implementing-network-traffic-analysis-with-arkime

name	implementing-network-traffic-analysis-with-arkime
description	Deploy and query Arkime (formerly Moloch) for full packet capture network traffic analysis. Uses the Arkime API v3 to search sessions, download PCAPs, analyze connection patterns, detect beaconing behavior, and identify suspicious network flows. Monitors DNS queries, HTTP traffic, and TLS certificate anomalies across captured traffic. Use when deploying and query arkime (formerly moloch) for full packet capture.
domain	cybersecurity
tags	["implementing","network","traffic","analysis"]
subdomain	network-security
version	1.0
author	oyi77
license	Apache-2.0
nist_csf	["PR.IR-01","DE.CM-01","ID.AM-03","PR.DS-02"]

Implementing Network Traffic Analysis With Arkime

Overview

Cybersecurity skill for implementing network traffic analysis with arkime. Follows industry best practices and security standards.

When to Use

Trigger phrases:

• "implementing network traffic analysis with arkime"

• "Deploy and query Arkime (formerly Moloch) for full packet capture network traffi"

• When deploying or configuring implementing network traffic analysis with arkime capabilities in your environment

• When establishing security controls aligned to compliance requirements

• When building or improving security architecture for this domain

• When conducting security assessments that require this implementation

When NOT to Use

• When you lack proper authorization for testing
• For production systems without change management
• When the task requires legal or compliance expertise beyond technical scope

Prerequisites

• Familiarity with network security concepts and tools
• Access to a test or lab environment for safe execution
• Python 3.8+ with required dependencies installed
• Appropriate authorization for any testing activities

Workflow

# Example: IOC detection
import re

IOC_PATTERNS = {
    "ip": r"\b(?:\d{1,3}\.){3}\d{1,3}\b",
    "domain": r"\b[a-z0-9-]+\.[a-z]{2,}\b",
    "hash_md5": r"\b[a-f0-9]{32}\b",
    "hash_sha256": r"\b[a-f0-9]{64}\b",
}

def extract_iocs(text: str) -> dict:
    return {k: re.findall(v, text) for k, v in IOC_PATTERNS.items()}

1. Assess Requirements — Evaluate current environment and define network traffic analysis implementation requirements.
2. Design Architecture — Plan the network traffic analysis architecture, including components, integrations, and data flows.