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Win32.HLLW.Autoruner1.46412

Added to the Dr.Web virus database: 2013-07-16

Virus description added:

Technical Information

To ensure autorun and distribution:
Modifies the following registry keys:
  • [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'Windows Firewall' = '%APPDATA%\galaxy.exe'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'Windows Firewall' = '%APPDATA%\galaxy.exe'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] '' = '%APPDATA%\SII7s.exe'
  • [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] '' = '%APPDATA%\SII7s.exe'
Creates the following files on removable media:
  • <Drive name for removable media>:\autorun.inf
  • <Drive name for removable media>:\TTHDHGC\DFG-2352-66235-2352322-634621321-6662355\364855.exe
  • <Drive name for removable media>:\TTHDHGC\DFG-2352-66235-2352322-634621321-6662355\Desktop.ini
Malicious functions:
Creates and executes the following:
  • '%APPDATA%\galaxy.exe'
  • '%APPDATA%\xSwarm.exe'
  • '<Current directory>\xSwarm.exe'
  • '%APPDATA%\xSwarm.exe' (downloaded from the Internet)
  • '<Current directory>\xSwarm.exe' (downloaded from the Internet)
Executes the following:
  • '<SYSTEM32>\cmd.exe' /c ""%TEMP%\IzblScO.bat" "
Modifies file system :
Creates the following files:
  • %APPDATA%\galaxy.exe
  • %HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\U98D4X8H\xSwarm[1].exe
  • %APPDATA%\xSwarm.exe
  • <Current directory>\xSwarm.exe
  • %TEMP%\IzblScO.bat
  • %APPDATA%\SII7s.exe
  • %HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\KHMHGZ4F\xSwarm[1].exe
Sets the 'hidden' attribute to the following files:
  • <Drive name for removable media>:\TTHDHGC\DFG-2352-66235-2352322-634621321-6662355\364855.exe
  • %APPDATA%\galaxy.exe
  • %APPDATA%\SII7s.exe
Deletes the following files:
  • %HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\KHMHGZ4F\xSwarm[1].exe
Network activity:
Connects to:
  • 'localhost':1038
  • 'so####n.gttt.net':6667
  • 'localhost':1035
  • 'www.dp###ose.com':80
TCP:
HTTP GET requests:
  • www.dp###ose.com/wpanel/xSwarm.exe
UDP:
  • DNS ASK so####n.gttt.net
  • DNS ASK www.dp###ose.com
Miscellaneous:
Searches for the following windows:
  • ClassName: 'Indicator' WindowName: '(null)'