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Nom:TR/Dldr.Geral.vng
La date de la découverte:16/02/2011
Type:Cheval de Troie
Sous type:Downloader
En circulation:Oui
Infections signalées Faible a moyen
Potentiel de distribution:Faible
Potentiel de destruction:Faible a moyen
Fichier statique:Oui
Taille du fichier:39.839 Octets
Somme de contrôle MD5:9b0c12025217508a1436683efa4faab5
Version VDF:7.10.08.215
Version IVDF:7.11.03.121 - mercredi 16 février 2011

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


Plateformes / Systèmes d'exploitation:
   • Windows 2000
   • Windows XP
   • Windows 2003


Effets secondaires:
   • Il crée des fichiers malveillants
   • Il modifie des registres

 Fichiers Il s'autocopie dans l'emplacement suivant:
   • %SYSDIR%\kav.exe



Il supprime sa propre copie, exécutée initialement



Il supprime les fichiers suivants:
   • %PROGRAM FILES%\ATI\amdk8.sys
   • %SYSDIR%\ccte1sto.dat
   • %PROGRAM FILES%\ATI\amdk8.dll
   • %TEMPDIR%\DogKiller.sys
   • %TEMPDIR%\360data.tmp
   • %PROGRAM FILES%\ATI\amdk8.inf



Les fichiers suivants sont créés:

– %WINDIR%\INF\oem14.inf Ceci est un fichier texte non malveillant avec le contenu suivant:
   • %code faisant fonctionner les logiciels malveillants%

– %PROGRAM FILES%\ATI\amdk8.inf Ceci est un fichier texte non malveillant avec le contenu suivant:
   • %code faisant fonctionner les logiciels malveillants%

– %PROGRAM FILES%\ATI\amdk8.sys Les investigations ultérieures ont prouvé que ce ficher est également un Malware. Détecté comme: Rkit/Agent.bhyh

– %SYSDIR%\ccte1sto.dat Les investigations ultérieures ont prouvé que ce ficher est également un Malware. Détecté comme: TR/Spy.16896.75

– %SYSDIR%\DRIVERS\amdk8.sys Les investigations ultérieures ont prouvé que ce ficher est également un Malware. Détecté comme: Rkit/Agent.bhyh

– %WINDIR%\INF\oem14.PNF
– %TEMPDIR%\DogKiller.sys Les investigations ultérieures ont prouvé que ce ficher est également un Malware. Détecté comme: TR/Expl.Agent.ed

– %TEMPDIR%\updata.exe Les investigations ultérieures ont prouvé que ce ficher est également un Malware. Détecté comme: TR/Dldr.Geral.uni

– %TEMPDIR%\360data.tmp
– %PROGRAM FILES%\ATI\amdk8.dll Les investigations ultérieures ont prouvé que ce ficher est également un Malware. Détecté comme: TR/Killav.gox

– %TEMPDIR%\ope7.tmp



Il essaie d’exécuter les fichiers suivants :

– Nom de fichier: Noms des fichiers:
   • "%SYSDIR%\sc.exe" config PolicyAgent start= auto


– Nom de fichier: Noms des fichiers:
   • "%SYSDIR%\sc.exe" stop PolicyAgent


– Nom de fichier: Noms des fichiers:
   • "%SYSDIR%\sc.exe" start PolicyAgent


– Nom de fichier: Noms des fichiers:
   • runonce -r


– Nom de fichier: Noms des fichiers:
   • %TEMPDIR%\updata.exe

 Registre La clé de registre suivante est ajoutée afin de lancer le processus après le redémarrage:

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



Les clés de registre suivantes sont ajoutée:

– [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"



La clé de registre suivante est changée:

– [HKLM\SYSTEM\CurrentControlSet\Control\GroupOrderList]
   La nouvelle valeur:
   • "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

 L'injection du code viral dans d'autres processus – Il s'injecte comme un nouveau fil d'exécution à distance dans un processus.

    Nom du processus :
   • sc.exe


 Informations divers Accède à des ressources Internet :
   • http://124.232.147.3:84/**********


Mutex:
Il crée le Mutex suivant:
   • ACDTEST......

 Détails de fichier Langage de programmation:
 Le fichier a été écrit en MS Visual C++.


Logiciel de compression des fichiers exécutables:
Afin d'entraver la détection et de réduire la taille du fichier il est compressé avec un logiciel de compression des exécutables.

Description insérée par Petre Galan le vendredi 15 avril 2011
Description mise à jour par Petre Galan le vendredi 15 avril 2011

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