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Win32.HLLW.Autohit.16038

Added to the Dr.Web virus database: 2016-10-28

Virus description added:

Technical Information

To ensure autorun and distribution:
Creates or modifies the following files:
  • %HOMEPATH%\Start Menu\Programs\Startup\Microsoft Update.lnk
Malicious functions:
Executes the following:
  • '<SYSTEM32>\rundll32.exe' <SYSTEM32>\shell32.dll,OpenAs_RunDLL %TEMP%\TCALAC.pdf
Modifies file system:
Creates the following files:
  • %TEMP%\aut2.tmp
  • %TEMP%\TCALAC.pdf
  • %TEMP%\aut1.tmp
  • %TEMP%\ttpjtwv
Deletes the following files:
  • %TEMP%\aut2.tmp
  • %TEMP%\ttpjtwv
  • %TEMP%\aut1.tmp
Network activity:
Connects to:
  • 'iy###p.ddns.net':1337
UDP:
  • DNS ASK iy###p.ddns.net
Miscellaneous:
Searches for the following windows:
  • ClassName: 'Shell_TrayWnd' WindowName: ''
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