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Win32.HLLW.Autoruner2.40834
Added to the Dr.Web virus database:
2018-06-27
Virus description added:
2018-06-27
Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
[<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon] 'Shell' = 'explorer.exe, wscript.exe //B "%TEMP%\System\w32viewer_indexation.vbs"'
[<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon] 'Userinit' = '<SYSTEM32>\userinit.exe,wscript.exe //B "%TEMP%\System\w32viewer_indexation.vbs"'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'Skype' = '"%ProgramFiles% (x86)\Skype\Phone\Skype.exe" /minimized /regrun, wscript.exe //B "%TEMP%\\archive_index\w32view_index.lnk"'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'Skype' = '"%ProgramFiles%\Skype\Phone\Skype.exe" /minimized /regrun, wscript.exe //B "%TEMP%\\archive_index\w32view_index.lnk"'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'w32viewer_indexation' = '"%TEMP%\archive_index\w32view_index.lnk"'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'w32view_indexation' = '"%TEMP%\archive_index\w32view_indexation.lnk"'
[<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'w32view_indexation' = '"%TEMP%\archive_index\w32view_indexation.lnk"'
[<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'w32viewer_indexation' = '"%TEMP%\archive_index\w32view_index.lnk"'
Creates or modifies the following files:
%HOMEPATH%\Start Menu\Programs\Startup\w32view_indexation.lnk
%HOMEPATH%\Start Menu\Programs\Startup\w32viewer_indexation.lnk
Creates the following files on removable media:
<Drive name for removable media>:\DCIM.lnk
<Drive name for removable media>:\Games.lnk
<Drive name for removable media>:\Movies.lnk
<Drive name for removable media>:\Pictures.lnk
<Drive name for removable media>:\Videos.lnk
Malicious functions:
Executes the following:
'<SYSTEM32>\taskkill.exe' /F /IM bavtray.exe
Modifies file system:
Creates the following files:
%ProgramFiles%\games\games\ccsetup542.exe
%ProgramFiles%\games\games\wincloud.VBS
%ProgramFiles%\games\games\Uninstall.exe
%ProgramFiles%\games\games\Uninstall.ini
%TEMP%\archive_index\w32view_index.lnk
%TEMP%\openbydrive\w32view_indexation.vbe
%TEMP%\System\w32viewer_indexation.vbs
%TEMP%\openbydrive_index\w32viewer_indexation.vbe
%TEMP%\archive_index\w32view_indexation.lnk
Sets the 'hidden' attribute to the following files:
%ProgramFiles%\games\games\wincloud.VBS
Network activity:
Connects to:
'localhost':1037
'do#####re.dyndns.org':5052
UDP:
DNS ASK do#####re.dyndns.org
Miscellaneous:
Searches for the following windows:
ClassName: '' WindowName: ''
Creates and executes the following:
'<SYSTEM32>\wscript.exe' "%ProgramFiles%\games\games\wincloud.VBS"
Executes the following:
'<SYSTEM32>\schtasks.exe' /create /sc ONLOGON /RL HIGHEST /tn w32view_indexation.vbe /tr "%TEMP%\System\w32viewer_indexation.vbs"
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