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Win32.HLLW.Autoruner2.22092

Added to the Dr.Web virus database: 2015-09-23

Virus description added:

Technical Information

To ensure autorun and distribution:
Modifies the following registry keys:
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'HKCU' = ''
  • [<HKLM>\SOFTWARE\Microsoft\Active Setup\Installed Components\{BXKXXO7V-OQ71-68B3-Y1AT-UXL46XEG6073}] 'StubPath' = '<SYSTEM32>\WinDir\svchost.exe Restart'
  • [<HKLM>\SOFTWARE\Microsoft\Active Setup\Installed Components\{BXKXXO7V-OQ71-68B3-Y1AT-UXL46XEG6073}] 'StubPath' = ''
  • [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer\Run] 'Policies' = ''
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run] 'Policies' = ''
  • [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'HKLM' = ''
Malicious functions:
Creates and executes the following:
  • '<SYSTEM32>\WinDir\svchost.exe'
Injects code into
the following system processes:
  • %WINDIR%\Explorer.EXE
Modifies file system :
Creates the following files:
  • %TEMP%\%USERNAME%7
  • %TEMP%\%USERNAME%8
  • %APPDATA%\%USERNAME%log.dat
  • <SYSTEM32>\WinDir\svchost.exe
  • %TEMP%\%USERNAME%2.txt
Sets the 'hidden' attribute to the following files:
  • %APPDATA%\%USERNAME%log.dat
  • <SYSTEM32>\WinDir\svchost.exe
Deletes the following files:
  • %TEMP%\%USERNAME%7
  • %TEMP%\%USERNAME%8
  • %TEMP%\%USERNAME%2.txt
Network activity:
Connects to:
  • 'ih####.no-ip.biz':1337
UDP:
  • DNS ASK ih####.no-ip.biz
Miscellaneous:
Searches for the following windows:
  • ClassName: 'Shell_TrayWnd' WindowName: ''
  • ClassName: 'Indicator' WindowName: ''