I use a unified, open-source SIEM and XDR platform to strengthen my organisation’s security posture. In this guide I set clear expectations about architecture, core capabilities, deployment, cloud and container visibility, and compliance.
I rely on one platform to reduce tool sprawl, streamline management and improve data fidelity across hybrid estates. This central approach speeds up detection and cuts false positives, so I can focus on real threats.
The platform integrates tightly with the Elastic Stack for fast search, correlation and dashboards. I will outline key features such as intrusion detection, log analysis, file integrity monitoring, vulnerability and configuration assessment, and automated response.
Throughout the guide I show how the solution scales from on‑premises to cloud workloads and containers. My aim is practical insight: faster detection, stronger compliance, and lower total cost of ownership without vendor lock‑in.
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My organisation faces sprawling IT estates that fragment visibility and drain scarce security resources. Digital transformation has left me juggling cloud, containers and legacy systems while trying to keep oversight tight.
I see adversary activities such as phishing campaigns, ransomware and DDoS attacks increasing in scale and sophistication. I must correlate signals quickly to reduce time to contain and limit impact.
Regulatory pressure from GDPR and NIS2 raises process and documentation requirements. I need audit‑ready evidence and consistent control execution to meet compliance and reporting requirements.
“Unifying prevention, detection, analysis and response cuts noise and speeds investigations.”
Consolidation matters: limited headcount and uneven skills force me to prioritise platforms that centralise monitoring and automate routine activities. Normalising information from multiple sources helps spot real threats faster.
| Challenge | Impact | Required capability |
|---|---|---|
| Sprawling systems | Fragmented visibility | Centralised monitoring |
| Advanced threats | Faster containment needed | Real‑time correlation |
| Regulations | Audit and reporting burden | Evidence and mapping to controls |
| Limited resources | Operational strain | Automation and curated content |
I adopted an agent‑centric approach that unifies telemetry from endpoints, servers and cloud into a single control plane. This helps me cut tool sprawl and get faster, clearer alerts.
I define this platform as a free, open‑source solution that merges SIEM and XDR. An agent on each system gathers logs, FIM events and vulnerability data. The central server, dashboard and indexer enable collection, correlation and visualisation.
The Elastic Stack integration powers rapid search and tailored dashboards. That speed improves my detection and shortens response cycles. I can adapt rules and content without vendor lock‑in.
The platform supports on‑prem systems, VMs, containers and major cloud providers (AWS, Azure, GCP). Agents and server‑side correlation remove blind spots during migrations.
| Component | Role | Enterprise outcome |
|---|---|---|
| Agent | Telemetry, FIM, local response | Improved endpoint protection |
| Server/Manager | Analysis, rule correlation | Faster detection and triage |
| Dashboard / Indexer | Visualisation, storage, search | Audit‑ready reports and compliance |
I map the architecture that turns raw logs into searchable events and timely alerts. This section explains how agents, the manager, the indexer and the dashboard cooperate to give me clear system and network visibility.
I deploy agents to harvest operating system and application log data, file integrity events, configuration assessments and vulnerability results. Agents forward these events securely to the server.
The server applies decoders and rules for fast analysis, and can also ingest syslog from network devices and third‑party sources when agents aren’t available. Analysed events are sent to the indexer for scalable storage and rapid retrieval.
Elastic Stack integration provides the search engine and visual layer that accelerates correlation and reduces mean time to root cause. The dashboard visualises alerts, status and configuration so I can tune rules and policies from a single pane.
“Separating components lets me scale indexers, manager nodes and agents independently to meet growth and SLAs.”
I design deployments by right‑sizing indexer nodes, tuning parsers and queuing, and segmenting workloads across clusters. Multi‑site and multi‑region layouts preserve availability and keep latency low.
| Component | Primary role | Key outcome |
|---|---|---|
| Agent | Collects logs, FIM, config and vuln data | Endpoint and system visibility |
| Server / Manager | Decoding, rule-based analysis, syslog ingestion | Centralised correlation and alerts |
| Indexer | Stores analysed events; enables search | Scalable retrieval and forensic analysis |
| Dashboard | Visualisation, management and tuning | Operational oversight and compliance reporting |
I combine rule-driven correlation with automated controls to turn noisy telemetry into decisive security actions. This section explains how I detect indicators, analyse logs and execute prebuilt actions to contain incidents quickly.
I leverage intrusion detection through decoders and rules that parse diverse logs and reveal IOCs such as suspicious processes, hidden files and rogue listeners. Agents spot malware, rootkits and cloaked processes on endpoints.
The server applies signature patterns and regular expressions to correlate events across systems. That correlation exposes multi-stage behaviour even when single events seem benign.
I ingest OS, application and network device log streams, including syslog, to build context for alerts. Comprehensive analysis produces high‑fidelity alerts I can route into existing workflows.
Threat intelligence enrichment, such as hash and domain lookups, improves validation before escalation.
