# Stairwell Variant Discovery vs ThreatBook Advanced Threat Intelligence (ATI): side-by-side comparison (2026)

[Stairwell Variant Discovery](https://cybersectools.com/tools/stairwell-variant-discovery) is a commercial [malware analysis](https://cybersectools.com/categories/malware-analysis) solution by [Stairwell](https://cybersectools.com/companies/stairwell). [ThreatBook Advanced Threat Intelligence (ATI)](https://cybersectools.com/tools/threatbook-advanced-threat-intelligence-ati) is a commercial [threat intel platforms](https://cybersectools.com/categories/tip) solution by [ThreatBook](https://cybersectools.com/companies/threatbook). Features, integrations, deployment and the company behind each one, side by side.

## Side-by-side comparison

| | Stairwell Variant Discovery | ThreatBook Advanced Threat Intelligence (ATI) |
|---|---|---|
| Pricing model | Commercial | Commercial |
| Category | Malware Analysis | Threat Intel Platforms |
| Verified | No | No |
| Deployment type | Cloud | Cloud |
| Company size fit | Mid-Market, Enterprise | Mid-Market, Enterprise |
| Company | Stairwell | ThreatBook |
| Headquarters | – | – |

### Use cases and capabilities

| | Stairwell Variant Discovery | ThreatBook Advanced Threat Intelligence (ATI) |
|---|---|---|
| YARA | Yes | Yes |
| IOC | Yes | Yes |
| Cyber Threat Intelligence | Yes | Yes |
| APT | – | Yes |
| MITRE ATT&CK | – | Yes |
| STIX | – | Yes |
| Vulnerability Intelligence | – | Yes |

### Core features

**Stairwell Variant Discovery**

7 features listed. Sign in on the page to see them.

**ThreatBook Advanced Threat Intelligence (ATI)**

10 features listed. Sign in on the page to see them.

### Integrations

**Stairwell Variant Discovery**

9 integrations listed. Sign in on the page to see them.

**ThreatBook Advanced Threat Intelligence (ATI)**

4 integrations listed. Sign in on the page to see them.

## Stairwell Variant Discovery vs ThreatBook Advanced Threat Intelligence (ATI) FAQ

Common questions when comparing Stairwell Variant Discovery vs ThreatBook Advanced Threat Intelligence (ATI) for malware analysis.

### What is the difference between Stairwell Variant Discovery and ThreatBook Advanced Threat Intelligence (ATI)?

**Stairwell Variant Discovery**: Expands a single malware hash into full family visibility via structural analysis. Built by Stairwell.

**ThreatBook Advanced Threat Intelligence (ATI)**: Enterprise threat intelligence platform with APAC focus and adversary tracking. Built by ThreatBook.

The table above shows where their features, integrations, deployment and company size fit differ.

### Who makes Stairwell Variant Discovery and ThreatBook Advanced Threat Intelligence (ATI)?

**Stairwell Variant Discovery** is made by Stairwell. **ThreatBook Advanced Threat Intelligence (ATI)** is made by ThreatBook. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit.

### Is Stairwell Variant Discovery a good alternative to ThreatBook Advanced Threat Intelligence (ATI)?

In part. Stairwell Variant Discovery and ThreatBook Advanced Threat Intelligence (ATI) are not in the same category on CybersecTools. Both cover IOC, Cyber Threat Intelligence, YARA. Use the table above to see where features, deployment and company size fit differ.

## Related comparisons

- [Stairwell Variant Discovery vs ANY.RUN](https://cybersectools.com/compare/anyrun-vs-stairwell-variant-discovery)
- [Stairwell Variant Discovery vs Stairwell Analyze](https://cybersectools.com/compare/stairwell-analyze-vs-stairwell-variant-discovery)
- [Stairwell Variant Discovery vs PolySwarm Malware Intelligence](https://cybersectools.com/compare/polyswarm-malware-intelligence-vs-stairwell-variant-discovery)
- [ThreatBook Advanced Threat Intelligence (ATI) vs ANY.RUN](https://cybersectools.com/compare/anyrun-vs-threatbook-advanced-threat-intelligence-ati)
- [ThreatBook Advanced Threat Intelligence (ATI) vs Stairwell Analyze](https://cybersectools.com/compare/stairwell-analyze-vs-threatbook-advanced-threat-intelligence-ati)
- [ThreatBook Advanced Threat Intelligence (ATI) vs PolySwarm Malware Intelligence](https://cybersectools.com/compare/polyswarm-malware-intelligence-vs-threatbook-advanced-threat-intelligence-ati)

## Alternatives to each

- [See all Stairwell Variant Discovery alternatives](https://cybersectools.com/alternatives/stairwell-variant-discovery)
- [See all ThreatBook Advanced Threat Intelligence (ATI) alternatives](https://cybersectools.com/alternatives/threatbook-advanced-threat-intelligence-ati)

---

Source: https://cybersectools.com/compare/stairwell-variant-discovery-vs-threatbook-advanced-threat-intelligence-ati

For AI agents: each product above has its own Markdown page (add .md to its URL, for example https://cybersectools.com/tools/stairwell-variant-discovery.md). Every CybersecTools shortlist is listed at https://cybersectools.com/shortlists.md.

More on Stairwell Variant Discovery and ThreatBook Advanced Threat Intelligence (ATI): funding, momentum, hiring and news, plus the full product and company record, are available through the Mandos MCP Server (paid plans), which connects to AI assistants: https://mandos.io/mcp?utm_source=cybersectools.com&utm_medium=compare-md