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Win32.HLLW.Autoruner.58942

Added to the Dr.Web virus database: 2011-09-15

Virus description added:

Technical Information

To ensure autorun and distribution:
Modifies the following registry keys:
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] '76E9C9D7' = '%APPDATA%\76E9C9D7\76E9C9D7.EXE'
Creates the following files on removable media:
  • <Drive name for removable media>:\autorun.inf
  • <Drive name for removable media>:\BSBRNE\GCZNLS.EXE
Malicious functions:
Creates and executes the following:
  • %APPDATA%\76E9C9D7\76E9C9D7.EXE 
Injects code into
the following system processes:
  • <SYSTEM32>\ctfmon.exe
a large number of user processes.
Modifies file system :
Creates the following files:
  • %TEMP%\POS1.tmp.BAT
  • %APPDATA%\76E9C9D7\76E9C9D7.EXE
Deletes itself.
Network activity:
UDP:
  • DNS ASK pi##cast.ru
Miscellaneous:
Searches for the following windows:
  • ClassName: 'Indicator' WindowName: ''
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