I configure active response to execute predefined actions—blocking IPs, killing processes and quarantining systems—so I can contain a threat in seconds. File integrity monitoring plus intelligence checks can delete malicious files automatically.
“Tuning rules and thresholds reduces alert fatigue while preserving visibility of critical activities.”
I combine change telemetry with user and process context to make integrity alerts actionable.
I deploy file integrity monitoring to record who changed which files, when, and how. This gives me traceable evidence that ties changes to users and applications.
I use these signals to detect suspicious modifications and to correlate them with other alerts for higher‑fidelity detection.
Security configuration assessment scans hosts against CIS-based policies. It flags weak defaults, risky permissions and insecure services and offers remediation steps.
| Item | What it detects | Outcome |
|---|---|---|
| Critical files | Content, checksum, ownership | Forensic trace and alert prioritisation |
| Permissions | Changed modes and weak ACLs | Reduced attack surface after remediation |
| Configuration | Non‑compliant settings vs CIS | Actionable remediation guidance |
| Audit reports | Scan history and baselines | Compliance evidence (GDPR, PCI DSS) |
I match agent-collected software inventories to live CVE feeds so I spot vulnerable packages the moment they appear.
I ingest package lists from agents and correlate that data with feeds from NVD, Canonical, Microsoft and other vendors in real time. This reveals exposures across hosts and cloud instances before they are weaponised.
I use quick analysis to rank findings by severity, exploitability and business context. That focus helps me allocate limited resources to the most critical risks and cut the effective attack surface.
| Action | Outcome | Scope |
|---|---|---|
| Real-time matching | Faster detection of exposed packages | Hosts, cloud and containers |
| Prioritised fixes | Focused use of resources | Critical systems first |
| Rescan & validate | Confirmed risk reduction | Entire environments |
Result: a measurable improvement in security posture through timely responses and pragmatic hardening capabilities.
I map technical controls to regulatory clauses so auditors can see coverage and evidence quickly.
I align capabilities with specific requirements so each control statement is backed by data. This includes log collection, file integrity checks, configuration assessments and vulnerability scans tied to control IDs.
Mapping reduces assessor time and shows exactly which requirement is met and how evidence is produced.
I use dashboards to present concise, audit‑ready evidence: log summaries, alerts, configuration status and file change records.
“Clear evidence and scheduled reports turn audits from a scramble into a routine checkpoint.”
I schedule reports and retain them to support attestations, align retention and access controls with regulations, and preserve artefacts that meet evidentiary standards.
| Control area | What I collect | How it maps | Audit outcome |
|---|---|---|---|
| Logging & monitoring | Syslog, application logs, alerts | PCI DSS, NIST SIEM controls | Audit trail and incident reconstruction |
| Integrity & config | File checksums, config audits | HIPAA, GDPR, CIS baselines | Evidence of hardening and drift detection |
| Vulnerability management | Package inventories, CVE correlation | NIST, industry SLAs | Prioritised remediation and proof of fixes |
| Retention & access | Stored reports, role-based logs | GDPR, regulatory retention rules | Defensible data handling and reduced findings |
I ensure cloud workloads and containers never become blind spots by combining API visibility with lightweight agents.
I connect provider APIs to my agents to gain layered visibility across a multi‑cloud environment. This lets me assess configuration settings, detect risky defaults and surface misconfigurations early.
Integration with cloud APIs collects metadata, IAM changes and network flows, while agents provide host‑level logs and system events. Together they improve monitoring and speed detection across accounts and regions.
I integrate with the Docker engine to monitor image provenance, runtime behaviour, network settings and persistent volumes.
Alerts trigger on containers running in privileged mode, unexpected shells, vulnerable applications and changes to persistent storage. I treat cloud‑native and lift‑and‑shift applications the same, avoiding blind spots during migration.
I map incoming indicators to a recognised adversary framework so I can prioritise where to hunt and harden defences. This alignment gives me rapid visibility into tactics and techniques in play and helps me focus scarce effort on high‑impact gaps.
I align detections to ATT&CK so alerts carry context about likely attacker steps. Rules are mapped to technique IDs, exposing which phases of an intrusion are active and which mitigations apply.
Result: I codify rules that combine local patterns and external intel so detection precision improves and false positives fall. Enriched context also guides targeted responses that stop threats while minimising user impact.
I enrich events by querying VirusTotal, MISP and URLHaus and by applying YARA signatures. These external sources validate hashes, IPs and URLs and add threat intelligence that sharpens analysis.
“Enrichment and ATT&CK mapping let me turn noisy alerts into actionable responses.”
I begin every deployment with a clear review that defines requirements, inventories assets and confirms team skills and resources.
I run a focused posture assessment to scope coverage and set measurable objectives. This tells me how many agents I need, what server capacity to plan and which teams must be involved.
Outcome: a documented list of hosts, priorities and resource commitments that aligns with security goals and operational constraints.
I deploy agents consistently using automation and gold images so telemetry arrives reliably. I configure decoders and rules on the manager to match our environment and reduce noise.
