Enterprise packet investigation · Industrial and OT

Reduce downtime without guessing at control traffic.

Investigate operational outages, protocol errors, command anomalies, remote access, and malicious traffic from a passive packet record—while preserving safety, coverage, and uncertainty boundaries.

Illustrative command reviewUNEXPECTED WRITE / VERIFY
01 · WriterEngineering hostNew source for this window
02 · CommandWrite multiple registersFunction · address · value
03 · DeviceController responseTiming · status · repetition
Exact frame · endpoints · decoded fields · time window · baseline coverage

A write is a lead, not proof of compromise. Verify authorization, process context, capture completeness, and expected maintenance activity.

Explanatory workflow—not a customer incident or a claim that every protocol exposes the same semantic depth.

Operations and security

Protect availability. Explain the command path.

PacketSafari analyzes supplied captures; it is not an active controller, safety system, continuous OT monitor, or replacement for operational authority.

01

Reduce operational downtime

Separate network loss, device response, controller behavior, service wait, path policy, and capture limitations before a production incident becomes a vendor blame loop.

02

Find command anomalies

Review supported write, control, indication, error, node, and process-state signals against endpoints, timing, repetition, and the available baseline.

03

Investigate IT/OT attack paths

Correlate remote access, jump hosts, identity services, lateral movement, scans, C2, tunnels, and threat-intelligence matches with exact packet pivots.

04

Resolve supplier responsibility

Give operations, controls engineers, network teams, security, OEMs, integrators, and service providers one inspectable packet chronology.

Simple value estimate

What could faster evidence be worth?

Use three planning assumptions. Count only incidents where packet investigation is part of the response and only hours you genuinely believe better evidence could remove.

Annual modeled valueIncidents × hours potentially saved × cost or exposure per hour
Hours potentially recovered144 / year
Modeled annual value€1,728,000

Illustrative planning estimate—not a PacketSafari guarantee or customer result. Validate time saved and business impact during an evaluation.

Critical systems and protocols

Match protocol depth to the operational decision.

Semantic anomaly support, decoded packet investigation, and parser presence are different levels. Confirm exact variants and required fields during evaluation.

Semantic anomaly paths

PLC and RTU control · supervisory commands · process-state exchangesModbus/TCP · DNP3 · CIP/ENIP · OPC UA

Review supported writes, control and indication behavior, protocol errors, OPC UA node or security signals, repetition, and endpoint roles.

Electrical and substation traffic

IED · protection and control · station and process bus · SCADA gatewayIEC 61850 GOOSE · MMS · IEC 60870-5-104

Reconstruct decoded events, timing, operational labels, transaction context, unexpected peers, and available control-state evidence.

Automation and manufacturing

PLC · HMI · engineering workstation · cell or line controllerS7comm · PROFINET · EtherNet/IP · industrial Ethernet

Trace connections, decoded functions, errors, state changes, retransmissions, and communication gaps around the production event.

Building and infrastructure control

Building automation · physical environment · access and facility systemsBACnet · OPC UA · Modbus · IP services

Identify unusual controllers, requests, peers, timing, and paths while keeping unimplemented field-level interpretation explicit.

IT/OT boundary and remote access

Firewall · VPN · jump host · historian · directory · vendor supportTLS · RDP · SSH · SMB · Kerberos · LDAP · DNS

Correlate remote access, identity, encrypted sessions, lateral movement, and the exact boundary between enterprise and control networks.

Network and security context

Switching · routing · monitoring · time · name services · external peersTCP · UDP · ARP · ICMP · DNS · DHCP · NTP · SNMP

Separate transport or infrastructure failure from control-system symptoms and combine it with signature, behavioral, scan, flood, and intelligence evidence.

Evaluation and procurement

Prove value without touching the process.

Start with a representative capture and a known operational question. Keep safety decisions with authorized operators and controls engineers.

  1. 01

    Capture point and topology: define which zones, conduits, redundant paths, controllers, and remote-access boundaries are actually visible.

  2. 02

    Representative protocols: record exact variants, ports, encapsulation, encryption, vendor extensions, firmware, and the fields required for the decision.

  3. 03

    Operational baseline: identify expected controllers, writers, command classes, timing, maintenance windows, and legitimate engineering activity.

  4. 04

    Passive workflow: confirm analysis uses supplied PCAP evidence and introduces no active polling or control traffic into the process environment.

  5. 05

    Success evidence: measure time to direction, packet pivots, ruled-out domains, command interpretation, missing evidence, and accepted next action.

  6. 06

    Deployment boundary: qualify data storage, access, model routing, egress, capacity, retention, and offline operation for the selected site profile.

Security and resilience context

NIST OT security guidance

SP 800-82 Rev. 3 addresses OT threats and countermeasures while recognizing performance, reliability, and safety requirements.

NIST SP 800-82 Rev. 3

IEC 62443 asset-owner programs

IEC 62443-2-1:2024 specifies security-program policy and procedure requirements for operational IACS asset owners.

IEC 62443-2-1:2024

NIS2 and local critical-infrastructure rules

Covered entities may face risk-management, incident-handling, continuity, supply-chain, and reporting obligations through national implementation.

ENISA NIS2 overview

PacketSafari supplies passive packet-investigation evidence. It does not certify IEC 62443 or NIS2 compliance, determine safety, or authorize control actions.

Bring the difficult capture

Measure time to evidence on your own process traffic.

Plan an evaluation