Login or Register :: Home :: Search :: Your Account :: Forums :: Waraxe Advisories :: Tools :: November 8, 2026 Menu Home Logout Discussions Forums Members List IRC chat Tools Base64 coder MD5 hash CRC32 checksum ROT13 coder SHA-1 hash URL-decoder Sql Char Encoder Affiliates y3dips ITsec Md5 Cracker User Manuals AlbumNow Content Content Sections FAQ Top Info Feedback Recommend Us Search Journal Your Account User Info Welcome, Anonymous Nickname Password (Register) Membership: Latest: MichaelSnaRe New Today: 0 New Yesterday: 0 Overall: 9144 People Online: Visitors: 249 Members: 0 Total: 249 Full disclosure SEC Consult SA-20261104-0 :: Improper device certificate validation enables AiTM attacks in Siemens SICAM Toolbox II device communication Apache Struts2 Tiles Plugin <=7.4.0 and >=6.3.0 Preparer Cache Vulnerabilities unixODBC <=2.3.14 Rude Truncation via Narrowing Conversion Causes Out-of-Bounds `memcpy` unixODBC <=2.3.14 Multiple Races unixODBC <=2.3.14 Multiple Heap Buffer Overflows, Underflows, and Over-Reads Apache Struts2 Core Arbitrary Code Execution via OGNL SandboxEscape Apache Struts2 Core TokenHelper Token Cryptographic Timing Side-Channel Apache Struts2 Spring Plugin Uses a Previously Closed Resource Apache Struts2 Core Integer Overflow Apache Struts2 Core Cross-Origin Protection Exemption Miskeyed to a Deployment-Wide Path Apache Struts2 REST Plugin Fails to Properly Parse ChunkedRequests Apache Struts2 REST Plugin Untrimmed `Accept` Header Tokens Break Content Negation Fallback Apache Struts2 JSON Plugin Insecure Deserialisation -- Object Deserialisation Element-Count Limit Bypass [0day-rubbish] NETGEAR RAX120 V1.2.5.18 authenticated SOAP InstallApp OS command injection to root-configured web-stack execution (6.8 Medium; conditionally 7.2 High with management exposure) [0day-rubbish] Raritan PX3 PDU G4 firmware 4.3.14 command injection in the ping and traceroute diagnostics through an inverted hostname-validation return check (8.8) IT Security and Insecurity Portal www.waraxe.us Forum Index -> Javascript -> unescape decryption View previous topic :: View next topic unescape decryption Posted: Mon Nov 16, 2009 11:00 am devinmason7711 Beginner Joined: Nov 16, 2009 Posts: 2 hey guys I know how to decode unescape, but this is different... <!--Advanced Unescape Start--> <html> <head><SCRIPT type="text/javascript">eval(unescape("function%20ew_dc%28s%29%7Bvar%20d%3D%27%27%2Ck%3D0%2Ca%3Dnew%20Array%28%29%2Cr%3Bfor%28i%3D0%3Bi%3Cs.length%3Bi++%29%7Bc%3Ds.charCodeAt%28i%29%3Bif%28c%3C128%29c%5E%3D5%3Bd+%3DString.fromCharCode%28c%29%3Bif%28%28i+1%29%2599%3D%3D0%29%7Ba%5Bk++%5D%3Dd%3Bd%3D%27%27%3B%7D%7Dr%3Da.join%28%27%27%29+d%3Bdocument.write%28r%29%3B%7D"));</SCRIPT> <SCRIPT type="text/javascript">ew_dc(unescape("9%24%28%28%60kfw%7Cuqg%60blk%28%28%3B%08%0F9lkupq%25q%7Cu%608%27mlaa%60k%27%25kdh%608%27pv%60wkdh%60%27%25sdip%608%27agdahlk%27%25mlaa%60k8%27qwp%60%27%25*%3B%08%0F9lkupq%25q%7Cu%608%27mlaa%60k%27%25kdh%608%27udvvrjwa%27%25sdip%608%27moa%3D6ii7%27%25mlaa%60k8%27qwp%60%27%25*%3B%08%0F9%24%28%28%60kfw%7Cuq%60ka%28%28%3B"));</SCRIPT> </HEAD> </html></BODY> </HTML><!--Advanced Unescape /End--> Anybody have any ideas on how I can go about decoding this? Any explanations so I can learn? Posted: Mon Nov 16, 2009 4:28 pm waraxe Site admin Joined: May 11, 2004 Posts: 2407 Location: Estonia, Tartu First you have this piece of malformed html: Code: <!--Advanced Unescape Start--> <html> <head><SCRIPT type="text/javascript">eval(unescape("function%20ew_dc%28s%29%7Bvar%20d%3D%27%27%2Ck%3D0%2Ca%3Dnew%20Array%28%29%2Cr%3Bfor%28i%3D0%3Bi%3Cs.length%3Bi++%29%7Bc%3Ds.charCodeAt%28i%29%3Bif%28c%3C128%29c%5E%3D5%3Bd+%3DString.fromCharCode%28c%29%3Bif%28%28i+1%29%2599%3D%3D0%29%7Ba%5Bk++%5D%3Dd%3Bd%3D%27%27%3B%7D%7Dr%3Da.join%28%27%27%29+d%3Bdocument.write%28r%29%3B%7D"));</SCRIPT> <SCRIPT type="text/javascript">ew_dc(unescape("9%24%28%28%60kfw%7Cuqg%60blk%28%28%3B%08%0F9lkupq%25q%7Cu%608%27mlaa%60k%27%25kdh%608%27pv%60wkdh%60%27%25sdip%608%27agdahlk%27%25mlaa%60k8%27qwp%60%27%25*%3B%08%0F9lkupq%25q%7Cu%608%27mlaa%60k%27%25kdh%608%27udvvrjwa%27%25sdip%608%27moa%3D6ii7%27%25mlaa%60k8%27qwp%60%27%25*%3B%08%0F9%24%28%28%60kfw%7Cuq%60ka%28%28%3B"));</SCRIPT> </HEAD> </html></BODY> </HTML><!