DLL mancante (?)

[ExA_Enrybaster]

Salve a tutti, ho da poco scaricato (inconsciamente) un programmino che richiedeva di disattivare l'antivirus momentaneamente. Dopo aver rimosso un piccolo Malware, succede una cosa strana all'avvio....
Windows mi dice "impossibile caricare il modulo dvssiscn.dll" che si trova nel percorso System32/Locals/Ufmedia
Il problema è che questa cartella chiamata Ufmedia in quel percorso non c'è e nemmeno quella dll strana! Ho fatto la ricerca su tutto il PC, anche tra le cartelle nascoste ma proprio non c'è.
Come faccio?

[Blue_screen_of_death]

Probabilmente hai rimosso in modo parziale il malware, quindi viene tentato il caricamento delle sue dll all'avvio.

Fai girare questo antimalware (basta la versione free) ed elimina tutti i malware che vengono rilevati: https://it.malwarebytes.com/
Poi scarica HijackThis (https://sourceforge.net/projects/hjt/), effettua una scansione e posta il log.

[ExA_Enrybaster]

Fai girare questo antimalware (basta la versione free) ed elimina tutti i malware che vengono rilevati: https://it.malwarebytes.com/
Poi scarica HijackThis (https://sourceforge.net/projects/hjt/), effettua una scansione e posta il log.

Ho già fatto diverse pulizie con Malwarebytes. Proverò HijackThis e posterò il log tra un paio di giorni

[ExA_Enrybaster]

log di Malwarebytes

[ExA_Enrybaster]

Logfile of Trend Micro HijackThis v2.0.5
Scan saved at 17:51:10, on 05/03/2017
Platform: Unknown Windows (WinNT 6.02.1008)
MSIE: Internet Explorer v11.0 (11.00.14393.0000)

FIREFOX: 47.0.1 (x86 it)
Boot mode: Normal

Running processes:
C:\Program Files (x86)\NVIDIA Corporation\NvContainer\nvcontainer.exe
D:\Anti-Malware\mbamtray.exe
C:\Program Files (x86)\NVIDIA Corporation\NVIDIA GeForce Experience\NVIDIA Share.exe
C:\Program Files (x86)\NVIDIA Corporation\NVIDIA GeForce Experience\NVIDIA Share.exe
C:\Program Files (x86)\NVIDIA Corporation\NvNode\NVIDIA Web Helper.exe
D:\Corsair\Corsair Utility Engine\CorsairHID.exe
C:\Program Files (x86)\Common Files\Java\Java Update\jusched.exe
C:\Program Files\Intel\Intel(R) Rapid Storage Technology\IAStorIcon.exe
C:\Users\Utente\Downloads\HijackThis.exe

