Library
My library

+ Add to library

Contact us
24/7 Tech support | Rules regarding submitting

Send a message

Your tickets

Profile

Win32.HLLW.Autoruner.57196

Added to the Dr.Web virus database: 2011-08-28

Virus description added:

Technical Information

To ensure autorun and distribution:
Creates the following files on removable media:
  • <Drive name for removable media>:\AUTORUN.INF
  • <Drive name for removable media>:\msdll.exe
Malicious functions:
Executes the following:
  • <SYSTEM32>\reg.exe add "HKCR\Directory\shell\LEOPEN" /ve /d Ouvrir /F
  • <SYSTEM32>\reg.exe add "HKCR\Directory\shell\LEOPEN\command" /ve /d "%WINDIR%\ms1rep0.exe ""%1""" /F
  • <SYSTEM32>\reg.exe add "HKEY_CLASSES_ROOT\Directory\shell" /ve /d LEOPEN /F
  • <SYSTEM32>\reg.exe add "HKCU\Software\Microsoft\Windows\CurrentVersion\policies\Explorer\Run" /v msdll /t reg_sz /d "%WINDIR%\ms1dll0.exe" /f
  • <SYSTEM32>\reg.exe add "HKCU\Software\Microsoft\Windows\CurrentVersion\policies\Explorer\Run" /v mssky /t reg_sz /d "www.dz####.sitew.com" /f
Modifies file system :
Creates the following files:
  • %WINDIR%\ms1rep0.exe
  • C:\msdll.exe
  • C:\AUTORUN.INF
  • %WINDIR%\ms1dll0.exe
  • <LS_APPDATA>\MS1REP0.OK
  • <LS_APPDATA>\AUTORUN.OK
  • %TEMP%\a19006.bat
Sets the 'hidden' attribute to the following files:
  • %TEMP%\a19006.bat
Deletes the following files:
  • <LS_APPDATA>\AUTORUN.OK
  • <LS_APPDATA>\MS1REP0.OK
  • %TEMP%\a19006.bat