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Nume:TR/PSW.Magania.dfoc
Descoperit pe data de:30/05/2010
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:185.856 Bytes
MD5:4f9c69751b9d77229b5ddb2d1ea129b2
Versiune VDF:7.10.03.80
Versiune IVDF:7.10.07.196 - Sunday, May 30, 2010

 General Metoda de raspandire:
   • Functia autorun


Alias:
   •  Bitdefender: Trojan.PWS.OnlineGames.KDKY
   •  Panda: W32/Lineage.LLV
   •  Eset: Win32/PSW.OnLineGames.OUM


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


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

 Fisiere Se copiaza in urmatoarele locatii:
   • %unitate disc%\313omdph.exe
   • %SYSDIR%\cyban.exe



Sterge copia initiala a virusului.



Sterge urmatoarele fisiere:
   • %SYSDIR%\cyban0.dll
   • %TEMPDIR%\ah1.rar
   • %TEMPDIR%\ah.exe



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%

– %TEMPDIR%\ah1.rar
– %TEMPDIR%\ah.exe
– %SYSDIR%\cyban0.dll Analiza ulterioara a relevat ca si acest fisier este malware. Detectat ca: TR/PSW.Magania.dfob

– %SYSDIR%\ieban0.dll Analiza ulterioara a relevat ca si acest fisier este malware. Detectat ca: TR/PSW.Magania.dfal

– %SYSDIR%\ahnabc0.dll Analiza ulterioara a relevat ca si acest fisier este malware. Detectat ca: TR/Crypt.ASPM.Gen

– %SYSDIR%\ahnabc.exe Analiza ulterioara a relevat ca si acest fisier este malware. Detectat ca: TR/Crypt.ASPM.Gen

– %temporary internet files%\ah1[1].rar
– %temporary internet files%\ah[1].rar
– %SYSDIR%\ahnie0.dll Analiza ulterioara a relevat ca si acest fisier este malware. Detectat ca: TR/Crypt.ASPM.Gen




Incearca sa descarce cateva fisiere:

– Adresa este urmatoarea:
   • http://www.googlevmk.com/1hg/**********


– Adresa este urmatoarea:
   • http://www.baiduwda.com/1hg/**********




Incearca sa execute urmatoarele fisiere:

– Numele fisierului:
   • %SYSDIR%\regsvr32.exe /s %SYSDIR%\ieban0.dll


– Numele fisierului:
   • "%PROGRAM FILES%\Internet Explorer\IEXPLORE.EXE"


– Numele fisierului:
   • "%TEMPDIR%\ah.exe"


– Numele fisierului:
   • %SYSDIR%\regsvr32.exe /s %SYSDIR%\ahnie0.dll

 Registrii sistemului Urmatoarea cheie este adaugata in registri pentru a rula procesul la repornirea sistemului:

– [HKCU\Software\Microsoft\Windows\CurrentVersion\Run]
   • "ahncsos"="%SYSDIR%\ahnabc.exe"
   • "cybansos"="%SYSDIR%\cyban.exe"



Urmatoarele chei sunt adaugate in registrii sistemului:

– [HKLM\SOFTWARE\Classes\CLSID\{70F6E582-8FF4-4082-829E-C172131DE31A}\
   VersionIndependentProgID]
   • "@"="IEHlprObj.IEHlprObj"

– [HKLM\SOFTWARE\Classes\TypeLib\
   {70F6E522-8FF4-4082-829E-C172131DE31A}\1.0]
   • "@"="IEHelper 1.0 Type Library"

– [HKLM\SOFTWARE\Classes\Interface\
   {5DA743EB-6725-4ADE-BF17-C328743011FD}\ProxyStubClsid]
   • "@"="{00020424-0000-0000-C000-000000000046}"

– [HKLM\SOFTWARE\Classes\TypeLib\
   {5DA7432B-6725-4ADE-BF17-C328743011FD}\1.0\0\win32]
   • "@"="%SYSDIR%\ahnie0.dll"

– [HKLM\SOFTWARE\Classes\Interface\
   {5DA743EB-6725-4ADE-BF17-C328743011FD}]
   • "@"="IIEHlprObj"

– [HKLM\SOFTWARE\Classes\Interface\
   {70F6E583-8FF4-4082-829E-C172131DE31A}\TypeLib]
   • "@"="{70F6E522-8FF4-4082-829E-C172131DE31A}"
   • "Version"="1.0"

– [HKLM\SOFTWARE\Classes\Interface\
   {70F6E583-8FF4-4082-829E-C172131DE31A}\ProxyStubClsid32]
   • "@"="{00020424-0000-0000-C000-000000000046}"