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Page = http://go.microsoft.com/fwlink/?LinkId=54896
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://go.microsoft.com/fwlink/p/?LinkId=255141
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = http://go.microsoft.com/fwlink/p/?LinkId=255141
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/p/?LinkId=255141
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,SearchAssistant =
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,CustomizeSearch =
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Local Page = %11%\blank.htm
R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Local Page = C:\Windows\SysWOW64\blank.htm
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName =
O2 - BHO: Lync Click to Call BHO - {31D09BA0-12F5-4CCE-BE8A-2923E76605DA} - C:\Program Files\Microsoft Office\root\VFS\ProgramFilesX86\Microsoft Office\Office16\OCHelper.dll
O2 - BHO: Microsoft OneDrive for Business Browser Helper - {D0498E0A-45B7-42AE-A9AA-ABA463DBD3BF} - C:\Program Files\Microsoft Office\root\VFS\ProgramFilesX86\Microsoft Office\Office16\GROOVEEX.DLL
O4 - HKLM\..\Run: [Corsair Utility Engine] "D:\Corsair\Corsair Utility Engine\CorsairHID.exe" --autorun
O4 - HKLM\..\Run: [SunJavaUpdateSched] "C:\Program Files (x86)\Common Files\Java\Java Update\jusched.exe"
O4 - HKCU\..\Run: [OneDrive] "C:\Users\Utente\AppData\Local\Microsoft\OneDrive\OneDrive.exe" /background
O4 - HKCU\..\Run: [Steam] "C:\Program Files (x86)\Steam\steam.exe" -silent
O4 - HKCU\..\Run: [Spotify Web Helper] "C:\Users\Utente\AppData\Roaming\Spotify\SpotifyWebHelper.exe"
O4 - HKCU\..\Run: [GoogleDriveSync] "C:\Program Files (x86)\Google\Drive\googledrivesync.exe" /autostart
O4 - HKCU\..\Run: [GoogleChromeAutoLaunch_B33FBA02152CF98AA5B81315083E84AD] "C:\Program Files (x86)\Google\Chrome\Application\chrome.exe" --no-startup-window /prefetch:5
O4 - HKCU\..\Run: [YRLPack] C:\Windows\SysWOW64\regsvr32.exe C:\Users\Utente\AppData\Local\Ufmedia\dvssiscn.dll
O8 - Extra context menu item: E&xport to Microsoft Excel - res://C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE/3000
O8 - Extra context menu item: Se&nd to OneNote - res://C:\Program Files\Microsoft Office\Root\Office16\ONBttnIE.dll/105
O9 - Extra button: Send to OneNote - {2670000A-7350-4f3c-8081-5663EE0C6C49} - C:\Program Files\Microsoft Office\root\VFS\ProgramFilesX86\Microsoft Office\Office16\ONBttnIE.dll
O9 - Extra 'Tools' menuitem: Se&nd to OneNote - {2670000A-7350-4f3c-8081-5663EE0C6C49} - C:\Program Files\Microsoft Office\root\VFS\ProgramFilesX86\Microsoft Office\Office16\ONBttnIE.dll
O9 - Extra button: Lync Click to Call - {31D09BA0-12F5-4CCE-BE8A-2923E76605DA} - C:\Program Files\Microsoft Office\root\VFS\ProgramFilesX86\Microsoft Office\Office16\OCHelper.dll
O9 - Extra 'Tools' menuitem: Lync Click to Call - {31D09BA0-12F5-4CCE-BE8A-2923E76605DA} - C:\Program Files\Microsoft Office\root\VFS\ProgramFilesX86\Microsoft Office\Office16\OCHelper.dll
O9 - Extra button: OneNote Lin&ked Notes - {789FE86F-6FC4-46A1-9849-EDE0DB0C95CA} - C:\Program Files\Microsoft Office\root\VFS\ProgramFilesX86\Microsoft Office\Office16\ONBttnIELinkedNotes.dll
O9 - Extra 'Tools' menuitem: OneNote Lin&ked Notes - {789FE86F-6FC4-46A1-9849-EDE0DB0C95CA} - C:\Program Files\Microsoft Office\root\VFS\ProgramFilesX86\Microsoft Office\Office16\ONBttnIELinkedNotes.dll
O11 - Options group: [ACCELERATED_GRAPHICS] Accelerated graphics
O18 - Protocol: mso-minsb-roaming.16 - {83C25742-A9F7-49FB-9138-434302C88D07} - C:\Program Files\Microsoft Office\root\VFS\ProgramFilesX86\Microsoft Office\Office16\MSOSB.DLL
O18 - Protocol: mso-minsb.16 - {42089D2D-912D-4018-9087-2B87803E93FB} - C:\Program Files\Microsoft Office\root\VFS\ProgramFilesX86\Microsoft Office\Office16\MSOSB.DLL
O18 - Protocol: osf-roaming.16 - {42089D2D-912D-4018-9087-2B87803E93FB} - C:\Program Files\Microsoft Office\root\VFS\ProgramFilesX86\Microsoft Office\Office16\MSOSB.DLL
