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Win32.HLLM.MyDoom.1422

Added to the Dr.Web virus database: 2012-08-15

Virus description added:

Technical Information

To ensure autorun and distribution:
Modifies the following registry keys:
  • [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] '\lsass.exe' = '%ALLUSERSPROFILE%\Start Menu\Programs\Startup\lsass.exe'
  • [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\RunServices] 'WINDOWS SYSTEM' = 'lsass.exe'
  • [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'WINDOWS SYSTEM' = 'lsass.exe'
Creates or modifies the following files:
  • %ALLUSERSPROFILE%\Start Menu\Programs\Startup\lsass.exe
Malicious functions:
Creates and executes the following:
  • %ALLUSERSPROFILE%\Start Menu\Programs\Startup\lsass.exe
Terminates or attempts to terminate
the following user processes:
  • mpftray.exe
  • NAVAPW32.EXE
  • MCAGENT.EXE
  • fsav32.exe
  • GUARD.EXE
  • zapro.exe
  • ZONEALARM.EXE
  • smc.exe
  • nod32.exe
  • outpost.exe
  • AVP32.EXE
  • AVPCC.EXE
  • AVP.EXE
  • AVGCC32.EXE
  • AVGCTRL.EXE
  • Drwebupw.exe
  • fsav.exe
  • ccapp.exe
  • AVPM.EXE
  • AVSYNMGR.EXE
Network activity:
UDP:
  • DNS ASK ir#.##eenode.net