dd38-d088-4134-82b7-f2ba38496583} - C:\WINDOWS\Network Diagnostic\xpnetdiag.exe
O9 - Extra button: Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\Programmi\Messenger\msmsgs.exe
O9 - Extra 'Tools' menuitem: Windows Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\Programmi\Messenger\msmsgs.exe
O14 - IERESET.INF: START_PAGE_URL=http://www.asus.com.tw
O16 - DPF: {14B87622-7E19-4EA8-93B3-97215F77A6BC} (MessengerStatsClient Class) - http://messenger.zone.msn.com/binary...t.cab31267.cab
O16 - DPF: {8E0D4DE5-3180-4024-A327-4DFAD1796A8D} (MessengerStatsClient Class) - http://messenger.zone.msn.com/binary...t.cab31267.cab
O16 - DPF: {B8BE5E93-A60C-4D26-A2DC-220313175592} (ZoneIntro Class) - http://messenger.zone.msn.com/binary...o.cab47946.cab
O18 - Protocol: skype4com - {FFC8B962-9B40-4DFF-9458-1830C7DD7F5D} - C:\PROGRA~1\FILECO~1\Skype\SKYPE4~1.DLL
O23 - Service: Adobe LM Service - Adobe Systems - C:\Programmi\File comuni\Adobe Systems Shared\Service\Adobelmsvc.exe
O23 - Service: Apple Mobile Device - Apple, Inc. - C:\Programmi\File comuni\Apple\Mobile Device Support\bin\AppleMobileDeviceService.exe
O23 - Service: avast! iAVS4 Control Service (aswUpdSv) - ALWIL Software - C:\Programmi\Alwil Software\Avast4\aswUpdSv.exe
O23 - Service: Ati HotKey Poller - Unknown owner - C:\WINDOWS\System32\Ati2evxx.exe
O23 - Service: avast! Antivirus - ALWIL Software - C:\Programmi\Alwil Software\Avast4\ashServ.exe
O23 - Service: avast! Mail Scanner - ALWIL Software - C:\Programmi\Alwil Software\Avast4\ashMaiSv.exe
O23 - Service: avast! Web Scanner - ALWIL Software - C:\Programmi\Alwil Software\Avast4\ashWebSv.exe
O23 - Service: Bonjour Service - Apple Inc. - C:\Programmi\Bonjour\mDNSResponder.exe
O23 - Service: Intel(R) PROSet/Wireless Event Log (EvtEng) - Intel Corporation - C:\Programmi\Intel\Wireless\Bin\EvtEng.exe
O23 - Service: Google Updater Service (gusvc) - Google - C:\Programmi\Google\Common\Google Updater\GoogleUpdaterService.exe
O23 - Service: InstallDriver Table Manager (IDriverT) - Macrovision Corporation - C:\Programmi\File comuni\InstallShield\Driver\11\Intel 32\IDriverT.exe
O23 - Service: Servizio iPod (iPod Service) - Apple Inc. - C:\Programmi\iPod\bin\iPodService.exe
O23 - Service: MATLAB Server (matlabserver) - Unknown owner - C:\MATLAB6p5\webserver\bin\win32\matlabserver.exe
O23 - Service: MySQL - Unknown owner - C:\Programmi\MySQL\MySQL.exe (file missing)
O23 - Service: OracleDBConsoleoracle - Unknown owner - C:\oracle\product\10.2.0\db_1\bin\nmesrvc.exe (file missing)
O23 - Service: OracleDBConsolesoccorso - Oracle Corporation - C:\oracle\product\10.2.0\db_2\bin\nmesrvc.exe
O23 - Service: OracleOraDb10g_home2iSQL*Plus - Oracle - C:\oracle\product\10.2.0\db_2\bin\isqlplussvc.exe
O23 - Service: OracleOraDb10g_home2TNSListener - Unknown owner - C:\oracle\product\10.2.0\db_2\BIN\TNSLSNR.exe
O23 - Service: OracleServiceSOCCORSO - Oracle Corporation - c:\oracle\product\10.2.0\db_2\bin\ORACLE.EXE
O23 - Service: Intel(R) PROSet/Wireless Registry Service (RegSrvc) - Intel Corporation - C:\Programmi\Intel\Wireless\Bin\RegSrvc.exe
O23 - Service: Intel(R) PROSet/Wireless Service (S24EventMonitor) - Intel Corporation - C:\Programmi\Intel\Wireless\Bin\S24EvMon.exe
O23 - Service: ServiceLayer - Nokia. - C:\Programmi\File comuni\PCSuite\Services\ServiceLayer.exe
O23 - Service: Virit eXplorer Lite (viritsvclite) - TG Soft Sas www.tgsoft.it - C:\PROGRAMMI\VEXPLITE\viritsvc.exe
--
End of file - 15943 bytes

[Deifobe]

1) se hai ancora dubbi sulla chiave usb, inseriscila nel pc e fai una scansione on line con Bitdefender. Salva e carica il rapporto di scansione su Freefilehosting e posta il link ottenuto (ti consiglierei di farla comunque)

2) apri il registro (start => esegui => digita regedit e dai l'ok).
Clicca su "Risorse del computer", poi su "file" => esporta => salva la copia del registro in c:\

Poi segui questo percorso:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\Curr entVersion\Explorer\Advanced\Folder\Hidden\SHOWALL

Nella finestra a destra individua:
CheckedValue => deve essere Dati 0x1

DefaultValue => deve essere Dati 0x2

Se i dati sono diversi, modificale: clicca su CheckedValue 2 volte e modificalo in 1. Poi clicca su DefaultValue e modificalo in 2.

Poi vai in:
HKEY_CURRENT_USER\Software\Microsoft\Windows\Curre ntVersion\Explorer\Advanced

"Hidden" => deve essere 01
"ShowSuperHidden" => deve essere 01

Riavvia il pc e controlla se riesci a visualizzare i files e le cartelle nascoste.

[brainsforce]

Allora: per la penna ho risolta da Ubuntu eliminando i file sospetti ed ora non infetta più nulla; pPer la visualizzazione dei file nascosti, ho fatto come mi hai suggerito e ora funziona.

Ti ringrazio veramente tanto.

Siete forti!

[Deifobe]

mi fa piacere.

Ciao