this post was submitted on 30 May 2024
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205
Mystery malware destroys 600,000 routers from a single ISP during 72-hour span (arstechnica.com)
submitted 5 months ago by [email protected] to c/[email protected]
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[–] [email protected] 12 points 5 months ago (2 children)

As someone who works with 100Gbps networking:

  • why the heck do these routers run Lua of all things???
[–] [email protected] 9 points 5 months ago (1 children)

OpenWRT uses Lua for its web UI. The interpreter can be really small which works well for tiny embedded devices with mere megabytes of storage, and it's much safer than writing a web GUI entirely in C.

[–] [email protected] 2 points 5 months ago

Yeah I completely forgot about the consumer side of things. I was expecting there being Cisco iOS/FRR router configs, not a full web dashboard.

[–] [email protected] 2 points 5 months ago

I imagine the malware binary includes a lua interpreter for executing scripts fetched from its command and control server.