Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'WinTrySys' = '<SYSTEM32>\userjnit.exe'
Creates the following files on removable media:
- <Drive name for removable media>:\Skin.exe
Malicious functions:
Creates and executes the following:
- '<SYSTEM32>\Winainit.dll' dll
Modifies file system :
Creates the following files:
- <SYSTEM32>\Winainit.dll
- <SYSTEM32>\userjnit.exe
- <SYSTEM32>\wnia.jpg
Sets the 'hidden' attribute to the following files:
- <Drive name for removable media>:\Skin.exe
- <SYSTEM32>\Winainit.dll
- <SYSTEM32>\userjnit.exe
Deletes the following files:
- <SYSTEM32>\wnia.jpg
Miscellaneous:
Searches for the following windows:
- ClassName: 'Indicator' WindowName: '(null)'
