NPM debug and chalk packages compromised

One of the most insidious parts of this malware's payload, which isn't getting enough attention, is how it chooses the replacement wallet address. It doesn't just pick one at random from its list.

It actually calculates the Levenshtein distance between the legitimate address and every address in its own list. It then selects the attacker's address that is visually most similar to the original one.

This is a brilliant piece of social engineering baked right into the code. It's designed to specifically defeat the common security habit of only checking the first and last few characters of an address before confirming a transaction.

We did a full deobfuscation of the payload and analyzed this specific function. Wrote up the details here for anyone interested: https://jdstaerk.substack.com/p/we-just-found-malicious-code...

Stay safe!

> This is a brilliant piece of social engineering baked right into the code. It's designed to specifically defeat the common security habit ...

I don't agree that the exuberance over the brilliance of this attack is warranted if you give this a moment's thought. The web has been fighting lookalike attacks for decades. This is just a more dynamic version of the same.

To be honest, this whole post has the ring of AI writing, not careful analysis.