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Win32.HLLW.Autoruner3.2250

Added to the Dr.Web virus database: 2020-04-25

Virus description added:

Technical Information

To ensure autorun and distribution
Modifies the following registry keys
  • [<HKCU>\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\RUN\] 'sysdiag64.exe' = 'C:\\windows\\sysdiag64.exe'
  • [<HKLM>\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\] 'MicrosoftNAPC' = 'C:\\windows\\sysdiag64.exe'
  • [<HKLM>\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\policies\Explorer\Run\] 'MicrosoftCorp' = 'C:\\windows\\sysdiag64.exe'
Creates the following files on removable media
  • <Drive name for removable media>:\gay\straight\desktop.ini
  • <Drive name for removable media>:\gay\straight\sysdiag64.exe
  • <Drive name for removable media>:\autorun.inf
Modifies file system
Creates the following files
  • %WINDIR%\sysdiag64.exe
Sets the 'hidden' attribute to the following files
  • %WINDIR%\sysdiag64.exe
  • <Drive name for removable media>:\gay\straight\sysdiag64.exe
Network activity
UDP
  • DNS ASK ni###tatz.net
  • DNS ASK ir#.#c3n.info
Miscellaneous
Searches for the following windows
  • ClassName: '#32770' WindowName: ''
  • ClassName: 'RegEdit_RegEdit' WindowName: ''
  • ClassName: 'SysListView32' WindowName: ''
Creates and executes the following
  • '%WINDIR%\sysdiag64.exe'
  • '%WINDIR%\sysdiag64.exe' ' (with hidden window)
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