--Advanced Unescape /End--> Let's start with unescaping of the decrypting routine. For this you can use urldecoder: http://urldecoder.waraxe.us/ Just put this in: Code: function%20ew_dc%28s%29%7Bvar%20d%3D%27%27%2Ck%3D0%2Ca%3Dnew%20Array%28%29%2Cr%3Bfor%28i%3D0%3Bi%3Cs.length%3Bi++%29%7Bc%3Ds.charCodeAt%28i%29%3Bif%28c%3C128%29c%5E%3D5%3Bd+%3DString.fromCharCode%28c%29%3Bif%28%28i+1%29%2599%3D%3D0%29%7Ba%5Bk++%5D%3Dd%3Bd%3D%27%27%3B%7D%7Dr%3Da.join%28%27%27%29+d%3Bdocument.write%28r%29%3B%7D and you will get this: Code: function ew_dc(s){var d='',k=0,a=new Array(),r;for(i=0;i<s.length;i ){c=s.charCodeAt(i);if(c<128)c^=5;d =String.fromCharCode(c);if((i 1)%99==0){a[k ]=d;d='';}}r=a.join('') d;document.write(r);} Now modify it, so that instead of "document.write" it will just show popup message with text: Code: function ew_dc(s){var d='',k=0,a=new Array(),r;for(i=0;i<s.length;i ){c=s.charCodeAt(i);if(c<128)c^=5;d =String.fromCharCode(c);if((i 1)%99==0){a[k ]=d;d='';}}r=a.join('') d;alert(r);} And finally put together test html: Code: <html> <head> <script type="text/javascript"> function ew_dc(s){var d='',k=0,a=new Array(),r;for(i=0;i<s.length;i++){c=s.charCodeAt(i);if(c<128)c^=5;d+=String.fromCharCode(c);if((i+1)%99==0){a[k++]=d;d='';}}r=a.join('')+d;alert(r);} ew_dc(unescape("9%24%28%28%60kfw%7Cuqg%60blk%28%28%3B%08%0F9lkupq%25q%7Cu%608%27mlaa%60k%27%25kdh%608%27pv%60wkdh%60%27%25sdip%608%27agdahlk%27%25mlaa%60k8%27qwp%60%27%25*%3B%08%0F9lkupq%25q%7Cu%608%27mlaa%60k%27%25kdh%608%27udvvrjwa%27%25sdip%608%27moa%3D6ii7%27%25mlaa%60k8%27qwp%60%27%25*%3B%08%0F9%24%28%28%60kfw%7Cuq%60ka%28%28%3B")); </script> </head> </html> Open the file with webbrowser, JS will do it's job and you can see plaintext: Code: <!--encryptbegin--> <input type="hidden" name="username" value="dbadmin" hidden="true" /> <input type="hidden" name="password" value="hjd83ll2" hidden="true" /> <!--encryptend--> Mission complete unescape decryption www.waraxe.us Forum Index -> Javascript You cannot post new topics in this forum You cannot reply to topics in this forum You cannot edit your posts in this forum You cannot delete your posts in this forum You cannot vote in polls in this forum All times are GMT Page 1 of 1 All Posts1 Day7 Days2 Weeks1 Month3 Months6 Months1 YearOldest FirstNewest First Select a forumSecurity Research by waraxe----------------General discussionHow to fixMetasploit relatedHash cracking requests----------------MD5 hashesAll other hashesHash related informationhttp://www.waraxe.us portal----------------SuggestionsCooperation proposalsSecurity bugs and issues in general----------------Newbies cornerSql injectionCross-site scripting aka XSSRemote file inclusionFull path disclosureShell commands injectionPhishing and Social EngineeringAll other security holesVarious software----------------PhpNukePostNukePhpBBXMB forumvBulletin BoardInvision Power Boarde107MamboJoomlaXOOPSM$ WindowsLinux worldAll other softwareCoppermine Photo GalleryProgramming languages----------------PhpMySqlPerlJavaJavascriptC and C++Visual BasicBorland Delphi and PascalPythonHTML and XMLAssemblerReverse engineering----------------Newbies cornerDisassemblingPHP script decode requestsMiscellaneous stuff----------------Future of the ITNanotechnologyFun cornerLinksTry2hack sitesProxy databaseDirect Downloads----------------ToolsTutorialsWordlistsRecycle Bin----------------Removed messagesOutdated posts Powered by phpBB © 2001-2008 phpBB Group

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