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Win32.HLLW.Dorifel.1

Added to the Dr.Web virus database: 2014-06-13

Virus description added:

Technical Information

To ensure autorun and distribution:
Modifies the following registry keys:
  • [<HKCU>\Software\Microsoft\Windows NT\CurrentVersion\Windows] 'Load' = '%APPDATA%\Roaming\02B488\039180~1.LNK'
Malicious functions:
Creates and executes the following:
  • '<Current directory>\01BCA8'
  • '%APPDATA%\Roaming\02B488\039180.exe' -launcher
Executes the following:
  • '<SYSTEM32>\rundll32.exe' dfdts.dll,DfdGetDefaultPolicyAndSMART
Modifies file system :
Creates the following files:
  • <Current directory>\01BCA8
  • %APPDATA%\Roaming\02B488\RCX95E8.tmp
  • %APPDATA%\Roaming\02B488\039180.exe
Deletes the following files:
  • <Current directory>\01BCA8
Moves the following files:
  • from %APPDATA%\Roaming\02B488\RCX95E8.tmp to %APPDATA%\Roaming\02B488\039180.exe
Miscellaneous:
Searches for the following windows:
  • ClassName: 'dfvfv' WindowName: 'fvfvfvv'