I tailor dashboards to stakeholders: SOC analysts get live hunt views, compliance leads receive audit panels and service owners see status tiles.
I schedule regular updates and maintenance windows, always validating changes in a test environment before production. That preserves stability and reduces unexpected outages.
I document response playbooks and train the team on new features so operations keep pace with evolving threats. Continuous training turns platform capability into predictable outcomes.
“Plan capacity, automate installs, tune rules and invest in people — that combination keeps monitoring effective and security outcomes measurable.”
I translate telemetry into sector-specific actions to reduce risk and improve uptime. This short section shows practical use cases across e‑commerce, finance, healthcare, manufacturing and education, plus the KPIs I track to prove value.
E‑commerce: I monitor suspicious transactions and unauthorised logins by correlating user, device and transaction data. That detection speeds fraud response and reduces chargebacks.
Manufacturing: I alert on unusual machine behaviour and IoT anomalies. Early warnings preserve uptime and protect physical safety in operational systems.
Finance: I enforce PCI‑aligned controls, spotting anomalous transfers and risky access. This helps prevent large losses and supports audit readiness.
Healthcare: I protect electronic patient records and audit access to sensitive files. Integrity monitoring and file integrity controls detect tampering and data exfiltration attempts.
Education: I secure multi‑tenant systems and remote learning platforms. That reduces ransomware exposure and safeguards student identities and cloud resources.
“Combining network and endpoint visibility lets me trace incidents end‑to‑end and act where risk concentrates.”
I track a concise set of metrics to show progress and justify investment.
| Metric | Why it matters | Target |
|---|---|---|
| MTTD | How quickly I spot an incident | < 15 minutes |
| MTTR | Time to contain and remediate | < 60 minutes |
| False positives | Analyst efficiency and trust | < 10% |
I conclude that the platform gives me continuous visibility across cloud and on‑prem systems and simplifies monitoring of hosts, containers and services.
The open‑source model and Elastic Stack integration let me tailor rules, pipelines and dashboards to my needs while keeping the source code transparent.
I gain faster threat detection and measurable response that cut dwell time. Clear dashboards and reports also support compliance with regulations and speed audits.
Overall, this unified approach reduces risk, shortens response cycles and delivers sustained value as my organisation’s systems evolve.
I use the platform to collect and analyse security data across endpoints, servers, cloud and containers. It unifies detection, correlation and response so teams can spot intrusions, monitor file integrity, and meet regulatory requirements such as PCI DSS and GDPR.
I monitor changes to files, permissions and ownership with contextual information about the user and application that made the change. This helps detect unauthorised modifications, insider threats and accidental misconfigurations, which are critical for maintaining compliance and protecting sensitive data.
Yes. I deploy lightweight agents on hosts and use API connectors for AWS, Azure and Google Cloud to provide consistent visibility. The architecture supports containerised workloads and scales with indexing and centralised management to handle large volumes of logs and events.
I rely on rule-based detection, decoders and log correlation to identify indicators of compromise (IOCs). Alerts are enriched with threat intelligence and mapped to frameworks like MITRE ATT&CK so I can prioritise actionable incidents and trigger automated containment when needed.
I integrate with sources such as VirusTotal, MISP, URLHaus and YARA to enrich alerts. This improves detection fidelity and supports rapid context gathering for investigations and response actions.
I perform real-time CVE correlation using feeds from NVD, Canonical, Microsoft and others. By combining vulnerability data with asset context and threat signals, I prioritise remediation to reduce the attack surface effectively.
I map controls to standards like PCI DSS, HIPAA, GDPR and NIST, and generate dashboards and audit-ready reports. This provides evidence of controls, configuration assessments and file integrity events to streamline regulatory reviews.
I run SCA checks aligned with CIS benchmarks and other hardening guides to assess system configuration. The checks highlight deviations, recommend remediations and help maintain a secure baseline across servers and applications.
Alerts are correlated, scored and presented in dashboards with contextual details. I tune rules, exclude benign events and apply thresholding to reduce noise, improving mean time to detect and respond.
Yes. I configure active response actions to isolate hosts, block processes or execute scripts when defined conditions occur. This immediate containment option lowers risk while investigations proceed.
I monitor container images, runtime behaviour, privileged mode usage and persistent volume changes. This ensures visibility of supply‑chain risks, runtime anomalies and misconfigurations that could expose workloads.
I recommend a pre-deployment assessment to define scope, skills and hardware requirements. Typical steps include agent installation, manager configuration, Elastic Stack integration and dashboard tuning, followed by ongoing maintenance and team training.
Organisations in finance, healthcare, e‑commerce, manufacturing and education find clear value because of strict compliance needs and high risk profiles. The platform helps these sectors reduce detection times, enforce configuration standards and deliver audit evidence.
I use Elastic for search, correlation and visualisation, which accelerates investigations and reporting. Indexing and Kibana dashboards provide scalable analytics so teams can query large datasets and customise views for operations and audits.
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