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Win32.HLLW.Autoruner3.6997

Added to the Dr.Web virus database: 2023-02-03

Virus description added:

Technical Information

To ensure autorun and distribution
Modifies the following registry keys
  • [<HKLM>\Software\Microsoft\Windows NT\CurrentVersion\Winlogon] 'Shell' = 'explorer.exe, <DRIVERS>\svchost.exe'
  • [<HKLM>\Software\Microsoft\Windows NT\CurrentVersion\Winlogon] 'UIHost' = 'logonui.exe, <SYSTEM32>\dllcache\recycled.exe'
Creates the following files on removable media
  • <Drive name for removable media>:\recycler\s-1-5-21-8749679017-0950430147-468708784-3200\recycler.scr
  • <Drive name for removable media>:\autorun.inf
  • <Drive name for removable media>:\recycler\s-1-5-21-8749679017-0950430147-468708784-3200\desktop.ini
Modifies file system
Creates the following files
  • C:\recycler\s-1-5-21-8749679017-0950430147-468708784-3200\recycler.scr
  • C:\autorun.inf
  • C:\recycler\s-1-5-21-8749679017-0950430147-468708784-3200\desktop.ini
  • D:\recycler\s-1-5-21-8749679017-0950430147-468708784-3200\recycler.scr
  • D:\autorun.inf
  • D:\recycler\s-1-5-21-8749679017-0950430147-468708784-3200\desktop.ini
  • <SYSTEM32>\net.vbs
  • <SYSTEM32>\launch.vbs
Sets the 'hidden' attribute to the following files
  • C:\autorun.inf
  • C:\recycler\s-1-5-21-8749679017-0950430147-468708784-3200\recycler.scr
  • C:\recycler\s-1-5-21-8749679017-0950430147-468708784-3200\desktop.ini
  • D:\autorun.inf
  • D:\recycler\s-1-5-21-8749679017-0950430147-468708784-3200\recycler.scr
  • D:\recycler\s-1-5-21-8749679017-0950430147-468708784-3200\desktop.ini
  • <Drive name for removable media>:\autorun.inf
  • <Drive name for removable media>:\recycler\s-1-5-21-8749679017-0950430147-468708784-3200\recycler.scr
  • <Drive name for removable media>:\recycler\s-1-5-21-8749679017-0950430147-468708784-3200\desktop.ini

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