Win32.HLLW.Autoruner1.29024
Added to the Dr.Web virus database:
2012-10-31
Virus description added:
2012-10-31
Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'dhtdll32' = '<SYSTEM32>\<Virus name>.exe'
Creates the following files on removable media:
- <Drive name for removable media>:\Autorun.inf
- <Drive name for removable media>:\RECYCLER\syslog.ini
- <Drive name for removable media>:\MyPictures.exe
- <Drive name for removable media>:\<Virus name>.exe
- <Drive name for removable media>:\XXL.exe
Malicious functions:
To complicate detection of its presence in the operating system,
forces the system hide from view:
Executes the following:
- <SYSTEM32>\attrib.exe +a +s +h \Autorun.inf
- <SYSTEM32>\attrib.exe +a +s +h \<Virus name>.exe
- <SYSTEM32>\attrib.exe +a +s +h z: [\\.host\Shared Folders\vm_shara]\Autorun.inf
- <SYSTEM32>\attrib.exe +a +s +h z: [\\.host\Shared Folders\vm_shara]\<Virus name>.exe
- <SYSTEM32>\attrib.exe +a +s +h /s /d e:\RECYCLER
- <SYSTEM32>\attrib.exe +a +s +h /s /d z: [\\.host\Shared Folders\vm_shara]\RECYCLER
- <SYSTEM32>\attrib.exe +a +s +h /s /d a:\RECYCLER
- <SYSTEM32>\attrib.exe +a +s +h /s /d <Drive name for removable media>:\RECYCLER
- <SYSTEM32>\attrib.exe +a +s +h e:\<Virus name>.exe
- <SYSTEM32>\attrib.exe +a +s +h a:\<Virus name>.exe
- <SYSTEM32>\attrib.exe +a +s +h c:\Autorun.inf
- %WINDIR%\regedit.exe /s C:\X.reg
- <SYSTEM32>\attrib.exe +a +s +h a:\Autorun.inf
- <SYSTEM32>\attrib.exe +a +s +h <Drive name for removable media>:\<Virus name>.exe
- <SYSTEM32>\attrib.exe +a +s +h e:\Autorun.inf
- <SYSTEM32>\attrib.exe +a +s +h c:\<Virus name>.exe
- <SYSTEM32>\attrib.exe +a +s +h <Drive name for removable media>:\Autorun.inf
Modifies file system :
Creates the following files:
- C:\MyPictures.exe
- C:\XXL.exe
- C:\RECYCLER\syslog.ini
- C:\Autorun.inf
- <SYSTEM32>\<Virus name>.exe
- C:\<Virus name>.exe
- C:\X.reg
Sets the 'hidden' attribute to the following files:
- <Drive name for removable media>:\Autorun.inf
- <Drive name for removable media>:\<Virus name>.exe
- C:\Autorun.inf
- C:\<Virus name>.exe
Deletes the following files:
Miscellaneous:
Searches for the following windows:
- ClassName: 'Shell_TrayWnd' WindowName: ''
- ClassName: 'RegEdit_RegEdit' WindowName: ''
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