Malicious MD5 Hashes

MD5 is a cryptographic hash function that produces a 32-character hexadecimal fingerprint of a file. Identical files produce identical hashes, so MD5 is a fast way to identify a known sample without exchanging the binary. Antivirus signatures, sandbox reports and Threat Intelligence feeds commonly cite MD5 hashes alongside SHA-1 and SHA-256.

Every 15 minutes. The pipeline scrapes RSS feeds from public Twitter/X researcher accounts and lists, extracts 32-character hex MD5 hashes from tweets, deduplicates against the past year, tags them with malware family, and republishes the result in CSV, JSON and RSS.

MD5 is faster and shorter, which matters for large-scale endpoint scanning where every byte saved on signature storage adds up. Many legacy AV and IDS systems index by MD5. For high-confidence detection or when collision resistance matters (e.g. forensic chain of custody), SHA-256 is preferred. TweetFeed publishes both.

TweetFeed is OSINT, not a sandbox. Hashes are sourced from public posts by infosec researchers, then deduplicated and tagged. Most posts include sandbox links; cross-reference VirusTotal, MalwareBazaar or your own sandbox to confirm a sample's verdict and gather family attribution before action.

Yes. Every TweetFeed feed is free and released into the public domain under CC0 1.0, with no API key, sign-up or rate card. You can use it in commercial or personal projects; a link back is appreciated but not required.

Feed the hashes into your EDR or YARA tooling as known-bad indicators, or pivot each hash through VirusTotal, Malpedia and Hybrid Analysis. Validate against VirusTotal or your own sandbox before blocking outright, since OSINT feeds can carry false positives.