Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'up' = 'wscript.exe //B "%TEMP%\up.vbs"'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'up' = 'wscript.exe //B "%TEMP%\up.vbs"'
Creates or modifies the following files:
- %HOMEPATH%\Start Menu\Programs\Startup\up.vbs
Creates the following files on removable media:
- <Drive name for removable media>:\up.vbs
Malicious functions:
Executes the following:
- '<SYSTEM32>\wscript.exe' //B "%TEMP%\up.vbs"
- '<SYSTEM32>\wscript.exe' "%WINDIR%\up.vbs"
Modifies file system :
Creates the following files:
- %TEMP%\up.vbs
- %WINDIR%\up.vbs
Sets the 'hidden' attribute to the following files:
- <Drive name for removable media>:\up.vbs
Network activity:
Connects to:
- 'sh####z.zapto.org':3333
- 'localhost':1035
UDP:
- DNS ASK sh####z.zapto.org
Miscellaneous:
Searches for the following windows:
- ClassName: 'Indicator' WindowName: '(null)'
- ClassName: 'Shell_TrayWnd' WindowName: '(null)'
- ClassName: 'EDIT' WindowName: '(null)'
