Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'Yewyvnypuqdabehj.exe' = '"%APPDATA%\Yewyvnypuqdabehj.exe"'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'Yewyvnypuqdabehj.exe' = '"%APPDATA%\Yewyvnypuqdabehj.exe"'
Creates the following files on removable media:
- <Drive name for removable media>:\autorun.inf
- <Drive name for removable media>:\hYDguxl\hYDguxl.exe
- <Drive name for removable media>:\hYDguxl\Desktop.ini
Malicious functions:
Creates and executes the following:
- %APPDATA%\Yewyvnypuqdabehj.exe
Injects code into
the following system processes:
- <SYSTEM32>\cscript.exe
a large number of user processes.
Modifies file system :
Creates the following files:
- %APPDATA%\Yewyvnypuqdabehj.exe
Sets the 'hidden' attribute to the following files:
- <Drive name for removable media>:\hYDguxl\hYDguxl.exe
- %APPDATA%\Yewyvnypuqdabehj.exe
Network activity:
Connects to:
- 'we####backon.tel':5500
- 'bl##k.kz':5500
UDP:
- DNS ASK we####backon.tel
- DNS ASK bl##k.kz
Miscellaneous:
Searches for the following windows:
- ClassName: 'Indicator' WindowName: ''