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Win32.HLLW.Autoruner1.26576

Added to the Dr.Web virus database: 2012-09-23

Virus description added:

Technical Information

To ensure autorun and distribution:
Modifies the following registry keys:
  • [<HKLM>\SOFTWARE\Microsoft\Command Processor] 'AutoRun' = '%WINDIR%\system\LRMYO.EXE'
  • [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'QGVESI' = '<SYSTEM32>\QGVESI.EXE'
  • [<HKCU>\Software\Microsoft\Windows NT\CurrentVersion\Windows] 'load' = '<SYSTEM32>\QGVESI.EXE'
Creates the following files on removable media:
  • <Drive name for removable media>:\YNJTMJ.EXE
  • <Drive name for removable media>:\autorun.inf
  • <Drive name for removable media>:\QEVWV.EXE
Malicious functions:
To complicate detection of its presence in the operating system,
blocks execution of the following system utilities:
  • Windows Task Manager (Taskmgr)
  • Registry Editor (RegEdit)
Executes the following:
  • <SYSTEM32>\rundll32.exe url,FileProtocolHandler
Modifies settings of Windows Explorer:
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer] 'NoFolderOptions' = '00000001'
Modifies file system :
Creates the following files:
  • %WINDIR%\system\LRMYO.EXE
  • <SYSTEM32>\QGVESI.EXE
Sets the 'hidden' attribute to the following files:
  • <Drive name for removable media>:\autorun.inf
  • <Drive name for removable media>:\YNJTMJ.EXE
  • <SYSTEM32>\QGVESI.EXE
  • %WINDIR%\system\LRMYO.EXE
Miscellaneous:
Searches for the following windows:
  • ClassName: '' WindowName: ''
  • ClassName: 'button' WindowName: ''
  • ClassName: 'Shell_traywnd' WindowName: ''