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Win32.HLLW.Autoruner1.16029
Added to the Dr.Web virus database:
2012-05-14
Virus description added:
2012-06-03
Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
[<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] '%TEMP%\ev~nen^e2.exe' = '%TEMP%\ev~nen^e2.exe'
Creates or modifies the following files:
Creates the following files on removable media:
<Drive name for removable media>:\win7~con.exe
<Drive name for removable media>:\autorun.inf
Malicious functions:
To bypass firewall, removes or modifies the following registry keys:
[<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '<SYSTEM32>\ftp.exe' = '<SYSTEM32>\ftp.exe:*:Enabled:Windows Update'
To complicate detection of its presence in the operating system,
forces the system hide from view:
hidden files
file extensions
Creates and executes the following:
Executes the following:
<SYSTEM32>\reg.exe ADD HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced /V Hidden /T REG_DWORD /D 00000002 /F
<SYSTEM32>\reg.exe ADD HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced /V ShowSuperHidden /T REG_DWORD /D 00000000 /F
<SYSTEM32>\reg.exe ADD HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced /V HideFileExt /T REG_DWORD /D 00000001 /F
<SYSTEM32>\reg.exe ADD HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run /v "%TEMP%\ev~nen^e2.exe" /t REG_SZ /d "%TEMP%\ev~nen^e2.exe" /f
<SYSTEM32>\reg.exe ADD HKLM\SYSTEM\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List /v "<SYSTEM32>\ftp.exe" /d "<SYSTEM32>\ftp.exe:*:Enabled:Windows Update" /f
<SYSTEM32>\ftp.exe -s:s63$$.ini
Modifies file system :
Creates the following files:
%WINDIR%\Offline Web Pages .exe
%WINDIR%\pchealth .exe
%WINDIR%\mui .exe
%WINDIR%\ocx .exe
%WINDIR%\Provisioning .exe
%WINDIR%\pss .exe
%WINDIR%\PeerNet .exe
%WINDIR%\Prefetch .exe
%WINDIR%\Installer .exe
%WINDIR%\java .exe
%WINDIR%\ime .exe
%WINDIR%\inf .exe
%WINDIR%\msagent .exe
%WINDIR%\msapps .exe
%WINDIR%\Media .exe
%WINDIR%\Microsoft.NET .exe
%WINDIR%\Registration .exe
%WINDIR%\Web .exe
%WINDIR%\WinSxS .exe
%WINDIR%\Temp .exe
%WINDIR%\twain_32 .exe
%TEMP%\CRNJEUFU_%USERNAME%.gif
%TEMP%\s63$$.ini
%WINDIR%\<Auxiliary name> .exe
%TEMP%\ev~nen^e2.exe
%WINDIR%\security .exe
%WINDIR%\SoftwareDistribution .exe
%WINDIR%\repair .exe
%WINDIR%\Resources .exe
<SYSTEM32> .exe
<Auxiliary element>
%WINDIR%\srchasst .exe
%WINDIR%\system .exe
%WINDIR%\Help .exe
%PROGRAM_FILES%\MSN Gaming Zone .exe
%PROGRAM_FILES%\NetMeeting .exe
%PROGRAM_FILES%\MSBuild .exe
%PROGRAM_FILES%\MSN .exe
%PROGRAM_FILES%\Reference Assemblies .exe
%PROGRAM_FILES%\Uninstall Information .exe
%PROGRAM_FILES%\Online Services .exe
%PROGRAM_FILES%\Outlook Express .exe
%PROGRAM_FILES%\FireFox .exe
%PROGRAM_FILES%\Internet Explorer .exe
%CommonProgramFiles% .exe
%PROGRAM_FILES%\ComPlus Applications .exe
%PROGRAM_FILES%\Microsoft.NET .exe
%PROGRAM_FILES%\Movie Maker .exe
%PROGRAM_FILES%\Messenger .exe
%PROGRAM_FILES%\microsoft frontpage .exe
%PROGRAM_FILES%\Windows Media Player .exe
%WINDIR%\Cursors .exe
%WINDIR%\Debug .exe
%WINDIR%\Config .exe
%WINDIR%\Connection Wizard .exe
%WINDIR%\ehome .exe
%WINDIR%\Fonts .exe
%WINDIR%\Downloaded Program Files .exe
%WINDIR%\Driver Cache .exe
%PROGRAM_FILES%\xerox .exe
%WINDIR%\$NtUninstallKB942288-v3$ .exe
%PROGRAM_FILES%\Windows NT .exe
%PROGRAM_FILES%\WindowsUpdate .exe
%WINDIR%\AppPatch .exe
%WINDIR%\assembly .exe
%WINDIR%\$NtUninstallWIC$ .exe
%WINDIR%\addins .exe
Sets the 'hidden' attribute to the following files:
<Drive name for removable media>:\win7~con.exe
<Drive name for removable media>:\autorun.inf
Network activity:
Connects to:
'ft#.#pg.com.br':21
'localhost':1037
UDP:
DNS ASK ft#.#pg.com.br
'<Private IP address>':1038
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