77 lines
2.8 KiB
Python
Executable File
77 lines
2.8 KiB
Python
Executable File
#!/usr/bin/env python3
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import ipaddress
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import logging
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from typing import List, Tuple
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from generator import get_version, write_to_file, Dns, create_resolver
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# Static Umbrella blockpage addresses: https://docs.umbrella.com/deployment-umbrella/docs/block-page-ip-addresses
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blockpage_ip_list = ['146.112.61.104', '::ffff:146.112.61.104', '146.112.61.105', '::ffff:146.112.61.105', '146.112.61.106', '::ffff:146.112.61.106', '146.112.61.107', '::ffff:146.112.61.107', '146.112.61.108', '::ffff:146.112.61.108', '146.112.61.110', '::ffff:146.112.61.110']
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def process(ipv4: List, ipv6: List, hostname: List):
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# Cisco Umbrella blockpage Domains
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umbrella_blockpage_hostname_dst = 'umbrella-blockpage-hostname'
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umbrella_blockpage_warninglist = {
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'description': 'Event contains one or more Cisco Umbrella blockpage hostnames as attribute with an IDS flag set',
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'name': 'List of known Cisco Umbrella blockpage hostnames',
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'type': 'hostname',
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'matching_attributes': ['hostname', 'domain', 'url', 'domain|ip']
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}
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generate(hostname, umbrella_blockpage_warninglist, umbrella_blockpage_hostname_dst)
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# Cisco Umbrella blockpage IPv4
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umbrella_blockpage_ipv4_dst = 'umbrella-blockpage-v4'
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umbrella_blockpage_ipv4_warninglist = {
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'description': 'Event contains one or more public IPv4 DNS resolvers as attribute with an IDS flag set',
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'name': 'List of known IPv4 public DNS resolvers',
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'type': 'cidr',
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'matching_attributes': ['ip-src', 'ip-dst', 'domain|ip']
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}
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generate(ipv4, umbrella_blockpage_ipv4_warninglist, umbrella_blockpage_ipv4_dst)
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# Cisco Umbrella blockpage IPv6
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umbrella_blockpage_ipv6_dst = 'umbrella-blockpage-v6'
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umbrella_blockpage_ipv6_warninglist = {
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'description': 'Event contains one or more public IPv6 DNS resolvers as attribute with an IDS flag set',
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'name': 'List of known IPv6 public DNS resolvers',
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'type': 'cidr',
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'matching_attributes': ['ip-src', 'ip-dst', 'domain|ip']
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}
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generate(ipv6, umbrella_blockpage_ipv6_warninglist, umbrella_blockpage_ipv6_dst)
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def generate(data_list, warninglist, dst):
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warninglist['version'] = get_version()
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warninglist['list'] = data_list
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write_to_file(warninglist, dst)
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def main():
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dns = Dns(create_resolver())
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ipv4_addresses = []
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ipv6_addresses = []
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host_names = []
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for ip in blockpage_ip_list:
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host_names.append(dns.get_domain_from_ip(ip))
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try:
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ip = ipaddress.ip_address(ip)
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if ip.version == 4:
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ipv4_addresses.append(ip.compressed)
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elif ip.version == 6:
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ipv6_addresses.append(ip.compressed)
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except ValueError as exc:
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logging.warning(str(exc))
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process(ipv4_addresses, ipv6_addresses, host_names)
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if __name__ == '__main__':
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main()
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