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Nome del virus:TR/Dldr.Geral.vng
Scoperto:16/02/2011
Tipo:Trojan
Sottotipo:Downloader
In circolazione (ITW):Si
Numero delle infezioni segnalate:Medio-Basso
Potenziale di propagazione:Basso
Potenziale di danni:Medio-Basso
File statico:Si
Dimensione del file:39.839 Byte
Somma di controllo MD5:9b0c12025217508a1436683efa4faab5
Versione VDF:7.10.08.215
Versione IVDF:7.11.03.121 - mercoledì 16 febbraio 2011

 Generale Alias:
   •  Kaspersky: Trojan-Downloader.Win32.Geral.vng
   •  Sophos: Troj/Mdrop-DGX
   •  Bitdefender: Trojan.Agent.AQSO
   •  Panda: W32/Spamta.gen.worm
   •  GData: Trojan.Agent.AQSO


Piattaforme / Sistemi operativi:
   • Windows 2000
   • Windows XP
   • Windows 2003


Effetti secondari:
   • Duplica file “maligni”
   • Modifica del registro

 File Si copia alla seguente posizione:
   • %SYSDIR%\kav.exe



Cancella la copia di se stesso eseguita inizialmente.



Cancella i seguenti file:
   • %PROGRAM FILES%\ATI\amdk8.sys
   • %SYSDIR%\ccte1sto.dat
   • %PROGRAM FILES%\ATI\amdk8.dll
   • %TEMPDIR%\DogKiller.sys
   • %TEMPDIR%\360data.tmp
   • %PROGRAM FILES%\ATI\amdk8.inf



Vengono creati i seguenti file:

%WINDIR%\INF\oem14.inf Questo è un file di testo “non maligno” con il seguente contenuto:
   • %codice che avvia malware%

%PROGRAM FILES%\ATI\amdk8.inf Questo è un file di testo “non maligno” con il seguente contenuto:
   • %codice che avvia malware%

%PROGRAM FILES%\ATI\amdk8.sys Ulteriori analisi hanno accertato che questo file è anch'esso un malware. Riconosciuto come: Rkit/Agent.bhyh

%SYSDIR%\ccte1sto.dat Ulteriori analisi hanno accertato che questo file è anch'esso un malware. Riconosciuto come: TR/Spy.16896.75

%SYSDIR%\DRIVERS\amdk8.sys Ulteriori analisi hanno accertato che questo file è anch'esso un malware. Riconosciuto come: Rkit/Agent.bhyh

%WINDIR%\INF\oem14.PNF
%TEMPDIR%\DogKiller.sys Ulteriori analisi hanno accertato che questo file è anch'esso un malware. Riconosciuto come: TR/Expl.Agent.ed

%TEMPDIR%\updata.exe Ulteriori analisi hanno accertato che questo file è anch'esso un malware. Riconosciuto come: TR/Dldr.Geral.uni

%TEMPDIR%\360data.tmp
%PROGRAM FILES%\ATI\amdk8.dll Ulteriori analisi hanno accertato che questo file è anch'esso un malware. Riconosciuto come: TR/Killav.gox

%TEMPDIR%\ope7.tmp



Prova ad eseguire i seguenti file:

– Nome del file:
   • "%SYSDIR%\sc.exe" config PolicyAgent start= auto


– Nome del file:
   • "%SYSDIR%\sc.exe" stop PolicyAgent


– Nome del file:
   • "%SYSDIR%\sc.exe" start PolicyAgent


– Nome del file:
   • runonce -r


– Nome del file:
   • %TEMPDIR%\updata.exe

 Registro Viene aggiunta nel registro la seguente chiave con lo scopo di eseguire il processo dopo il riavvio:

– [HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run]
   • "kav"="%SYSDIR%\kav.exe"



Vengono aggiunte le seguenti chiavi di registro:

– [HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\
   Image File Execution Options\360safe.exe]
   • "Debugger"="rundll32.exe"

– [HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\
   Image File Execution Options\safeboxTray.exe]
   • "Debugger"="rundll32.exe"

