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Win32.HLLW.Autoruner.55901

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

Virus description added:

Technical Information

To ensure autorun and distribution:
Modifies the following registry keys:
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'audiodriver' = '%HOMEPATH%\driver.exe'
Creates the following files on removable media:
  • <Drive name for removable media>:\autorun.inf
  • <Drive name for removable media>:\facebook.exe
Malicious functions:
Creates and executes the following:
  • %HOMEPATH%\driver.exe 
Modifies file system :
Creates the following files:
  • <Current directory>\replyfile.txt
  • %HOMEPATH%\userdata.ntg
  • %HOMEPATH%\driver.exe
Sets the 'hidden' attribute to the following files:
  • <Drive name for removable media>:\autorun.inf
  • %HOMEPATH%\driver.exe
  • %HOMEPATH%\userdata.ntg
Deletes the following files:
  • <Drive name for removable media>:\autorun.inf
Network activity:
Connects to:
  • 'dr#####pdates.110mb.com':80
TCP:
HTTP GET requests:
  • dr#####pdates.110mb.com/update.php?u=#####################################
UDP:
  • DNS ASK dr#####pdates.110mb.com
Miscellaneous:
Searches for the following windows:
  • ClassName: 'Indicator' WindowName: ''
  • ClassName: 'AutoHotkey' WindowName: '%HOMEPATH%\driver.exe'
  • ClassName: 'AutoHotkey' WindowName: '<Full path to virus>'
  • ClassName: '#32771' WindowName: ''