Interpret common artifact elements from an event to identify an alert Implementing Cisco Cybersecurity Operations (210-255) IP Address (source/destination) IP address artifacts are useful to help identify both the attacker and the victim in a cybersecurity incident. IP address information can also help with tracking an attacker when they pivot through other systems. Client and […]
Extract files from a TCP stream when given a PCAP file and Wireshark Implementing Cisco Cybersecurity Operations (210-255) For this example, I made a sample pcapng file using Wireshark. I did a wget of a graphics file from my website. Go to File>Export Objects>HTTP (works the same with the other protocols listed) 2. Choose the […]
Identify these key elements in an intrusion from a given PCAP file : Source address, Destination address, Source port, Destination port, Protocols, and Payloads Implementing Cisco Cybersecurity Operations (210-255) PCAP files are a way of storing packet data captured using a packet sniffer like Wireshark. The Wireshark website has dozens of example packet captures that […]
Identify the elements from a NetFlow v5 record from a security event Implementing Cisco Cybersecurity Operations (210-255) When it comes to Netflow, the 5-tuple is king. Be sure to know the 5-tuple. Source IP Address Destination IP Address Source Port Destination Port Protocol 10.1.1.2 192.168.1.3 23343 443 TCP 10.1.3.3 192.168.3.2 43232 53 UDP 192.168.4.5 172.16.3.2 […]
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