– [HKLM\SOFTWARE\Classes\TypeLib\
   {70F6E522-8FF4-4082-829E-C172131DE31A}\1.0\HELPDIR]
   • "@"="%SYSDIR%\"

– [HKLM\SOFTWARE\Classes\CLSID\{70F6E582-8FF4-4082-829E-C172131DE31A}\
   ProgID]
   • "@"="IEHlprObj.IEHlprObj.1"

– [HKLM\SOFTWARE\Classes\Interface\
   {70F6E583-8FF4-4082-829E-C172131DE31A}]
   • "@"="IIEHlprObj"

– [HKLM\SOFTWARE\Classes\CLSID\
   {5DA743EA-6725-4ADE-BF17-C328743011FD}]
   • "@"="IEHlprObj Class"

– [HKLM\SOFTWARE\Classes\TypeLib\
   {5DA7432B-6725-4ADE-BF17-C328743011FD}\1.0\FLAGS]
   • "@"="0"

– [HKLM\SOFTWARE\Classes\Interface\
   {5DA743EB-6725-4ADE-BF17-C328743011FD}\ProxyStubClsid32]
   • "@"="{00020424-0000-0000-C000-000000000046}"

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

– [HKLM\SOFTWARE\Classes\CLSID\{70F6E582-8FF4-4082-829E-C172131DE31A}\
   InprocServer32]
   • "@"="%SYSDIR%\ieban0.dll"
   • "ThreadingModel"="Apartment"

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

– [HKLM\SOFTWARE\Classes\CLSID\MNDOWN]
   • "urlinfo"="chhjmf.t"

– [HKLM\SOFTWARE\Classes\CLSID\{5DA743EA-6725-4ADE-BF17-C328743011FD}\
   ProgID]
   • "@"="IEHlprObj.IEHlprObj.1"

– [HKLM\SOFTWARE\Classes\CLSID\
   {70F6E582-8FF4-4082-829E-C172131DE31A}]
   • "@"="IEHlprObj Class"

– [HKLM\SOFTWARE\Classes\IEHlprObj.IEHlprObj.1\CLSID]
   • "@"="{5DA743EA-6725-4ADE-BF17-C328743011FD}"

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

– [HKLM\SOFTWARE\Classes\TypeLib\
   {70F6E522-8FF4-4082-829E-C172131DE31A}\1.0\0\win32]
   • "@"="%SYSDIR%\ieban0.dll"

– [HKLM\SOFTWARE\Classes\TypeLib\
   {5DA7432B-6725-4ADE-BF17-C328743011FD}\1.0]
   • "@"="IEHelper 1.0 Type Library"

– [HKLM\SOFTWARE\Classes\CLSID\{5DA743EA-6725-4ADE-BF17-C328743011FD}\
   VersionIndependentProgID]
   • "@"="IEHlprObj.IEHlprObj"

– [HKLM\SOFTWARE\Classes\TypeLib\
   {70F6E522-8FF4-4082-829E-C172131DE31A}\1.0\FLAGS]
   • "@"="0"

– [HKLM\SOFTWARE\Classes\Interface\
   {70F6E583-8FF4-4082-829E-C172131DE31A}\ProxyStubClsid]
   • "@"="{00020424-0000-0000-C000-000000000046}"

– [HKLM\SOFTWARE\Classes\Interface\
   {5DA743EB-6725-4ADE-BF17-C328743011FD}\TypeLib]
   • "@"="{5DA7432B-6725-4ADE-BF17-C328743011FD}"
   • "Version"="1.0"

– [HKLM\SOFTWARE\Classes\TypeLib\
   {5DA7432B-6725-4ADE-BF17-C328743011FD}\1.0\HELPDIR]
   • "@"="%SYSDIR%\"

– [HKLM\SOFTWARE\Classes\CLSID\{5DA743EA-6725-4ADE-BF17-C328743011FD}\
   InprocServer32]
   • "@"="%SYSDIR%\ahnie0.dll"
   • "ThreadingModel"="Apartment"



Urmatoarele chei din registri sunt modificate:

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

– [HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer]
   Noua valoare:
   • "NoDriveTypeAutoRun"=dword:0x00000091

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

 Injectarea codului malware in alte procese –  Injecteaza fisierul urmator intr-un proces: %SYSDIR%\cyban0.dll

    Numele procesului:
   • explorer.exe



– Se injecteaza ca un thread remote intr-un proces.

    Numele procesului:
   • iexplore.exe



–  Injecteaza fisierul urmator intr-un proces: %SYSDIR%\ahnabc0.dll

    Numele procesului:
   • explorer.exe


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

Description inserted by Petre Galan on Friday, July 30, 2010
Description updated by Andrei Ivanes on Tuesday, August 3, 2010

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