– [HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\
   Image File Execution Options\kmailmon.exe]
   • "Debugger"="rundll32.exe"

– [HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\
   Image File Execution Options\ccapp.exe]
   • "Debugger"="rundll32.exe"

– [HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\
   Image File Execution Options\QQDoctor.exe]
   • "Debugger"="rundll32.exe"

– [HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\
   Image File Execution Options\kxesapp.exe]
   • "Debugger"="rundll32.exe"

– [HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\
   Image File Execution Options\mcshield.exe]
   • "Debugger"="rundll32.exe"

– [HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\
   Image File Execution Options\mcupdmgr.exe]
   • "Debugger"="rundll32.exe"

– [HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\
   Image File Execution Options\DrvAnti.exe]
   • "Debugger"="rundll32.exe"

– [HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\
   Image File Execution Options\ccSvcHst.exe]
   • "Debugger"="rundll32.exe"

– [HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\
   Image File Execution Options\bdagent.exe]
   • "Debugger"="rundll32.exe"

– [HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\
   Image File Execution Options\kxedefend.exe]
   • "Debugger"="rundll32.exe"

– [HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\
   Image File Execution Options\alg.exe]
   • "Debugger"="rundll32.exe"

– [HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\
   Image File Execution Options\360delays.exe]
   • "Debugger"="rundll32.exe"

– [HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\
   Image File Execution Options\mcnasvc.exe]
   • "Debugger"="rundll32.exe"

– [HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\
   Image File Execution Options\MPSVC.exe]
   • "Debugger"="rundll32.exe"

– [HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\
   Image File Execution Options\ScanFrm.exe]
   • "Debugger"="rundll32.exe"

– [HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\
   Image File Execution Options\kxetray.exe]
   • "Debugger"="rundll32.exe"

– [HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\
   Image File Execution Options\mcsysmon.exe]
   • "Debugger"="rundll32.exe"

– [HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\
   Image File Execution Options\avp.exe]
   • "Debugger"="rundll32.exe"

– [HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\
   Image File Execution Options\FrameworkService.exe]
   • "Debugger"="rundll32.exe"

– [HKLM\System\CurrentControlSet\Control\Class\
   {82521385-84B9-4AB3-9BC1-B9BD2DD3021A}]
   • "@"="Class for amdk8 devices"
   • "Class"="amdk8"
   • "Icon"="-18"

– [HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\
   Image File Execution Options\RsAgent.exe]
   • "Debugger"="rundll32.exe"

– [HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\
   Image File Execution Options\kxeserv.exe]
   • "Debugger"="rundll32.exe"

– [HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\
   Image File Execution Options\XsClient.exe]
   • "Debugger"="rundll32.exe"

– [HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\
   Image File Execution Options\KPfwSvc.exe]
   • "Debugger"="rundll32.exe"

– [HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\
   Image File Execution Options\antiarp.exe]
   • "Debugger"="rundll32.exe"

– [HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\
   Image File Execution Options\QQDoctorRtp.exe]
   • "Debugger"="rundll32.exe"

– [HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\
   Image File Execution Options\rssafety.exe]
   • "Debugger"="rundll32.exe"

– [HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\
   Image File Execution Options\ekrn.exe]
   • "Debugger"="rundll32.exe"

– [HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\
   Image File Execution Options\rtvscan.exe]
   • "Debugger"="rundll32.exe"

– [HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\
   Image File Execution Options\xcommsvr.exe]
   • "Debugger"="rundll32.exe"

– [HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\
   Image File Execution Options\mcagent.exe]
   • "Debugger"="rundll32.exe"

– [HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\
   Image File Execution Options\egui.exe]
   • "Debugger"="rundll32.exe"

– [HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\
   Image File Execution Options\engineserver.exe]
   • "Debugger"="rundll32.exe"

– [HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\
   Image File Execution Options\MPSVC1.exe]
   • "Debugger"="rundll32.exe"

– [HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\
   Image File Execution Options\360rp.exe]
   • "Debugger"="rundll32.exe"

– [HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\
   Image File Execution Options\KISSvc.exe]
   • "Debugger"="rundll32.exe"

