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Win32.HLLW.SpyNet.437

Added to the Dr.Web virus database: 2016-10-23

Virus description added:

Technical Information

To ensure autorun and distribution:
Modifies the following registry keys:
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'Intel' = '<SYSTEM32>\system\svchost.exe'
  • [<HKLM>\SOFTWARE\Microsoft\Active Setup\Installed Components\{PH4E212D-53NG-NYLP-C4VT-L1J671K44N2M}] 'StubPath' = '<SYSTEM32>\system\svchost.exe Restart'
  • [<HKLM>\SOFTWARE\Microsoft\Active Setup\Installed Components\{PH4E212D-53NG-NYLP-C4VT-L1J671K44N2M}] 'StubPath' = '<SYSTEM32>\system\svchost.exe'
  • [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer\Run] 'Policies' = '<SYSTEM32>\system\svchost.exe'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run] 'Policies' = '<SYSTEM32>\system\svchost.exe'
  • [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'Realtek' = '<SYSTEM32>\system\svchost.exe'
Malicious functions:
Creates and executes the following:
  • '<SYSTEM32>\system\svchost.exe'
Executes the following:
  • '<SYSTEM32>\system\svchost.exe'
  • '%WINDIR%\explorer.exe'
Injects code into
the following system processes:
  • %WINDIR%\explorer.exe
Modifies file system:
Creates the following files:
  • %APPDATA%\%USERNAME%-wchelper.dll
  • %TEMP%\%USERNAME%7
  • %TEMP%\%USERNAME%8
  • <SYSTEM32>\system\svchost.exe
  • %TEMP%\%USERNAME%2.txt
  • %APPDATA%\88E6680F\ak.tmp
Sets the 'hidden' attribute to the following files:
  • %APPDATA%\%USERNAME%-wchelper.dll
  • <SYSTEM32>\system\svchost.exe
Deletes the following files:
  • %TEMP%\%USERNAME%7
  • %TEMP%\%USERNAME%8
  • %TEMP%\%USERNAME%2.txt
Deletes itself.
Network activity:
Connects to:
  • 'kd#.#o-ip.biz':81
  • 'kd#.#o-ip.biz':82
  • 'kd#.#o-ip.biz':999
  • 'kd#.#yq-see.com':81
  • 'kd#.#yq-see.com':82
  • 'kd#.#yq-see.com':999
UDP:
  • DNS ASK kd#.#o-ip.biz
  • DNS ASK kd#.#yq-see.com
Miscellaneous:
Searches for the following windows:
  • ClassName: 'Shell_TrayWnd' WindowName: ''
  • ClassName: 'MS_WINHELP' WindowName: ''
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