Win32.HLLW.Autoruner.55886

Added to the Dr.Web virus database: 2011-08-09

Virus description added: 2011-08-09

To ensure autorun and distribution:

Modifies the following registry keys:

[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'WindowsUpdaterzz' = '%APPDATA%\zzbrenkzz.exe'
[<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'WindowsUpdaterzz' = '%APPDATA%\zzbrenkzz.exe'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'ExploreWindows' = '%APPDATA%\WindowsExplorer\explorer.exe'

Creates the following files on removable media:

<Drive name for removable media>:\autorun.inf
<Drive name for removable media>:\JHDGYUFRTYQWWEFGBHFHJBGFRJGHRJKGKIOHKIHJ\DFG-1198-78912-8798523-567356432-5783512\jghhggteh.exe
<Drive name for removable media>:\JHDGYUFRTYQWWEFGBHFHJBGFRJGHRJKGKIOHKIHJ\DFG-1198-78912-8798523-567356432-5783512\Desktop.ini

Malicious functions:

Creates and executes the following:

Executes the following:

<SYSTEM32>\reg.exe ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /v "ExploreWindows" /t REG_SZ /d "%APPDATA%\WindowsExplorer\explorer.exe" /f
<SYSTEM32>\cmd.exe /c """%TEMP%\kHXdG.bat"" "

Modifies file system :

Creates the following files:

Sets the 'hidden' attribute to the following files:

<Drive name for removable media>:\JHDGYUFRTYQWWEFGBHFHJBGFRJGHRJKGKIOHKIHJ\DFG-1198-78912-8798523-567356432-5783512\jghhggteh.exe
%APPDATA%\zzbrenkzz.exe
%APPDATA%\WindowsExplorer\explorer.exe

Deletes the following files:

Network activity:

Connects to:

UDP:

Miscellaneous:

Searches for the following windows: