Nume:TR/OnlineGam.187539
Descoperit pe data de:03/11/2009
Tip:Troian
ITW:Da
Numar infectii raportate:Scazut spre mediu
Potential de raspandire:Scazut spre mediu
Potential de distrugere:Scazut spre mediu
Fisier static:Da
Marime:187.539 Bytes
MD5:2e5eff01b2dcdcf2dda3b66d0d124cb4
Versiune IVDF:7.01.06.185 - Dienstag, 3. November 2009

 General Metoda de raspandire:
   • Functia autorun


Alias:
   •  Panda: W32/Lineage.KTI
   •  Eset: Win32/PSW.OnLineGames.NNU
   •  Bitdefender: Trojan.Generic.1269521


Sistem de operare:
   • Windows 2000
   • Windows XP
   • Windows 2003


Efecte secundare:
   • Descarca un fisier malware
   • Creeaza fisiere malware
   • Reduce setarile de securitate
   • Modificari in registri

 Fisiere Se copiaza in urmatoarele locatii:
   • %unitate disc%\pei.cmd
   • %SYSDIR%\kvosoft.exe



Sterge copia initiala a virusului.



Sterge urmatorul fisier:
   • %SYSDIR%\drivers\klif.sys



Sunt create fisierele:

– %unitate disc%\autorun.inf Acesta este un fisier text care nu prezinta pericol si are urmatorul continut:
   • %cod care ruleaza fisierul malitios%

– %SYSDIR%\dsetwem0.dll Analiza ulterioara a relevat ca si acest fisier este malware. Detectat ca: TR/Crypt.ZPACK.Gen

– %SYSDIR%\hgkjghg0.dll Analiza ulterioara a relevat ca si acest fisier este malware. Detectat ca: TR/Vundo

– %SYSDIR%\drivers\klif.sys Detectat ca: Rkit/Agent.NM




Incearca sa descarce un fisier:

– Adresa este urmatoarea:
   • http://frt7k.com/xhg2/**********
La momentul realizarii descrierii, acest fisier nu era disponibil pentru o analiza ulterioara.

 Registrii sistemului Una din urmatoarele valori este adaugata in registri pentru pornirea automata a procesului dupa reboot:

–  [HKCU\Software\Microsoft\Windows\CurrentVersion\Run]
   • "kvasoft"="%SYSDIR%\kvosoft.exe"



Se sterge urmatoarea cheie din registri, inclusiv toate valorile si cheile subordnate:
   • [HKLM\System\CurrentControlSet\Services\KAVsys]



Urmatoarele chei sunt adaugate in registrii sistemului:

– [HKLM\SOFTWARE\Classes\TypeLib\
   {CE7C3CE2-4B15-11D1-ABED-709549C10000}\1.0\FLAGS]
   • "@"="0"

– [HKLM\SOFTWARE\Classes\IEHlprObj.IEHlprObj\CurVer]
   • "@"="IEHlprObj.IEHlprObj.1"

– [HKLM\SOFTWARE\Classes\CLSID\
   {CE7C3CF0-4B15-11D1-ABED-709549C10000}]
   • "@"="IEHlprObj Class"

– [HKLM\SOFTWARE\Classes\IEHlprObj.IEHlprObj.1]
   • "@"="IEHlprObj Class"

– [HKLM\SOFTWARE\Classes\Interface\
   {CE7C3CEF-4B15-11D1-ABED-709549C10000}]
   • "@"="IIEHlprObj"

– [HKLM\SOFTWARE\Classes\Interface\
   {CE7C3CEF-4B15-11D1-ABED-709549C10000}\ProxyStubClsid32]
   • "@"="{00020424-0000-0000-C000-000000000046}"

– [HKLM\SOFTWARE\Classes\TypeLib\
   {CE7C3CE2-4B15-11D1-ABED-709549C10000}\1.0\0\win32]
   • "@"="%SYSDIR%\hgkjghg0.dll"

– [HKLM\SOFTWARE\Classes\CLSID\{CE7C3CF0-4B15-11D1-ABED-709549C10000}\
   ProgID]
   • "@"="IEHlprObj.IEHlprObj.1"

– [HKLM\SOFTWARE\Classes\IEHlprObj.IEHlprObj]
   • "@"="IEHlprObj Class"

– [HKLM\SOFTWARE\Classes\Interface\
   {CE7C3CEF-4B15-11D1-ABED-709549C10000}\ProxyStubClsid]
   • "@"="{00020424-0000-0000-C000-000000000046}"

– [HKLM\SOFTWARE\Classes\Interface\
   {CE7C3CEF-4B15-11D1-ABED-709549C10000}\TypeLib]
   • "@"="{CE7C3CE2-4B15-11D1-ABED-709549C10000}"
   • "Version"="1.0"

– [HKLM\SOFTWARE\Classes\TypeLib\
   {CE7C3CE2-4B15-11D1-ABED-709549C10000}\1.0\HELPDIR]
   • "@"="%SYSDIR%\"

– [HKLM\SOFTWARE\Classes\CLSID\{CE7C3CF0-4B15-11D1-ABED-709549C10000}\
   InprocServer32]
   • "@"="%SYSDIR%\hgkjghg0.dll"
   • "ThreadingModel"="Apartment"

– [HKLM\SOFTWARE\Classes\IEHlprObj.IEHlprObj.1\CLSID]
   • "@"="{CE7C3CF0-4B15-11D1-ABED-709549C10000}"

– [HKLM\SOFTWARE\Classes\TypeLib\
   {CE7C3CE2-4B15-11D1-ABED-709549C10000}\1.0]
   • "@"="IEHelper 1.0 Type Library"

– [HKLM\SOFTWARE\Classes\CLSID\{CE7C3CF0-4B15-11D1-ABED-709549C10000}\
   VersionIndependentProgID]
   • "@"="IEHlprObj.IEHlprObj"

– [HKLM\System\CurrentControlSet\Services\KAVsys]
   • "ErrorControl"=dword:0x00000001
   • "ImagePath"="\??\%SYSDIR%\drivers\klif.sys"
   • "Start"=dword:0x00000001
   • "Type"=dword:0x00000001



Urmatoarele chei din registri sunt modificate:

– [HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced]
   Noua valoare:
   • "Hidden"=dword:0x00000002
   • "ShowSuperHidden"=dword:0x00000000

– [HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\
   Folder\Hidden\SHOWALL]
   Noua valoare:
   • "CheckedValue"=dword:0x00000000

 Detaliile fisierului Compresia fisierului:
Pentru a ingreuna detectia si a reduce marimea fisierului, este folosit un program de compresie runtime.

Die Beschreibung wurde erstellt von Petre Galan am Dienstag, 2. März 2010
Die Beschreibung wurde geändert von Petre Galan am Mittwoch, 3. März 2010

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