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Win32.HLLW.Autoruner2.64530

Added to the Dr.Web virus database: 2019-10-08

Virus description added:

Technical Information

To ensure autorun and distribution
Modifies the following registry keys
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'njw0rm.exe' = '"%TEMP%\njw0rm.exe"'
  • [<HKLM>\Software\Microsoft\Windows\CurrentVersion\Run] 'njw0rm.exe' = '"%TEMP%\njw0rm.exe"'
Creates or modifies the following files
  • %HOMEPATH%\start menu\programs\startup\njw0rm.exe
Creates the following files on removable media
  • <Drive name for removable media>:\njw0rm.exe
  • <Drive name for removable media>:\my pictures.lnk
  • <Drive name for removable media>:\correct.avi.lnk
  • <Drive name for removable media>:\delete.avi.lnk
  • <Drive name for removable media>:\000814251_video_01.avi.lnk
  • <Drive name for removable media>:\split.avi.lnk
  • <Drive name for removable media>:\toolbar.bmp.lnk
  • <Drive name for removable media>:\coffee.bmp.lnk
  • <Drive name for removable media>:\dialmap.bmp.lnk
  • <Drive name for removable media>:\dashborder_192.bmp.lnk
  • <Drive name for removable media>:\dial.bmp.lnk
Malicious functions
To bypass firewall, removes or modifies the following registry keys
  • [<HKLM>\SYSTEM\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '%TEMP%\njw0rm.exe' = '%TEMP%\njw0rm.exe:*:Enabled:njw0rm.exe'
Executes the following
  • '<SYSTEM32>\netsh.exe' firewall add allowedprogram "%TEMP%\njw0rm.exe" "njw0rm.exe" ENABLE
Modifies file system
Creates the following files
  • %TEMP%\njw0rm.exe.ini
  • %TEMP%\njw0rm.exe
Sets the 'hidden' attribute to the following files
  • <Drive name for removable media>:\njw0rm.exe
Deletes itself.
Network activity
Connects to
  • '41.##3.49.149':1888
Miscellaneous
Creates and executes the following
  • '%TEMP%\njw0rm.exe' "del" <Full path to file>
  • '<SYSTEM32>\netsh.exe' firewall add allowedprogram "%TEMP%\njw0rm.exe" "njw0rm.exe" ENABLE' (with hidden window)

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