Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'update' = 'wscript.exe //B "%TEMP%\update.vbs"'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'update' = 'wscript.exe //B "%TEMP%\update.vbs"'
Creates or modifies the following files:
- %HOMEPATH%\Start Menu\Programs\Startup\update.vbs
Creates the following files on removable media:
- <Drive name for removable media>:\update.vbs
Malicious functions:
Executes the following:
- '<SYSTEM32>\wscript.exe' //B "%TEMP%\update.vbs"
- '<SYSTEM32>\wscript.exe' "%APPDATA%\update.vbs"
- '<SYSTEM32>\notepad.exe' %APPDATA%\1.txt
Modifies file system :
Creates the following files:
- %APPDATA%\update.vbs
- %TEMP%\update.vbs
- %TEMP%\aut2.tmp
- %TEMP%\aut1.tmp
- %APPDATA%\1.txt
Sets the 'hidden' attribute to the following files:
- <Drive name for removable media>:\update.vbs
Deletes the following files:
- %TEMP%\aut2.tmp
- %TEMP%\aut1.tmp
Network activity:
Connects to:
- 'mo####14.no-ip.biz':999
- 'localhost':1036
UDP:
- DNS ASK mo####14.no-ip.biz
Miscellaneous:
Searches for the following windows:
- ClassName: 'Indicator' WindowName: '(null)'
- ClassName: 'Shell_TrayWnd' WindowName: '(null)'
