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Win32.HLLW.Autoruner.52904

Added to the Dr.Web virus database: 2012-03-28

Virus description added:

Technical Information

To ensure autorun and distribution:
Modifies the following registry keys:
  • [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'cunt.exe' = '"%APPDATA%\cunt.exe"'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'SKCJERmeGREBR' = '"%APPDATA%\cunt.exe"'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'Run32.dll' = '%APPDATA%\Run32.exe'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'cunt.exe' = '"%APPDATA%\cunt.exe"'
Creates the following files on removable media:
  • <Drive name for removable media>:\autorun.inf
  • <Drive name for removable media>:\{%USERNAME%-SKCJERmeGREBR}\cunt.exe
Malicious functions:
Creates and executes the following:
  • %APPDATA%\Run32.exe
Executes the following:
  • <SYSTEM32>\reg.exe ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /v "Run32.dll" /t REG_SZ /d "%APPDATA%\Run32.exe" /f
  • <SYSTEM32>\cmd.exe /c ""%TEMP%\JgEpS.bat" "
Injects code into
the following system processes:
  • %WINDIR%\Explorer.EXE
Modifies file system :
Creates the following files:
  • %APPDATA%\cunt.exe
  • %APPDATA%\Run32.exe
  • %TEMP%\JgEpS.bat
Sets the 'hidden' attribute to the following files:
  • <Drive name for removable media>:\autorun.inf
  • <Drive name for removable media>:\{%USERNAME%-SKCJERmeGREBR}\cunt.exe
  • %APPDATA%\cunt.exe
Deletes the following files:
  • %APPDATA%\Run32.exe
Network activity:
Connects to:
  • 'xd###.dyndns.org':9872
UDP:
  • DNS ASK xd###.dyndns.org
  • '<Private IP address>':1035
Miscellaneous:
Searches for the following windows:
  • ClassName: 'Indicator' WindowName: ''