O18 - Protocol: osf.16 - {5504BE45-A83B-4808-900A-3A5C36E7F77A} - C:\Program Files\Microsoft Office\root\VFS\ProgramFilesX86\Microsoft Office\Office16\MSOSB.DLL
O18 - Protocol: tbauth - {14654CA6-5711-491D-B89A-58E571679951} - C:\Windows\SysWOW64\tbauth.dll
O18 - Protocol: windows.tbauth - {14654CA6-5711-491D-B89A-58E571679951} - C:\Windows\SysWOW64\tbauth.dll
O23 - Service: Adobe Acrobat Update Service (AdobeARMservice) - Adobe Systems Incorporated - C:\Program Files (x86)\Common Files\Adobe\ARM\1.0\armsvc.exe
O23 - Service: Adobe Flash Player Update Service (AdobeFlashPlayerUpdateSvc) - Adobe Systems Incorporated - C:\Windows\SysWOW64\Macromed\Flash\FlashPlayerUpdateService.exe
O23 - Service: @%SystemRoot%\system32\Alg.exe,-112 (ALG) - Unknown owner - C:\WINDOWS\System32\alg.exe (file missing)
O23 - Service: DbxSvc - Unknown owner - C:\WINDOWS\system32\DbxSvc.exe (file missing)
O23 - Service: @%SystemRoot%\system32\DiagSvcs\DiagnosticsHub.StandardCollector.ServiceRes.dll,-1000 (diagnosticshub.standardcollector.service) - Unknown owner - C:\WINDOWS\system32\DiagSvcs\DiagnosticsHub.StandardCollector.Service.exe (file missing)
O23 - Service: @%SystemRoot%\system32\efssvc.dll,-100 (EFS) - Unknown owner - C:\WINDOWS\System32\lsass.exe (file missing)
O23 - Service: ESET Service (ekrn) - ESET - C:\Program Files\ESET\ESET NOD32 Antivirus\ekrn.exe
O23 - Service: @%systemroot%\system32\fxsresm.dll,-118 (Fax) - Unknown owner - C:\WINDOWS\system32\fxssvc.exe (file missing)
O23 - Service: Servizio Google Update (gupdate) (gupdate) - Google Inc. - C:\Program Files (x86)\Google\Update\GoogleUpdate.exe
O23 - Service: Servizio Google Update (gupdatem) (gupdatem) - Google Inc. - C:\Program Files (x86)\Google\Update\GoogleUpdate.exe
O23 - Service: Intel(R) Rapid Storage Technology (IAStorDataMgrSvc) - Intel Corporation - C:\Program Files\Intel\Intel(R) Rapid Storage Technology\IAStorDataMgrSvc.exe
O23 - Service: InstallDriver Table Manager (IDriverT) - Macrovision Corporation - C:\Program Files (x86)\Common Files\InstallShield\Driver\1150\Intel 32\IDriverT.exe
O23 - Service: Intel(R) PROSet Monitoring Service - Unknown owner - C:\Windows\system32\IProsetMonitor.exe (file missing)
O23 - Service: @keyiso.dll,-100 (KeyIso) - Unknown owner - C:\WINDOWS\system32\lsass.exe (file missing)
O23 - Service: Kyubey - Unknown owner - C:\Users\Utente\AppData\Roaming\Kyubey\Kyubey.exe
O23 - Service: Malwarebytes Service (MBAMService) - Malwarebytes - D:\Anti-Malware\mbamservice.exe
O23 - Service: Mozilla Maintenance Service (MozillaMaintenance) - Mozilla Foundation - C:\Program Files (x86)\Mozilla Maintenance Service\maintenanceservice.exe
O23 - Service: @comres.dll,-2797 (MSDTC) - Unknown owner - C:\WINDOWS\System32\msdtc.exe (file missing)
O23 - Service: @%SystemRoot%\System32\netlogon.dll,-102 (Netlogon) - Unknown owner - C:\WINDOWS\system32\lsass.exe (file missing)
O23 - Service: NVIDIA LocalSystem Container (NvContainerLocalSystem) - NVIDIA Corporation - C:\Program Files\NVIDIA Corporation\NvContainer\nvcontainer.exe
O23 - Service: NVIDIA NetworkService Container (NvContainerNetworkService) - NVIDIA Corporation - C:\Program Files\NVIDIA Corporation\NvContainer\nvcontainer.exe
O23 - Service: NVIDIA Display Container LS (NVDisplay.ContainerLocalSystem) - NVIDIA Corporation - C:\Program Files\NVIDIA Corporation\Display.NvContainer\NVDisplay.Container.exe
O23 - Service: NVIDIA Wireless Controller Service - Unknown owner - C:\Program Files\NVIDIA Corporation\GeForce Experience Service\nvwirelesscontroller.exe (file missing)
O23 - Service: NVIDIA Telemetry Container (NvTelemetryContainer) - NVIDIA Corporation - C:\Program Files (x86)\NVIDIA Corporation\NvTelemetry\NvTelemetryContainer.exe
O23 - Service: Origin Client Service - Electronic Arts - C:\Program Files (x86)\Origin\OriginClientService.exe
