Klez is a computer worm that propagates via e-mail. It first appeared in October 2001. A number of variants of the worm exist.
Klez infects Microsoft Windows systems, exploiting a vulnerability in Internet Explorer's Trident layout engine, used by both Microsoft Outlook and Outlook Express to render HTML mail.
The e-mail through which the worm spreads always includes a text portion and one or more attachments. The text portion consists of either an HTML internal frame tag which causes buggy e-mail clients to automatically execute the worm, or a few lines of text that attempt to induce the recipient to execute the worm by opening the attachment (sometimes by claiming that the attachment is a patch from Microsoft; sometimes by claiming that the attachment is an antidote for the Klez worm). The first attachment is always the worm, whose internals vary.
Once the worm is executed, either automatically by the buggy HTML engine or manually by a user, it searches for addresses to send itself to. When it sends itself out, it may attach a file from the infected machine, leading to possible privacy breaches.
...Let's go...
I've been lovin' u for here long knowin' I was never clear
But I have no fear today cause I'm gonna say
What I gotta say, I don't wanna play the role
Bustin' through the door, I'm gonna take ur heart fo' sure, oh
Put ur hands up in the air, it's a stick up
I'm gon take ur heart from here, now let's fix up
Put ur hands in the air, in the air, in the air
I'm gonna play my cards from here
And take this gamble sure
My words are gonna fumble, but this beat is mighty humble
Ain't goin nowhere, sure I'm scared but my life's a dare
And baby u just got so much flare, we'll be the perfect pair
I'm gonna share my mind with u, u've been blinded
My life's been blue, I'm takin u, I'm takin u
Put ur hands up in the air, it's a stick up
I'm gon take ur heart from here, now let's fix up
Put ur hands in the air, in the air, in the air
Put ur hands up in the air, it's a stick up
I'm gon take ur heart from here, now let's fix up
Put ur hands in the air, in the air, in the air
In the air, in the air, in the air
When I first met u, I wanted to wet u
Not a gun but a different content, sexual
U tried to run, I still get u
Steel metal not needed, a whole 'nother meaning
Don't want ur gold, want ur soul
Control ur heartbeatin, cause when I start squeezin that muscle
That's the trigger, than I got u nigga, in ya
Chopper spinners, got ur bodyguards wit cha
Diamond dog tag chain swingin, I had them thangs ringin
This is a robbery, no one's gettin free
Till that man, he comes with me
Put ur hands up in the air, it's a stick up
I'm gon take ur heart from here, now let's fix up