Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'Systeme' = '%WINDIR%\sys.exe'
Malicious functions:
Executes the following:
- '<SYSTEM32>\rundll32.exe' <SYSTEM32>\shimgvw.dll,ImageView_Fullscreen %WINDIR%\sys.jpg
Modifies file system :
Creates the following files:
- %HOMEPATH%\Recent\sys.lnk
- %HOMEPATH%\Recent\WINDOWS.lnk
- %WINDIR%\sys.exe
- %WINDIR%\sys.jpg
Sets the 'hidden' attribute to the following files:
- %WINDIR%\sys.jpg
- %WINDIR%\sys.exe
Miscellaneous:
Searches for the following windows:
- ClassName: 'Shell_TrayWnd' WindowName: '(null)'
- ClassName: 'ShImgVw:CPreviewWnd' WindowName: '(null)'