O23 - Service: Origin Web Helper Service - Electronic Arts - C:\Program Files (x86)\Origin\OriginWebHelperService.exe
O23 - Service: Overwolf Updater Windows SCM (OverwolfUpdater) - Overwolf LTD - C:\Program Files (x86)\Overwolf\OverwolfUpdater.exe
O23 - Service: PnkBstrA - Unknown owner - C:\WINDOWS\system32\PnkBstrA.exe
O23 - Service: @%systemroot%\system32\Locator.exe,-2 (RpcLocator) - Unknown owner - C:\WINDOWS\system32\locator.exe (file missing)
O23 - Service: @%SystemRoot%\system32\samsrv.dll,-1 (SamSs) - Unknown owner - C:\WINDOWS\system32\lsass.exe (file missing)
O23 - Service: @%ProgramFiles%\Windows Defender Advanced Threat Protection\MsSense.exe,-1001 (Sense) - Unknown owner - C:\Program Files (x86)\Windows Defender Advanced Threat Protection\MsSense.exe (file missing)
O23 - Service: @%SystemRoot%\system32\SensorDataService.exe,-101 (SensorDataService) - Unknown owner - C:\WINDOWS\System32\SensorDataService.exe (file missing)
O23 - Service: @%SystemRoot%\system32\snmptrap.exe,-3 (SNMPTRAP) - Unknown owner - C:\WINDOWS\System32\snmptrap.exe (file missing)
O23 - Service: @%systemroot%\system32\spoolsv.exe,-1 (Spooler) - Unknown owner - C:\WINDOWS\System32\spoolsv.exe (file missing)
O23 - Service: @%SystemRoot%\system32\sppsvc.exe,-101 (sppsvc) - Unknown owner - C:\WINDOWS\system32\sppsvc.exe (file missing)
O23 - Service: Steam Client Service - Valve Corporation - C:\Program Files (x86)\Common Files\Steam\SteamService.exe
O23 - Service: @%SystemRoot%\system32\TieringEngineService.exe,-702 (TieringEngineService) - Unknown owner - C:\WINDOWS\system32\TieringEngineService.exe (file missing)
O23 - Service: @%SystemRoot%\system32\ui0detect.exe,-101 (UI0Detect) - Unknown owner - C:\WINDOWS\system32\UI0Detect.exe (file missing)
O23 - Service: @%SystemRoot%\system32\vaultsvc.dll,-1003 (VaultSvc) - Unknown owner - C:\WINDOWS\system32\lsass.exe (file missing)
O23 - Service: @%SystemRoot%\system32\vds.exe,-100 (vds) - Unknown owner - C:\WINDOWS\System32\vds.exe (file missing)
O23 - Service: @%systemroot%\system32\vssvc.exe,-102 (VSS) - Unknown owner - C:\WINDOWS\system32\vssvc.exe (file missing)
O23 - Service: Visual Studio Standard Collector Service (VSStandardCollectorService140) - Unknown owner - D:\MVS2015\Team Tools\DiagnosticsHub\Collector\StandardCollector.Service.exe (file missing)
O23 - Service: @%systemroot%\system32\wbengine.exe,-104 (wbengine) - Unknown owner - C:\WINDOWS\system32\wbengine.exe (file missing)
O23 - Service: @%ProgramFiles%\Windows Defender\MpAsDesc.dll,-320 (WdNisSvc) - Unknown owner - C:\Program Files (x86)\Windows Defender\NisSrv.exe (file missing)
O23 - Service: @%ProgramFiles%\Windows Defender\MpAsDesc.dll,-310 (WinDefend) - Unknown owner - C:\Program Files (x86)\Windows Defender\MsMpEng.exe (file missing)
O23 - Service: @%Systemroot%\system32\wbem\wmiapsrv.exe,-110 (wmiApSrv) - Unknown owner - C:\WINDOWS\system32\wbem\WmiApSrv.exe (file missing)
O23 - Service: @%PROGRAMFILES%\Windows Media Player\wmpnetwk.exe,-101 (WMPNetworkSvc) - Unknown owner - C:\Program Files (x86)\Windows Media Player\wmpnetwk.exe (file missing)

--
End of file - 12159 bytes

[Blue_screen_of_death]

Il log di MalwareBytes è pulito. Per quanto riguarda HijackThis, fixa queste voci:

O4 - HKCU\..\Run: [YRLPack] C:\Windows\SysWOW64\regsvr32.exe C:\Users\Utente\AppData\Local\Ufmedia\dvssiscn.dll
O23 - Service: Kyubey - Unknown owner - C:\Users\Utente\AppData\Roaming\Kyubey\Kyubey.exe

Riavvia il sistema e vedi se il problema è risolto.

[ExA_Enrybaster]

Originariamente inviato da Blue_screen_of_death

Il log di MalwareBytes è pulito. Per quanto riguarda HijackThis, fixa queste voci:

O4 - HKCU\..\Run: [YRLPack] C:\Windows\SysWOW64\regsvr32.exe C:\Users\Utente\AppData\Local\Ufmedia\dvssiscn.dll
O23 - Service: Kyubey - Unknown owner - C:\Users\Utente\AppData\Roaming\Kyubey\Kyubey.exe

Riavvia il sistema e vedi se il problema è risolto.

Sei un genio, grazie mille. Tutto risolto