What is a Nulled Script and Cracked a Program and how they differ

[XSLTel]

Thank you Mr Happy, Thank you very much

[uLtRaTRim]

Thank you for this information Happy. It is good to know all these things.

[dermechove]

thanks for the post Happy but I might add some things.
Not all the cracked softwares are infected for sure.but binding a virus/torjan to a .exe don't always need experience in cracking(disassembling/debugging) some "skilled" hackers developed softwares to do this for you.
As for viruses that are picked up from a website it's not exactly that the virus is in the PHP code.Most likely (and the most used technique) there is a Java script in that page that does that.you know that websites have the right to write in your computers throw your browser.with some JS tricks it can "download" viruses to your computer (without you noticing) and executing them.Thus you get infected.
Also shells (r57/c99... that's what I remember now) are considered by some anitivirus companies as Viruses so they call them viruses/torjan.
There is no standars in naming computer threats so every company name threats as she wants and so some php malicious script can be named viruses by some AV companies.I think that's how some users got confused.

[Daniel]

Thank you for another wonderful read. I adore you.