I'll take you at face value and assume you're really just trying to learn. And I'll assume you're not trying to learn for nefarious reasons, although that's not totally clear at this point.

If so, I'll let you know that this just won't work. Look at the password rules for Skype. See the minimum length. Look at how many characters can comprise a password - that is, what symbols on your keyboard. And keep in mind that some services even allow non-English characters in their passwords - so there could potentially be symbols in a non-English alphabet to consider.

If you do the math to find out how many possible passwords there are, at a minimum assuming the minimal password length, you will get a very, very large number.

Now go try to manually log on to Skype. Purposely enter an incorrect password. After a few you'll probably get a Captcha to solve. This script can't handle that case. Even if it could, keep going and the account will get locked out. You're dead in the water at that point.

So if you take the number of tries it took to get locked out, you'll see that it's is very small compared to the number of possible passwords. So small that the chances of this technique working against a competently designed authentication system are effectively zero.

If you want to learn, try starting with Bruce Schneier. You probably won't pick up too much practical from his blog, but there's a lot of good security related theory and info there, both on the posts and the comments. There are some good practical courses online, many cheap or free.

In reply to Re^3: Execute Progra,, doesnt work on Strawberry. It opens and closes inmediatly after by eighty-one
in thread Execute Progra,, doesnt work on Strawberry. It opens and closes inmediatly after by Blackone95

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.