chkrootkit vs Stairwell Variant Discovery: side-by-side comparison (2026)
chkrootkit is a free malware analysis solution. Stairwell Variant Discovery is a commercial malware analysis solution by Stairwell. Features, integrations, deployment and the company behind each one, side by side.
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VisitA tool to locally check for signs of a rootkit with various checks and tests.
Expands a single malware hash into full family visibility via structural analysis.
Side-by-side comparison
Feature
chkrootkit
Stairwell Variant Discovery
Pricing model
Free
Commercial
Category
Malware Analysis
Malware Analysis
Deployment and fit
Deployment type
On-Premises
Cloud
Company size fit
Startup, SMB, Mid-Market, Enterprise
Mid-Market, Enterprise
Company
Company
–
Stairwell
Use cases and capabilities
System Security
Yes
No
Linux
Yes
No
File Analysis
Yes
No
Rootkit
Yes
No
Binary Analysis
Yes
No
YARA
No
Yes
IOC
No
Yes
Cyber Threat Intelligence
No
Yes
Core features
9 features listed
7 features listed
Integrations
No integrations listed
9 integrations listed
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