SIEM Connector Development for Real-Time Security Visibility

ForshTec engineers production-grade connectors for Splunk, Elastic, Microsoft Sentinel, and IBM QRadar. Every connector ships CIM-compliant, OCSF-aligned, stress-tested at enterprise EPS volumes, and certified for vendor marketplaces — so your customers get clean, analyst-ready data from day one.

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Building a robust SIEM connector requires more than just API knowledge…

Building a robust SIEM connector takes more than API calls—it requires security data modeling, detection context, and operational reliability (rate limits, retries, backpressure, versioning). That’s where ForshTec helps.

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Why Choose Us

Parser & Field Extraction Engineering : We build reliable parsers (regex + structured) to extract consistent fields from messy logs—so detections and dashboards actually work.

SIEM-Native Implementation: We deliver using platform best practices—Splunk add-ons/apps, Sentinel data connectors + automation, Elastic integrations/Beats, QRadar DSM patterns—aligned to each ecosystem’s packaging and deployment model.

Performance & Reliability by Design: Built for high-volume streams with backoff, pagination, checkpointing, batching, and observability—without crashing agents or breaching API limits.

Legacy + Proprietary Source Support: We integrate legacy systems and internal tools via syslog, file drops, APIs, or collectors—then normalize into SIEM-ready formats.

SIEM CONNECTOR CAPABILITIES

SIEM Connectors Built for the Way Analysts Actually Work

Splunk Technology Add-on (TA) Development

We build Splunk-certified TAs that pass AppInspect, normalize events to CIM, and ship with field extractions, lookup tables, saved searches, and full documentation. End-to-end Splunkbase submission management included.

Elastic SIEM Integration & ECS Normalization

Engineering-first Elastic integration packages with ECS field mapping, custom ingest pipelines, detection rule packages, and OCSF alignment. Built to work with Elastic Security's out-of-the-box detections from day one.

Microsoft Sentinel Connector Development

Custom Sentinel data connectors with KQL analytics rules, ASIM normalization, and workbooks. We manage the Microsoft Sentinel Content Hub submission process end-to-end.

IBM QRadar & ArcSight DSM Development

Device Support Modules for QRadar and SmartConnectors for ArcSight that correctly parse and categorize events — whether your log format is CEF, LEEF, JSON, or proprietary syslog.

OCSF-Aligned Data Normalization

Future-proof your connector against schema migrations by normalizing to the Open Cybersecurity Schema Framework (OCSF) — the vendor-neutral standard backed by AWS, CrowdStrike, Splunk, and 100+ security companies.

Marketplace Submission & Certification

We manage Splunkbase, Elastic Integrations Catalog, and Microsoft Sentinel Content Hub submissions — handling review cycles, AppInspect remediations, and documentation requirements until certification is achieved.

Connector Lifecycle

A proven lifecycle that takes a connector from API discovery to certification and long-term support.

API Analysis

Understand endpoints, authentication flows, pagination, rate limits, webhooks, and data structures.
Output: API feasibility + extraction strategy.

Product Setup

Configure the source product and test environment to generate representative data for target use cases.
Output: test dataset + event coverage checklist.

Mapping

Map product fields to the target data model (SIEM schema / ECS / OCSF) to ensure accurate, actionable telemetry.
Output: mapping sheet + sample payloads.

Development

Build the connector: collect, parse, normalize, enrich, transform, and validate events at scale.
Output: working connector + configuration + observability.

Certification

QA, performance testing, compliance checks, and vendor validation aligned to marketplace/cert requirements.
Output: cert-ready package + test report + documentation.

Support

Bug fixes, schema updates, API changes, and enhancements with a defined release process.
Output: maintenance plan + upgrade cadence.

Plug-and-Play Configuration

We ship intuitive configuration and validation so users can set endpoints, credentials, and filters safely—without manual edits.

Enrichment & Context

Optional enrichment via threat intel, asset inventory, and identity context—so events become actionable detections, not raw logs.

Ingestion & Cost Control

Filtering, sampling, and routing controls reduce low-value noise before it hits the SIEM—saving storage and improving signal quality.

FAQs

Common Questions About SIEM Integration.

Everything you need to know about building, certifying, and maintaining connectors for your security ecosystem.

How long does it take to build a Splunk Technology Add-on (TA)?

A standard Splunk TA development engagement runs 3–6 weeks depending on event complexity, number of sourcetypes, CIM mapping scope, and API availability. Splunkbase submission and AppInspect certification adds 1–3 weeks. Total: expect 4–9 weeks from kickoff to marketplace-published.

Can you build a SIEM connector for a custom or proprietary log format?

Yes. We've built connectors for custom JSON schemas, binary protocols, vendor-specific syslog variants, and formats without public API documentation. All connectors are normalized to CIM, ECS, or OCSF regardless of source format complexity.

What's the difference between CIM, ECS, and OCSF?

CIM (Common Information Model) is Splunk's field normalization schema. ECS (Elastic Common Schema) is Elastic's equivalent. OCSF (Open Cybersecurity Schema Framework) is a vendor-neutral open standard supported by AWS, CrowdStrike, Splunk, and 100+ security companies. ForshTec builds to all three and advises on which is right for your platform strategy.

Do you manage the full Splunkbase or Elastic marketplace submission?

Yes. We manage the full submission process — packaging your TA/app to spec, submitting to AppInspect or the relevant catalog, interpreting all review failures, remediating issues, and iterating until certification is achieved. You don't need to learn the submission process.

How do you handle high EPS environments?

Load and stress testing is a standard part of every SIEM connector engagement. We simulate peak throughput scenarios (50,000+ EPS), test retry and backpressure logic, verify queue management under connection failures, and confirm zero data loss before delivery.

Do you support both on-premises and cloud SIEM deployments?

Yes. ForshTec builds connectors for Splunk Enterprise (on-prem), Splunk Cloud, Elastic self-hosted and Elastic Cloud, Microsoft Sentinel (Azure-native), and hybrid deployment architectures. Deployment model is scoped during the discovery phase.

Build a SIEM Connector That Ships.

Tell us your source system and target SIEM. We’ll propose an approach, timeline, and packaging path (internal deployment or marketplace-ready).