Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon] 'Userinit' = '<SYSTEM32>\userinit.exe,%APPDATA%\PICACHU_LOCK.EXE'
Creates the following files on removable media:
- <Drive name for removable media>:\PICACHU.EXE
- <Drive name for removable media>:\hdH2ELi7.PIF
- <Drive name for removable media>:\AUTORUN.INF
Malicious functions:
Creates and executes the following:
- %APPDATA%\PICACHU.EXE
- %APPDATA%\PICACHU_LOCK.EXE PICACHU
Modifies file system :
Creates the following files:
- %WINDIR%\d4s.hst
- %APPDATA%\PICACHU.EXE
- %APPDATA%\PICACHU_LOCK.EXE
Sets the 'hidden' attribute to the following files:
- <Drive name for removable media>:\hdH2ELi7.PIF
- <Drive name for removable media>:\AUTORUN.INF
Miscellaneous:
Searches for the following windows:
- ClassName: 'Shell_TrayWnd' WindowName: ''
