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Win32.HLLW.Autoruner1.26353

Added to the Dr.Web virus database: 2012-09-19

Virus description added:

Technical Information

To ensure autorun and distribution:
Modifies the following registry keys:
  • [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] '<Virus name>.exe' = '<SYSTEM32>\cacheForDriver\<Virus name>.exe'
Creates the following files on removable media:
  • <Drive name for removable media>:\JRVDOC.lnk
  • <Drive name for removable media>:\IRVDOC.lnk
  • <Drive name for removable media>:\HRVDOC.lnk
  • <Drive name for removable media>:\Recycler\DXDRVNET.EXE
  • <Drive name for removable media>:\LRVDOC.lnk
  • <Drive name for removable media>:\KRVDOC.lnk
  • <Drive name for removable media>:\DRVDOC.lnk
  • <Drive name for removable media>:\lpk.dll
  • <Drive name for removable media>:\AutoRun.inf
  • <Drive name for removable media>:\GRVDOC.lnk
  • <Drive name for removable media>:\FRVDOC.lnk
  • <Drive name for removable media>:\ERVDOC.lnk
Malicious functions:
To complicate detection of its presence in the operating system,
forces the system hide from view:
  • hidden files
Creates and executes the following:
  • C:\Documents and Settings\DXDRVDOC.EXE
  • <SYSTEM32>\cacheForDriver\<Virus name>.exe
Modifies file system :
Creates the following files:
  • %ALLUSERSPROFILE%\DXDRVNET.EXE
  • <SYSTEM32>\cacheForDriver\DXDRVNET.EXE
  • %TEMP%\avp.exe
  • <SYSTEM32>\cacheForDriver\<Virus name>.exe
  • C:\Documents and Settings\DXDRVDOC.EXE
  • %TEMP%\avpset.exe
Sets the 'hidden' attribute to the following files:
  • <Drive name for removable media>:\KRVDOC.lnk
  • <Drive name for removable media>:\JRVDOC.lnk
  • <Drive name for removable media>:\IRVDOC.lnk
  • <Drive name for removable media>:\LRVDOC.lnk
  • <SYSTEM32>\cacheForDriver\DXDRVNET.EXE
  • %ALLUSERSPROFILE%\DXDRVNET.EXE
  • <Drive name for removable media>:\Recycler\DXDRVNET.EXE
  • <Drive name for removable media>:\HRVDOC.lnk
  • <Drive name for removable media>:\lpk.dll
  • <Drive name for removable media>:\AutoRun.inf
  • <SYSTEM32>\cacheForDriver\<Virus name>.exe
  • <Drive name for removable media>:\DRVDOC.lnk
  • <Drive name for removable media>:\GRVDOC.lnk
  • <Drive name for removable media>:\FRVDOC.lnk
  • <Drive name for removable media>:\ERVDOC.lnk
Deletes the following files:
  • <Drive name for removable media>:\AutoRun.inf
Miscellaneous:
Searches for the following windows:
  • ClassName: 'Shell_TrayWnd' WindowName: ''