– [HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\
   Image File Execution Options\DrUpdate.exe]
   • "Debugger"="rundll32.exe"

– [HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\
   Image File Execution Options\360SoftMgrSvc.exe]
   • "Debugger"="rundll32.exe"

– [HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\
   Image File Execution Options\KABackReport.exe]
   • "Debugger"="rundll32.exe"

– [HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\
   Image File Execution Options\qutmserv.exe]
   • "Debugger"="rundll32.exe"

– [HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\
   Image File Execution Options\360realpro.exe]
   • "Debugger"="rundll32.exe"

– [HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\
   Image File Execution Options\AgentSvr.exe]
   • "Debugger"="rundll32.exe"

– [HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\
   Image File Execution Options\udaterui.exe]
   • "Debugger"="rundll32.exe"

– [HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\
   Image File Execution Options\RavMon.exe]
   • "Debugger"="rundll32.exe"

– [HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\
   Image File Execution Options\mcshell.exe]
   • "Debugger"="rundll32.exe"

– [HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\
   Image File Execution Options\rfwsrv.exe]
   • "Debugger"="rundll32.exe"

– [HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\
   Image File Execution Options\360Safebox.exe]
   • "Debugger"="rundll32.exe"

– [HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\
   Image File Execution Options\KWatch.exe]
   • "Debugger"="rundll32.exe"

– [HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\
   Image File Execution Options\nbmanti.exe]
   • "Debugger"="rundll32.exe"

– [HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\
   Image File Execution Options\MPSVC2.exe]
   • "Debugger"="rundll32.exe"

– [HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\
   Image File Execution Options\MpfSrv.exe]
   • "Debugger"="rundll32.exe"

– [HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\
   Image File Execution Options\MPMon.exe]
   • "Debugger"="rundll32.exe"

– [HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\
   Image File Execution Options\kwstray.exe]
   • "Debugger"="rundll32.exe"

– [HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\
   Image File Execution Options\defwatch.exe]
   • "Debugger"="rundll32.exe"

– [HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\
   Image File Execution Options\RegGuide.exe]
   • "Debugger"="rundll32.exe"

– [HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\
   Image File Execution Options\upsvc.exe]
   • "Debugger"="rundll32.exe"

– [HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\
   Image File Execution Options\KSafeTray.exe]
   • "Debugger"="rundll32.exe"

– [HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\
   Image File Execution Options\rsnetsvr.exe]
   • "Debugger"="rundll32.exe"

– [HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\
   Image File Execution Options\mcmscsvc.exe]
   • "Debugger"="rundll32.exe"

– [HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\
   Image File Execution Options\360tray.exe]
   • "Debugger"="rundll32.exe"

– [HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\
   Image File Execution Options\RsTray.exe]
   • "Debugger"="rundll32.exe"

– [HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\
   Image File Execution Options\kaccore.exe]
   • "Debugger"="rundll32.exe"

– [HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\
   Image File Execution Options\vsserv.exe]
   • "Debugger"="rundll32.exe"

– [HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\
   Image File Execution Options\QQDrNetMon.exe]
   • "Debugger"="rundll32.exe"

– [HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\
   Image File Execution Options\KSafeSvc.exe]
   • "Debugger"="rundll32.exe"

– [HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\
   Image File Execution Options\vstskmgr.exe]
   • "Debugger"="rundll32.exe"

– [HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\
   Image File Execution Options\zhudongfangyu.exe]
   • "Debugger"="rundll32.exe"

– [HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\
   Image File Execution Options\CCenter.exe]
   • "Debugger"="rundll32.exe"

– [HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\
   Image File Execution Options\KSWebShield.exe]
   • "Debugger"="rundll32.exe"

– [HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\
   Image File Execution Options\KPFW32.exe]
   • "Debugger"="rundll32.exe"

– [HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\
   Image File Execution Options\RavStub.exe]
   • "Debugger"="rundll32.exe"

– [HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\
   Image File Execution Options\naPrdMgr.exe]
   • "Debugger"="rundll32.exe"

– [HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\
   Image File Execution Options\McProxy.exe]
   • "Debugger"="rundll32.exe"

