Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'Windows' = '%TEMP%\Windows.exe'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'MicrosoftUppage.exe' = '%WINDIR%\Temp\MicrosoftUppage.exe.exe'
Creates the following files on removable media:
- <Drive name for removable media>:\autorun.inf
- <Drive name for removable media>:\black.scr
Malicious functions:
Creates and executes the following:
- C:\mcrupdate.exe
- C:\mcrupdate.exe (downloaded from the Internet)
Modifies file system :
Creates the following files:
- C:\black.scr
- C:\autorun.inf
- C:\mcrupdate.exe
- %WINDIR%\Temp\MicrosoftUppage.exe.exe
Sets the 'hidden' attribute to the following files:
- <Drive name for removable media>:\autorun.inf
- <Drive name for removable media>:\black.scr
- C:\autorun.inf
- C:\black.scr
Network activity:
Connects to:
- 'co#####hosting.x10.mx':80
- 'wp#d':80
TCP:
HTTP GET requests:
- co#####hosting.x10.mx/Nudes.exe
- wp#d/wpad.dat
UDP:
- DNS ASK co#####hosting.x10.mx
- DNS ASK wp#d
- '<Private IP address>':1035
Miscellaneous:
Searches for the following windows:
- ClassName: 'Shell_TrayWnd' WindowName: ''
- ClassName: 'Indicator' WindowName: ''
