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Profil

Win32.HLLW.Autoruner1.56918

Added to the Dr.Web virus database: 2013-09-22

Virus description added:

Technical Information

To ensure autorun and distribution:
Modifies the following registry keys:
  • [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer\Run] 'FrmWork' = '%WINDIR%\Framework Services.exe'
Creates the following files on removable media:
  • <Drive name for removable media>:\update.exe
  • <Drive name for removable media>:\autorun.inf
Malicious functions:
To complicate detection of its presence in the operating system,
forces the system hide from view:
  • hidden files
Executes the following:
  • '<SYSTEM32>\net.exe' /c net stop SharedAccess
  • '<SYSTEM32>\net1.exe' /pid=3964
  • '<SYSTEM32>\net1.exe' /pid=3868
  • '<SYSTEM32>\net1.exe' /pid=3028
  • '<SYSTEM32>\net1.exe' /pid=3712
  • '<SYSTEM32>\net1.exe' /pid=3072
  • '<SYSTEM32>\net1.exe' /pid=2880
  • '<SYSTEM32>\net1.exe' /pid=3572
  • '<SYSTEM32>\net1.exe' /c net stop SharedAccess
  • '<SYSTEM32>\net1.exe' stop SharedAccess
  • '<SYSTEM32>\net.exe' stop SharedAccess
  • '<SYSTEM32>\net1.exe' /pid=2924
  • '<SYSTEM32>\net1.exe' /pid=3564
  • '<SYSTEM32>\net1.exe' /pid=3224
  • '<SYSTEM32>\net1.exe' /pid=3180
Injects code into
the following system processes:
  • <SYSTEM32>\net.exe
  • <SYSTEM32>\cmd.exe
  • <SYSTEM32>\net1.exe
Modifies file system :
Creates the following files:
  • C:\autorun.inf
  • C:\update.exe
  • %WINDIR%\Framework Services.exe
  • %PROGRAM_FILES%\Internet Explorer\MS Office.exe
Sets the 'hidden' attribute to the following files:
  • C:\update.exe
  • <Drive name for removable media>:\autorun.inf
  • <Drive name for removable media>:\update.exe
  • %WINDIR%\Framework Services.exe
  • %PROGRAM_FILES%\Internet Explorer\MS Office.exe
  • C:\autorun.inf
Network activity:
Connects to:
  • 'su####98.no-ip.org':890
UDP:
  • DNS ASK su####98.no-ip.org