Python Penetration Testing Cookbook

How to do it...

We can create a FIN scanner as following:

1. As we did in the previous recipe, we have to create another file, fin-scanner.py, and open it in our editor.
2. Then import the required module:

from scapy.all import * 

3. As we did for the SYN scanner, set the variables and create the function to check whether the server is up or not:

host = 'www.dvwa.co.uk' 
ip = socket.gethostbyname(host) 
openp = [] 
filterdp = [] 
common_ports = { 21, 22, 23, 25, 53, 69, 80, 88, 109, 110,  
                 123, 137, 138, 139, 143, 156, 161, 389, 443,  
                 445, 500, 546, 547, 587, 660, 995, 993, 2086,  
                 2087, 2082, 2083, 3306, 8443, 10000  
                } 
def is_up(ip): 
    icmp = IP(dst=ip)/ICMP() 
    resp = sr1(icmp, timeout=10) 
    if resp == None: 
        return False 
    else: 
        return True  

4. Now we can create ...