Play games and win money : Offline Javascript Obfuscator

Friday, August 3, 2018

Offline Javascript Obfuscator

Hmm, back from busy life, i search for Offline JS Obfuscator (javanese people said: niku gara2 kuota mung dibatesi jam) with the same method as www.javascriptobfuscator.com but found nothing, so i learn how they obfuscate the JS and try to make it myself, i did it but NOT COMPLETED at all, i just make it to obfuscate string-only and maybe you still face some error here, this is alpha version, because i just take a hour to code this.

function() { var a="ABC"; var b="DEF"; alert(a+b); }

you have to select string quotes type (" or ) in order to use this (i said this is alpha version, no automatic decide), for example if u frequently use var a=ABC u should use %string% option.

this is the source for reference and i hope someone will continue this before me, im busy about task u know!! :))

Save as "*.HTA" extension

<html> 	<head> 	<title>JS String Obfuscator</title> 		<script type=text/javascript> 			// -- THIS IS JUST TO SET THE HTA WINDOW SIZE -- // 			sW = screen.width; 			sH = screen.height; 			window.moveTo(sW, sH); 			window.resizeTo(854, 374); 			// -- THIS IS JUST TO SET THE HTA WINDOW SIZE -- // 		</script> 		<!-- just HTA app settings --> 		<hta:application 			applicationName="JSObfuscator" 			border="thin" 			id="050100101001001111" 			innerBorder="no" 			maximizeButton="no" 			scroll="no" 			singleInstance="yes" 			version="0.5"/> 		<!-- just HTA app settings --> 		<meta http-equiv=MSThemeCompatible content=yes/> 	</head> 	<body topMargin=0 leftMargin=0> 		<table width=854px height=374px border=1 borderColor=#808080 cellSpacing=0 cellPadding=0> 			<tr height=344px> 				<td align=center> 					<textarea id=inp cols=50 rows=20 wrap="off">function() { 	var a="ABC"; 	var b="DEF"; 	alert(a+b); }</textarea> 				</td> 				<td align=center> 					<textarea id=out cols=50 rows=21 readOnly=true></textarea> 				</td> 			</tr> 			<tr> 				<td align=center> 					<input type=button onClick=obfuscateJS(); style=width:100%;height=100%; value=Obfuscate JS/> 				</td> 				<td align=center> 					<select id=sel style=width:100%;height=100%;> 						<option>--[select string quotes type]--</option> 						<option>" %string% "</option> 						<option> %string% </option> 					</select> 				</td> 			</tr> 		</table> 	</body> 	<script type=text/javascript> 		// -- THIS IS JUST TO SET THE HTA WINDOW SIZE -- // 		iW = (854 + (854 - document.body.offsetWidth)); 		iH = (374 + (374 - document.body.offsetHeight)); 		window.resizeTo(iW, iH); 		window.moveTo(((sW - iW) / 2), ((sH - iH) / 2)); 		// -- THIS IS JUST TO SET THE HTA WINDOW SIZE -- // 		sel.selectedIndex = 1; 		function obfuscateJS() { 			if (sel.selectedIndex == 0) { //set the quotes 				alert("select string quotes!"); 				return; 			} else if (sel.selectedIndex == 1) { 				qts = "; 			} else { 				qts = ""; 			} 			var txt = inp.value; 			var tmp = txt; 			var vrb = "_0xf41d=[" //create an array for obfuscate 			var arr = new Array(); //new unlimited array 			var nmb = 0; //this is array number in obfscated JS 			while (tmp.search(qts) != -1) { //if found any quotes 				if (sel.selectedIndex == 1) { 					arr[nmb] = tmp.match(/"([^"]+)"/)[1]; //get string inside "" 				} else { 					arr[nmb] = tmp.match(/([^]+)/)[1]; //get string inside 				} 				for (var i = 0; i <= 1; i++) { //replace only 2 quotes 					tmp = tmp.replace(qts, ); 				} 				txt = txt.replace(qts + arr[nmb] + qts, _0xf41d[ + nmb + "]"); //replace string as array call _0xf41d[ArrNum] 				nmb += 1; 			} 			for (var i = 0; i < arr.length; i++) { 				vrb += " + toHex(arr[i]) + ",; //convert a char to hex 			} 			vrb = vrb.substr(0, vrb.length - 1) + "];"; 			out.value = (vrb + txt).replace(/(?: | | )/g, ;).replace(/(?: | | )/g, ).replace(_0xf41d=];, ); //replace enter, tab, and incomplete array _0xf41d=]; 			out.value = out.value.replace(/;;|{;|};/g, function(x){return x.substring(0, 1);}); //replace {; }; ;; wtih that first substring(0,1) 		} 		function toHex(str) { //convert to hex with xHEX return 			var hex = ""; 			for (var i = 0; i < str.length; i++) { 			hex += x + str.charCodeAt(i).toString(16); 			} 			return hex; 		} 	</script> </html>

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