Win32.HLLW.Autoruner.53388

Added to the Dr.Web virus database: 2011-07-06

Virus description added: 2011-07-06

To ensure autorun and distribution:

Modifies the following registry keys:

[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'Winupdater' = '<SYSTEM32>\Winupdater.exe'
[<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon] 'UserInit' = '<SYSTEM32>\userinit.exe,<SYSTEM32>\Winupdater.exe'

Creates the following files on removable media:

<Drive name for removable media>:\RECYCLER\S-1-5-21-1482476501-3352491937-682996330-1013\msexplorer.exe
<Drive name for removable media>:\autorun.inf

Malicious functions:

Creates and executes the following:

Executes the following:

<SYSTEM32>\ping.exe 127.0.0.1 -n 5 > NUL del "%PROGRAM_FILES%\Internet Explorer\iexplore.exe"
%WINDIR%\explorer.exe

Modifies file system :

Creates the following files:

Sets the 'hidden' attribute to the following files:

<Drive name for removable media>:\RECYCLER\S-1-5-21-1482476501-3352491937-682996330-1013\msexplorer.exe
<Drive name for removable media>:\autorun.inf

Deletes the following files:

Miscellaneous:

Searches for the following windows: