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c/cybersecurity · by WPSteam@lemmy.world · 80d

Miasma Worm Goes Open Source: What's Actually Inside It. Complete Analysis

https://thecybersecguru.com/news/miasma-open-source-supply-chain-worm-analysis/

cross-posted from: https://lemmy.world/post/47960526

The Miasma supply chain worm just went open source. Here's an analysis of it... Initial observations - 5-layer obfuscation, GitHub-as-C2, AI tool config hijacking, dead-man switches, and a self-perpetuating PAT flywheel.

2 points · 2 comments · view on lemmy.world

2 Comments

wizzim@infosec.pub · 1 pts · 80d (1 reply)

Very interesting read! One thing I don't understand is this:

The ActionMutator targets custom GitHub Actions by force-pushing trojanized commits to their semver tags. Any downstream workflow that references uses: owner/action@v1 gets the compromised version next time it runs.

Does it mean we should not use Semver when referring to the actions? We should be using the action hash instead?

Or maybe the Semver with a version including the patch level?

WPSteam@lemmy.world · 1 pts · 80d

This but the thing is, until GitHub fixes it from their end (remember, it was already reported way back on 8th Oct, 2025), things like these will keep on happening