Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'ctfnom' = '%APPDATA%\Dir\ctfnom.exe'
Creates the following files on removable media:
- <Drive name for removable media>:\autorun.inf
- <Drive name for removable media>:\Mirc.exe
Malicious functions:
Creates and executes the following:
- %APPDATA%\Dir\ctfnom.exe
- %TEMP%\lostdoorfevicold.exe
- %TEMP%\fear.exe
Executes the following:
- <SYSTEM32>\net1.exe stop sharedaccess
- <SYSTEM32>\net.exe stop sharedaccess
- <SYSTEM32>\rundll32.exe <SYSTEM32>\shimgvw.dll,ImageView_Fullscreen "%TEMP%\172965-brotherhoodheader.jpg"
Modifies file system :
Creates the following files:
- %TEMP%\172965-brotherhoodheader.jpg
- %APPDATA%\Dir\ctfnom.exe
- %APPDATA%\Dir\Dated.dat
- %TEMP%\fear.exe
- %TEMP%\lostdoorfevicold.exe
- %TEMP%\lostdoor 1.exe
Sets the 'hidden' attribute to the following files:
- %APPDATA%\Dir\ctfnom.exe
Miscellaneous:
Searches for the following windows:
- ClassName: 'Indicator' WindowName: ''
- ClassName: 'Shell_TrayWnd' WindowName: ''
- ClassName: 'ShImgVw:CPreviewWnd' WindowName: ''
