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Win32.HLLW.Autoruner2.36188

Added to the Dr.Web virus database: 2018-04-15

Virus description added:

Technical Information

To ensure autorun and distribution:
Modifies the following registry keys:
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'duizil' = '%HOMEPATH%\duizil.exe /f'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'duizil' = '%HOMEPATH%\duizil.exe /i'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'duizil' = '%HOMEPATH%\duizil.exe /h'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'duizil' = '%HOMEPATH%\duizil.exe /C'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'duizil' = '%HOMEPATH%\duizil.exe /o'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'duizil' = '%HOMEPATH%\duizil.exe /X'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'duizil' = '%HOMEPATH%\duizil.exe /t'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'duizil' = '%HOMEPATH%\duizil.exe /q'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'duizil' = '%HOMEPATH%\duizil.exe /B'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'duizil' = '%HOMEPATH%\duizil.exe /A'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'duizil' = '%HOMEPATH%\duizil.exe /J'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'duizil' = '%HOMEPATH%\duizil.exe /E'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'duizil' = '%HOMEPATH%\duizil.exe /Y'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'duizil' = '%HOMEPATH%\duizil.exe /L'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'duizil' = '%HOMEPATH%\duizil.exe /S'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'duizil' = '%HOMEPATH%\duizil.exe /V'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'duizil' = '%HOMEPATH%\duizil.exe /g'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'duizil' = '%HOMEPATH%\duizil.exe /N'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'duizil' = '%HOMEPATH%\duizil.exe /W'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'duizil' = '%HOMEPATH%\duizil.exe /P'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'duizil' = '%HOMEPATH%\duizil.exe /r'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'duizil' = '%HOMEPATH%\duizil.exe /Z'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'duizil' = '%HOMEPATH%\duizil.exe /U'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'duizil' = '%HOMEPATH%\duizil.exe /d'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'duizil' = '%HOMEPATH%\duizil.exe /K'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'duizil' = '%HOMEPATH%\duizil.exe /m'
Creates the following files on removable media:
  • <Drive name for removable media>:\autorun.inf
  • <Drive name for removable media>:\nps.ico
  • <Drive name for removable media>:\duizil.exe
  • <Drive name for removable media>:\duizilx.exe
  • <Drive name for removable media>:\New Folder.lnk
  • <Drive name for removable media>:\Passwords.lnk
  • <Drive name for removable media>:\Documents.lnk
  • <Drive name for removable media>:\Pictures.lnk
  • <Drive name for removable media>:\Music.lnk
  • <Drive name for removable media>:\Video.lnk
Malicious functions:
To complicate detection of its presence in the operating system,
forces the system hide from view:
  • hidden files
Modifies file system:
Creates the following files:
  • %HOMEPATH%\duizil.exe
Sets the 'hidden' attribute to the following files:
  • %HOMEPATH%\duizil.exe
  • <Drive name for removable media>:\autorun.inf
  • <Drive name for removable media>:\nps.ico
  • <Drive name for removable media>:\duizil.exe
  • <Drive name for removable media>:\duizilx.exe
Network activity:
Connects to:
  • 'ns#.##ayer1532.com':8000
UDP:
  • DNS ASK ns#.##ayer1532.com
Miscellaneous:
Creates and executes the following:
  • '%HOMEPATH%\duizil.exe'
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