Images

Overview

Images is a network forensics tool that appears across incident response workflows in this knowledge base. It is referenced as part of higher-level security analysis, investigation, monitoring, or validation activity rather than as an end in itself.

What It Is

Images is best understood as a incident-response tool in this knowledge base. Its role is conceptual and system-facing rather than procedural: it gives analysts or defenders a structured way to examine evidence, model system behavior, or reason about security state.

How It Works

Images works by turning technical inputs into more interpretable outputs at the system level. Across the source skills, it appears as part of larger analysis, investigation, monitoring, or validation loops rather than as a standalone end state.

Core Concepts

• network forensics
• PCAP analysis
• Wireshark
• Zeek
• traffic analysis
• incident response
• malware
• network analysis
• PCAP
• C2 detection
• malware analysis

Typical Workflow

• Live Capture (if incident is active):
• tcpdump -i eth0 -w capture.pcap host 10.1.5.42
• tcpdump -i eth0 -w c2_traffic.pcap host 185.220.101.42
• tcpdump -i eth0 -w capture_%Y%m%d%H%M.pcap -C 1000 -W 10
• From Existing Infrastructure:
• Export PCAP from full packet capture appliance (Arkime/Moloch, ExtraHop, Corelight)
• capinfos malware.pcap
• tshark -r malware.pcap -q -z io,phs
• tshark -r malware.pcap -q -z endpoints,ip
• tshark -r malware.pcap -q -z conv,tcp

Use Cases

• SIEM alerts on anomalous network traffic patterns requiring deeper investigation
• C2 beaconing is suspected and needs confirmation through packet-level analysis
• Data exfiltration volume or destination must be quantified from network evidence
• Lateral movement between systems needs to be traced through network connections
• An IDS/IPS alert requires packet-level validation to confirm or dismiss
• Analyzing only HTTP traffic when C2 is operating over HTTPS without SSL inspection
• Missing DNS tunneling because the data volume per query is small (but total over time is significant)
• Sandbox execution has captured a PCAP file and the network behavior needs detailed analysis
• Identifying the C2 protocol structure for writing network detection signatures
• Determining what data the malware exfiltrates and to which external infrastructure

Limitations

• Output still depends on context, data quality, and surrounding analysis.
• The tool should be interpreted as part of a broader workflow, not as a complete answer by itself.
• Capabilities and visibility vary depending on environment, integrations, and available inputs.

Related Tools

• And Credentials From PCAP Files, NetworkMiner, Wireshark, Zeek, And Protocol Decoding, Arkime, Beacon Detection, DNS

Sources

• analyzing-network-traffic-for-incidents
• analyzing-network-traffic-of-malware