Full description

Nume:	TR/Fake.Rean.491
Descoperit pe data de:	03/04/2011
Tip:	Troian
ITW:	Da
Numar infectii raportate:	Scazut
Potential de raspandire:	Scazut
Potential de distrugere:	Scazut spre mediu
Fisier static:	Da
Marime:	335.872 Bytes
MD5:	44DD9283FF74F64ACFB5D3D5AED10FE9
Versiune VDF:	7.11.05.171 - 2011年4月3日日曜日
Versiune IVDF:	7.11.05.171 - 2011年4月3日日曜日

General Metoda de raspandire:
   • Nu are rutina proprie de raspandire

Alias:
   • TrendMicro: TROJ_FAKEAV.SMIN
   • Sophos: Mal/Behav-321
   • Microsoft: Rogue:Win32/FakeRean

Sistem de operare:
   • Windows 2000
   • Windows XP
   • Windows 2003
   • Windows Vista
   • Windows 7

Efecte secundare:
   • Blocheaza accesul la website-uri ale firmelor de securitate
   • Creeaza fisiere
   • Reduce setarile de securitate
   • Modificari in registri

Imediat dupa lansarea in executie, pe ecran este afisat:

Fisiere Se copiaza in urmatoarea locatie:
• %HOME%\Local Settings\Application Data\%combinatie de caractere aleatoare%.exe

Sterge copia initiala a virusului.

Sunt create fisierele:

– %TEMPDIR%\g41xxir76qjdv1tnu3dq8051p8x0x
– %ALLUSERSPROFILE%\Application Data\g41xxir76qjdv1tnu3dq8051p8x0x
– %HOME%\Local Settings\Application Data\g41xxir76qjdv1tnu3dq8051p8x0x
– %TEMPDIR%\g41xxir76qjdv1tnu3dq8051p8x0x
– %HOME%\Templates\g41xxir76qjdv1tnu3dq8051p8x0x

Registrii sistemului Urmatoarele chei sunt adaugate in registrii sistemului:

– [HKLM\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\
   FirewallPolicy\StandardProfile]
   • "DoNotAllowExceptions"=dword:00000000
   • "EnableFirewall"=dword:00000000
   • "DisableNotifications"=dword:00000001

– [HKLM\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\
   FirewallPolicy\DomainProfile]
   • "EnableFirewall"=dword:00000000
   • "DoNotAllowExceptions"=dword:00000000
   • "DisableNotifications"=dword:00000001

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

– [HKCR\.exe\shell\open\command]
   • "(Default)"="\"%HOME%\Local Settings\Application Data\\%combinatie de caractere aleatoare%.exe\" -a \"%1\" %*"
   • "IsolatedCommand"="\"%1\" %*"

– [HKCR\exefile\shell\open\command]
   • "(Default)"="\"%HOME%\Local Settings\Application Data\\%combinatie de caractere aleatoare%.exe\" -a \"%1\" %*"
   • "IsolatedCommand"="\"%1\" %*"

– [HKCR\exefile\shell\runas\command]
   • "(Default)"="\"%1\" %*"
   • "IsolatedCommand"="\"%1\" %*"

– [HKLM\SOFTWARE\Clients\StartMenuInternet\IEXPLORE.EXE\shell\open\
   command]
   • "(Default)"="\"%HOME%\Local Settings\Application Data\\%combinatie de caractere aleatoare%.exe\" -a \"%PROGRAM FILES%\Intern"

Urmatoarea cheie din registri este modificata:

– [HKLM\SOFTWARE\Microsoft\Security Center]
   Noua valoare:
   • "AntiVirusDisableNotify"=dword:00000001
   • "FirewallDisableNotify"=dword:00000001
   • "FirewallOverride"=dword:00000001
   • "UpdatesDisableNotify"=dword:00000001
   • "AntiVirusOverride"=dword:00000001

Injectarea codului malware in alte procese – Se injecteaza ca un thread remote intr-un proces.

Numele procesului:
• iexplore.exe

Alte informatii Acceseaza resurse de pe internet:
   • **********yziriryvi.com/1009000112;
      **********ipemura.com/1009000112;
      **********awekugygil.com/1009000112;
      **********ifyzadiby.com/1009000112;
      **********ijinymut.com/1009000112;
      **********uwemixonav.com/1009000112;
      **********exynogemi.com/1009000112;
      **********elaticik.com/1009000112;
      **********inolecowary.com/1009000112;
      **********ofociv.com/1009000112;
      **********ucerybaqecy.com/1009000112;
      **********upowibi.com/1009000112;
      **********ujykolenuja.com/1009000112;
      **********exyhun.com/1009000112;
      **********oralipijago.com/1009000112;
      **********ykacagatet.com/1009000112;
      **********ulipum.com/1009000112;
      **********isesyf.com/1009000112;
      **********ityvik.com/1009000112;
      **********ejutyhyfu.com/1009000112;
      **********usaseda.com/1009000112;
      **********ehiqino.com/1009000112;
      **********idicawisos.com/1009000112;
      **********ibipaj.com/1009000112;
      **********ixydyf.com/1009000112;
      **********unemymyko.com/1009000112;
      **********upinycom.com/1009000112;
      **********ygizeq.com/1009000112;
      **********emolezala.com/1009000112;
      **********ecolun.com/1009000112

説明の挿入者 Andrei Ilie の 2011年8月24日水曜日
説明の更新者 Andrei Ilie の 2011年8月24日水曜日

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