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Profil

Win32.HLLW.Autoruner1.54752

Added to the Dr.Web virus database: 2013-08-26

Virus description added:

Technical Information

To ensure autorun and distribution:
Modifies the following registry keys:
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] '8f382ef7d86852f42b57475efbc940fd' = '"%TEMP%\backtrack.exe" ..'
  • [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] '8f382ef7d86852f42b57475efbc940fd' = '"%TEMP%\backtrack.exe" ..'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'AMIR' = 'wscript.exe //B "%TEMP%\AMIR.VBS"'
  • [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'AMIR' = 'wscript.exe //B "%TEMP%\AMIR.VBS"'
Creates or modifies the following files:
  • %HOMEPATH%\Start Menu\Programs\Startup\8f382ef7d86852f42b57475efbc940fd.exe
  • %HOMEPATH%\Start Menu\Programs\Startup\AMIR.VBS
Creates the following files on removable media:
  • <Drive name for removable media>:\AMIR.VBS.lnk
  • <Drive name for removable media>:\8f382ef7d86852f42b57475efbc940fd.lnk
  • <Drive name for removable media>:\AMIR.VBS
  • <Drive name for removable media>:\8f382ef7d86852f42b57475efbc940fd.exe
Malicious functions:
To bypass firewall, removes or modifies the following registry keys:
  • [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '%TEMP%\backtrack.exe' = '%TEMP%\backtrack.exe:*:Enabled:backtrack.exe'
Creates and executes the following:
  • '%TEMP%\backtrack.exe'
  • '%TEMP%\SERVER.EXE'
  • '%TEMP%\972.exe'
Executes the following:
  • '<SYSTEM32>\netsh.exe' firewall add allowedprogram "%TEMP%\backtrack.exe" "backtrack.exe" ENABLE
  • '<SYSTEM32>\wscript.exe' "%TEMP%\AMIR.VBS"
Modifies file system :
Creates the following files:
  • %TEMP%\SERVER.EXE
  • %TEMP%\backtrack.exe
  • %TEMP%\972.exe
  • %TEMP%\AMIR.VBS
Sets the 'hidden' attribute to the following files:
  • <Drive name for removable media>:\8f382ef7d86852f42b57475efbc940fd.exe
  • <Drive name for removable media>:\AMIR.VBS
Network activity:
Connects to:
  • '<Private IP address>':8899
  • 'localhost':1037
  • '<Private IP address>':1177
Miscellaneous:
Searches for the following windows:
  • ClassName: 'Indicator' WindowName: '(null)'