Technical Information
To ensure autorun and distribution
Modifies the following registry keys
- [HKLM\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{37F02D7A-7FE8-B944-DE2C-FE9FCBCE9286}] 'stubpath' = '<SYSTEM32>\vmtoolsd.exe'
Malicious functions
Searches for windows to
detect analytical utilities:
- ClassName: 'FileMonClass', WindowName: ''
- ClassName: 'OLLYDBG', WindowName: ''
Modifies file system
Creates the following files
- %WINDIR%\syswow64\vmtoolsd.exe
Deletes itself.
Network activity
Connects to
- 'is###jeju.com':80
TCP
HTTP GET requests
- http://www.is###jeju.com/rss/rss7.txt
UDP
- DNS ASK is###jeju.com
Miscellaneous
Searches for the following windows
- ClassName: '18467-41' WindowName: ''
Creates and executes the following
- '%WINDIR%\syswow64\reg.exe' delete "HKEY_CURRENT_USER\Software\Microsoft\Active Setup\Installed Components\{37F02D7A-7FE8-B944-DE2C-FE9FCBCE9286}" /f' (with hidden window)
- '%WINDIR%\syswow64\cmd.exe' /c del <Full path to file> > nul' (with hidden window)
Executes the following
- '%WINDIR%\syswow64\reg.exe' delete "HKEY_CURRENT_USER\Software\Microsoft\Active Setup\Installed Components\{37F02D7A-7FE8-B944-DE2C-FE9FCBCE9286}" /f
- '%WINDIR%\syswow64\cmd.exe' /c del <Full path to file> > nul
