Actually, that isn't going to work against all attacks.
In fact, it doesn't even work against the code I posted
yesterday in the thread about virusses. That is because
my virus installs itself in a BEGIN block right below the
first line (it assumes the first line is the she-bang line).
Hence, it gets executed (and does its damage)
before your check aborts the program.
(And yeah, putting the BEGIN all the way at the top was
done by design)
The only thing you gained is that you get alarmed as soon
as damage is done - but then it's too late already.
-- Abigail
-
Are you posting in the right place? Check out Where do I post X? to know for sure.
-
Posts may use any of the Perl Monks Approved HTML tags. Currently these include the following:
<code> <a> <b> <big>
<blockquote> <br /> <dd>
<dl> <dt> <em> <font>
<h1> <h2> <h3> <h4>
<h5> <h6> <hr /> <i>
<li> <nbsp> <ol> <p>
<small> <strike> <strong>
<sub> <sup> <table>
<td> <th> <tr> <tt>
<u> <ul>
-
Snippets of code should be wrapped in
<code> tags not
<pre> tags. In fact, <pre>
tags should generally be avoided. If they must
be used, extreme care should be
taken to ensure that their contents do not
have long lines (<70 chars), in order to prevent
horizontal scrolling (and possible janitor
intervention).
-
Want more info? How to link
or How to display code and escape characters
are good places to start.
|
