Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'WinUpdat' = 'wscript.exe //B "%TEMP%\WinUpdat.vbs"'
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'WinUpdat' = 'wscript.exe //B "%TEMP%\WinUpdat.vbs"'
Creates or modifies the following files:
- %HOMEPATH%\Start Menu\Programs\Startup\WinUpdat.vbs
Creates the following files on removable media:
- <Drive name for removable media>:\WinUpdat.vbs
Modifies file system:
Creates the following files:
- %TEMP%\aut1.tmp
- %TEMP%\WinUpdat.exe
- %TEMP%\aut2.tmp
- %TEMP%\WinUpdat.vbs
- %TEMP%\nsz4.tmp\System.dll
- %TEMP%\nsz4.tmp\modern-wizard.bmp
Sets the 'hidden' attribute to the following files:
- <Drive name for removable media>:\WinUpdat.vbs
Deletes the following files:
- %TEMP%\aut1.tmp
- %TEMP%\aut2.tmp
Network activity:
Connects to:
- 'localhost':1037
- 'f1####5f.hopto.org':1170
UDP:
- DNS ASK f1####5f.hopto.org
Miscellaneous:
Searches for the following windows:
- ClassName: '#32770' WindowName: ''
Creates and executes the following:
- '%TEMP%\WinUpdat.exe'
- '<SYSTEM32>\wscript.exe' "%TEMP%\WinUpdat.vbs"