– [HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\
   Image File Execution Options\SHSTAT.exe]
   • "Debugger"="rundll32.exe"

– [HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\
   Image File Execution Options\McTray.exe]
   • "Debugger"="rundll32.exe"

– [HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\
   Image File Execution Options\mfeann.exe]
   • "Debugger"="rundll32.exe"

– [HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\
   Image File Execution Options\KavStart.exe]
   • "Debugger"="rundll32.exe"

– [HKLM\SYSTEM\CurrentControlSet\Control\Class\
   {82521385-84B9-4AB3-9BC1-B9BD2DD3021A}\0000]
   • "DriverDate"="6-23-2010"
   • "DriverDateData"=hex:00,C0,E4,05,67,12,CB,01
   • "DriverDesc"="amdk8 Device"
   • "DriverVersion"="1.0.0.0"
   • "InfPath"="oem14.inf"
   • "InfSection"="amdk8_DDI"
   • "InfSectionExt"=".NT"
   • "MatchingDeviceId"="*amdk8device"
   • "ProviderName"="Microsoft"

– [HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\
   Image File Execution Options\RavTask.exe]
   • "Debugger"="rundll32.exe"

– [HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\
   Image File Execution Options\360sd.exe]
   • "Debugger"="rundll32.exe"

– [HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\
   Image File Execution Options\KVSrvXP.exe]
   • "Debugger"="rundll32.exe"

– [HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\
   Image File Execution Options\vptray.exe]
   • "Debugger"="rundll32.exe"

– [HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\
   Image File Execution Options\mfevtps.exe]
   • "Debugger"="rundll32.exe"

– [HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\
   Image File Execution Options\ccEvtMgr.exe]
   • "Debugger"="rundll32.exe"

– [HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\
   Image File Execution Options\mcinsupd.exe]
   • "Debugger"="rundll32.exe"

– [HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\
   Image File Execution Options\LiveUpdate360.exe]
   • "Debugger"="rundll32.exe"

– [HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\
   Image File Execution Options\ccSetMgr.exe]
   • "Debugger"="rundll32.exe"

– [HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\
   Image File Execution Options\DSMain.exe]
   • "Debugger"="rundll32.exe"

– [HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\
   Image File Execution Options\kxescore.exe]
   • "Debugger"="rundll32.exe"

– [HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\
   Image File Execution Options\kppserv.exe]
   • "Debugger"="rundll32.exe"

– [HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\
   Image File Execution Options\KPPTray.exe]
   • "Debugger"="rundll32.exe"

– [HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\
   Image File Execution Options\RavMonD.exe]
   • "Debugger"="rundll32.exe"

– [HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\
   Image File Execution Options\livesrv.exe]
   • "Debugger"="rundll32.exe"

– [HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\
   Image File Execution Options\Uplive.exe]
   • "Debugger"="rundll32.exe"

– [HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\
   Image File Execution Options\Rav.exe]
   • "Debugger"="rundll32.exe"



Viene cambiata la seguente chiave di registro:

– [HKLM\SYSTEM\CurrentControlSet\Control\GroupOrderList]
   Nuovo valore:
   • "Extended Base"=hex:0B,00,00,00,01,00,00,00,02,00,00,00,04,00,00,00,03,00,00,00,05,00,00,00,06,00,00,00,07,00,00,00,08,00,00,00,09,00,00,00,0A,00,00,00,0B,00,00,00

 Come il virus si inserisce nei processi – Si inserisce come thread remoto in un processo.

    Nome del processo:
   • sc.exe


 Varie Accede alle risorse Internet:
   • http://124.232.147.3:84/**********


Mutex:
Crea il seguente Mutex:
   • ACDTEST......

 Dettagli del file Linguaggio di programmazione:
Il malware è stato scritto in MS Visual C++.


Software di compressione:
Per complicarne l'individuazione e ridurre la dimensione del file, viene compresso con un software di compressione.

Descrizione inserita da Petre Galan su venerdì 15 aprile 2011
Descrizione aggiornata da Petre Galan su venerdì 15 aprile 2011

Indietro . . . .
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