Some time ago while visiting some web site in Opera 12.12 following Windows 7 UAC prompt appeared on screen:

C:\Windows\SysWOW64\cmd.exe /c at 13:29:00 /every:T,M,Th,F,W,S,Su wmic.exe nicconfig where "IPEnabled=true" call SetDNSServerSearchOrder ("", "")

Obviously, I declined it.

The method by which phishers attempted to get my data is pretty clear, but how they did manage to execute the command from browser?

1 Answer 1


Phishers may use Javascript like this:

var wsh = new ActiveXObject('WScript.Shell');
command = 'cmd /k ' + 'what ever ...';

It works only if you turn off the security features in your browser which will need to use ActiveX.

  • 2
    Oops... Never knew that Opera is able to work with ActiveX. Thought that it works in IE only.
    – Paul
    Commented Sep 21, 2014 at 6:26
  • What? ActiveX in Opera? As I understand this Opera help page, this isn't the case.
    – nixda
    Commented Sep 24, 2014 at 21:23

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