update exec payload source, update generated class.

Author: For-ACGN

cmd/payload/calc.class

@@ -1,4 +1,4 @@
-public class Main {
+public class Calc {
     static {
         try {
             Runtime.getRuntime().exec("calc");

cmd/payload/nop.class

@@ -0,0 +1,9 @@
+public class Nop {
+    static {
+        try {
+            // Runtime.getRuntime().exec("notepad");
+        } catch (Exception e) {
+
+        }
+    }
+}

cmd/payload/notepad.class

@@ -0,0 +1,9 @@
+public class Notepad {
+    static {
+        try {
+            Runtime.getRuntime().exec("notepad");
+        } catch (Exception e) {
+
+        }
+    }
+}