About this video
Reconnaissance is frequently one of the earliest stages of a network intrusion, with adversaries using techniques such as IP sweeps and port scans to build a detailed picture of the target environment. IP sweeps help attackers identify which addresses are active on a network, effectively locating devices that may be worth targeting. Port scanning then goes a step further, probing those identified devices to determine which services are running and potentially exploitable.
Although these techniques are often subtle, they are not invisible. The traffic generated during scanning and enumeration activity leaves detectable indicators within the network that, when properly monitored, can alert security teams to unauthorized reconnaissance. Analyzing this data allows defenders to investigate the scope of the activity, identify affected systems, and assess whether a broader compromise is already in progress or imminent.
What you'll learn
- Identify network reconnaissance indicators, including IP sweeps and port scans, that may signal adversarial activity on a network
What's covered
Network Reconnaissance Detection
- Adversary Exploration Methods
- IP Sweeps
- Find Active IP Addresses
- Identify Network Devices
- Port Scanning
- Target Discovered Devices
- Identify Open Ports
- Detection Indicators
- Network Traffic Signals
- Signs of Exploration
- Investigative Response
- Analyze Indicators
- Determine Compromise
Key terms
- IP Address
- A numerical label assigned to each device connected to a network that uses the Internet Protocol.
- Port Scanning
- A technique used to discover open ports and services available on a networked device.
- Threat Actor
- An individual or group responsible for a security incident or attack.
- Network Reconnaissance
- The process of gathering information about a target network, including active hosts and open ports, to identify potential attack vectors.
- IP Sweep
- A network scanning technique used to identify which IP addresses are active and in use across a range of addresses.
Topics
Network Reconnaissance
Port Scanning
Ip Sweeps
Network Enumeration
Threat Detection
Cybersecurity
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