Network Connection Creation

The initial establishment of a network session, where a system or process initiates a connection to a local or remote endpoint. This typically involves capturing socket information (source/destination IP, ports, protocol) and tracking session metadata. Monitoring these events helps detect lateral movement, exfiltration, and command-and-control (C2) activities.

Data Collection Measures:

• Windows:
• Event ID 5156 – Filtering Platform Connection - Logs network connections permitted by Windows Filtering Platform (WFP).
• Sysmon Event ID 3 – Network Connection Initiated - Captures process, source/destination IP, ports, and parent process.
• Linux/macOS:
• Netfilter (iptables), nftables logs - Tracks incoming and outgoing network connections.
• AuditD (connect syscall) - Logs TCP, UDP, and ICMP connections.
• Zeek (conn.log) - Captures protocol, duration, and bytes transferred.
• Cloud & Network Infrastructure:
• AWS VPC Flow Logs / Azure NSG Flow Logs - Logs IP traffic at the network level in cloud environments.
• Zeek (conn.log) or Suricata (network events) - Captures packet metadata for detection and correlation.
• Endpoint Detection & Response (EDR):
• Detect anomalous network activity such as new C2 connections or data exfiltration attempts.

1. Přehled

1.1 Odkazy

1.2 Identifikované požadavky

1.3 Související regulace

2. Identifikované požadavky

3. Související regulace

Propojené úkoly

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