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Win32.HLLW.Autoruner2.36123

Added to the Dr.Web virus database: 2018-04-14

Virus description added:

Technical Information

To ensure autorun and distribution:
Modifies the following registry keys:
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'xwmuy' = '%HOMEPATH%\xwmuy.exe /J'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'xwmuy' = '%HOMEPATH%\xwmuy.exe /w'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'xwmuy' = '%HOMEPATH%\xwmuy.exe /B'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'xwmuy' = '%HOMEPATH%\xwmuy.exe /M'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'xwmuy' = '%HOMEPATH%\xwmuy.exe /X'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'xwmuy' = '%HOMEPATH%\xwmuy.exe /p'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'xwmuy' = '%HOMEPATH%\xwmuy.exe /h'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'xwmuy' = '%HOMEPATH%\xwmuy.exe /I'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'xwmuy' = '%HOMEPATH%\xwmuy.exe /n'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'xwmuy' = '%HOMEPATH%\xwmuy.exe /d'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'xwmuy' = '%HOMEPATH%\xwmuy.exe /F'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'xwmuy' = '%HOMEPATH%\xwmuy.exe /a'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'xwmuy' = '%HOMEPATH%\xwmuy.exe /e'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'xwmuy' = '%HOMEPATH%\xwmuy.exe /y'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'xwmuy' = '%HOMEPATH%\xwmuy.exe /z'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'xwmuy' = '%HOMEPATH%\xwmuy.exe /l'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'xwmuy' = '%HOMEPATH%\xwmuy.exe /s'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'xwmuy' = '%HOMEPATH%\xwmuy.exe /r'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'xwmuy' = '%HOMEPATH%\xwmuy.exe /U'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'xwmuy' = '%HOMEPATH%\xwmuy.exe /k'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'xwmuy' = '%HOMEPATH%\xwmuy.exe /o'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'xwmuy' = '%HOMEPATH%\xwmuy.exe /g'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'xwmuy' = '%HOMEPATH%\xwmuy.exe /C'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'xwmuy' = '%HOMEPATH%\xwmuy.exe /v'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'xwmuy' = '%HOMEPATH%\xwmuy.exe /T'
Creates the following files on removable media:
  • <Drive name for removable media>:\autorun.inf
  • <Drive name for removable media>:\CuQs.ico
  • <Drive name for removable media>:\xwmuy.exe
  • <Drive name for removable media>:\xwmuyx.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%\xwmuy.exe
Sets the 'hidden' attribute to the following files:
  • %HOMEPATH%\xwmuy.exe
  • <Drive name for removable media>:\autorun.inf
  • <Drive name for removable media>:\CuQs.ico
  • <Drive name for removable media>:\xwmuy.exe
  • <Drive name for removable media>:\xwmuyx.exe
Network activity:
Connects to:
  • 'ns#.##ayer1532.com':8000
UDP:
  • DNS ASK ns#.##ayer1532.com
Miscellaneous:
Creates and executes the following:
  • '%HOMEPATH%\xwmuy.exe'
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