Malware Hashes File hash intelligence
Database of known malware file hashes. Check files against our database to identify malware families and threats.
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# IsMalicious.com Blocklist - File Hashes (All Levels)# Format: Plain# Generated: 2026-10-05T21:21:45.982162084+00:00# Total entries: 3835861# Update frequency: every 12 hours# Category: Malware# Threat level: All Levels# Website: https://ismalicious.com# © 2026 IsMalicious (compilation). Licensed to the downloading account under https://ismalicious.com/terms; redistribution of the compilation prohibited. Third-party entries remain under their providers' licences — see https://ismalicious.com/sources.# Filtered by category: malware91646dc944a9b144775945568f2acea316a21b25f870f9dad1d4adce7c226deb6ec4f8b4cc72fa8f750965025d6755b2e3b35476ea7d4de4b689a952ab25ed5ad1063149a03c0f342cfba9ad26bd614a1011045ce4f7a7fbaff38fc2694eee95a2f1c54e1c4b1babd193308c9055bcb7
Same family, other types
- blocklist-urls-malware.txt191 347 entriesFree sample
3.3M+
Hashes
1,000+
Families
Daily
Updates
MD5/SHA
Formats
Key features. Everything you need to protect your infrastructure and users.
Multiple Hash Types
MD5, SHA1, and SHA256 for each sample.
Family Classification
Malware families and variants identified.
Sandbox Data
Behavioral analysis from sandbox execution.
Daily Updates
New samples added every day.
API Lookup
Real-time hash checking via API.
Bulk Download
Download hash lists for offline use.
Use cases. How security teams use this tool.
Endpoint Protection
Block files matching known malware hashes.
Email Gateway
Check attachments against hash database.
Incident Response
Identify malware during investigations.
Threat Hunting
Search for malware presence in your environment.
Frequently asked questions.
What hash types do you support?
How do you classify malware families?
Can I submit samples?
How often is the database updated?
Cite this data
These figures may be quoted in research, articles and reports. Attribute them to isMalicious with a link to this page, so readers can check the numbers at the source and see how they move.
Attribution text: Source: isMalicious, Malware Hash Database — https://ismalicious.com/data/malware-hashes
Related tools.
Malware file hash database
One page per malware sample: family, file type, antivirus signatures, its MD5, SHA-1 and SHA-256 and the reports that cite it.
Malicious URL database
A page for each malicious URL with enough intelligence for a report: threat type, URLhaus record, files it served and host.
Malware Families
Family profiles, campaigns, and related CVEs
File Hash Lookup
Interactive hash reputation check
Lookup API
Programmatic hash checks
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