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Free, client-side scanner for the 'Solar' JAR infector malware campaign that hit multiple German Minecraft networks in 2026 and wasn't caught by existing anti-malware plugins (see linked MCAntiMalware issue in the tool's own README for the confirming source).
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Adds a free, client-side (no upload, no backend — everything runs in the browser via JSZip) scanner for the "Solar" JAR infector, an undocumented malware campaign that hit at least 5 German Minecraft server networks between Feb-Aug 2026. It wasn't caught by existing anti-malware plugins at the time of writing (see OpticFusion1/MCAntiMalware#778). The original detection method (from https://gist.github.com/Plattio/d40f53c2e9f962746f3c01a1a244b9e4) required manually extracting and grepping every JAR by hand -- this automates that into a drop-in-your-JARs-get-a-clean/hit-result tool.
Live: https://jarscan.jdries.nl
Source: https://github.com/janibert1/mc-jar-scanner (MIT)