Win32.HLLW.Autoruner.50745

Added to the Dr.Web virus database: 2011-05-30

Virus description added: 2011-12-24

To ensure autorun and distribution:

Modifies the following registry keys:

[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'MSWUpdate' = '"%APPDATA%\lsass.exe"'
[<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon] 'Shell' = 'Explorer.exe "%APPDATA%\lsass.exe"'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'javaupdatre' = '%APPDATA%\javaapp.exe'

Malicious functions:

Creates and executes the following:

Executes the following:

<SYSTEM32>\reg.exe ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /v "javaupdatre" /t REG_SZ /d "%APPDATA%\javaapp.exe" /f
<SYSTEM32>\cmd.exe /c ""%TEMP%\DSoNX.bat" "

Modifies file system :

Creates the following files:

%APPDATA%\gLcTjcVW
%APPDATA%\lsass.exe
%HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\KHMHGZ4F\locate_my_ip[1]
%TEMP%\DSoNX.bat
%APPDATA%\javaapp.exe

Sets the 'hidden' attribute to the following files:

Deletes the following files:

Network activity:

Connects to:

TCP:

HTTP GET requests:

UDP:

Miscellaneous:

Searches for the following windows: