Full description

Virus:	TR/FakeAV.aid.1
Date discovered:	25/05/2011
Type:	Trojan
In the wild:	Yes
Reported Infections:	Low
Distribution Potential:	Low
Damage Potential:	Low to medium
Static file:	Yes
VDF version:	7.11.08.140 - Wednesday, May 25, 2011
IVDF version:	7.11.08.140 - Wednesday, May 25, 2011

General Method of propagation:
   • No own spreading routine

Aliases:
   • Kaspersky: Trojan.Win32.FakeAV.dcoy
   • Sophos: Mal/FakeAV-JR
   • Microsoft: Rogue:Win32/FakeRean

Platforms / OS:
   • Windows 2000
   • Windows XP
   • Windows 2003
   • Windows Vista
   • Windows 7

Side effects:
   • Blocks access to security websites
   • Drops files
   • Lowers security settings
   • Registry modification

Right after execution the following information is displayed:

Files It copies itself to the following location:
• %HOME%\Local Settings\Application Data\%random character string%.exe

It deletes the initially executed copy of itself.

The following files are created:

– %TEMPDIR%\%random character string%
– %ALLUSERSPROFILE%\Application Data\%random character string%
– %HOME%\Local Settings\Application Data\%random character string%
– %TEMPDIR%\%random character string%
– %HOME%\Templates\%random character string%

Registry The following registry keys are added:

– [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\\%random character string%.exe\" -a \"%1\" %*"
   • "IsolatedCommand"="\"%1\" %*"

– [HKCR\exefile\shell\open\command]
   • "(Default)"="\"%HOME%\Local Settings\Application Data\\%random character string%.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\\%random character string%.exe\" -a \"%PROGRAM FILES%\Intern"

The following registry key is changed:

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

Injection – It injects itself as a remote thread into a process.

Process name:
• iexplore.exe

Miscellaneous Accesses internet resources:
   • **********yziriryvi.com/%several random digits%;
      **********ipemura.com/%several random digits%;
      **********awekugygil.com/%several random digits%;
      **********ifyzadiby.com/%several random digits%;
      **********ijinymut.com/%several random digits%;
      **********uwemixonav.com/%several random digits%;
      **********exynogemi.com/%several random digits%;
      **********elaticik.com/%several random digits%;
      **********inolecowary.com/%several random digits%;
      **********ofociv.com/%several random digits%;
      **********ucerybaqecy.com/%several random digits%;
      **********upowibi.com/%several random digits%;
      **********ujykolenuja.com/%several random digits%;
      **********exyhun.com/%several random digits%;
      **********oralipijago.com/%several random digits%;
      **********ykacagatet.com/%several random digits%;
      **********ulipum.com/%several random digits%;
      **********isesyf.com/%several random digits%;
      **********ityvik.com/%several random digits%;
      **********ejutyhyfu.com/%several random digits%;
      **********usaseda.com/%several random digits%;
      **********ehiqino.com/%several random digits%;
      **********idicawisos.com/%several random digits%;
      **********ibipaj.com/%several random digits%;
      **********ixydyf.com/%several random digits%;
      **********unemymyko.com/%several random digits%;
      **********upinycom.com/%several random digits%;
      **********ygizeq.com/%several random digits%;
      **********emolezala.com/%several random digits%;
      **********ecolun.com/%several random digits%

Description inserted by Andrei Ilie on 25 Ağustos 2011 Perşembe
Description updated by Andrei Ilie on 25 Ağustos 2011 Perşembe

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