Andrew Morris

Andrew Morris

@andrewmorr.is

๐Ÿ”ณ founder of @greynoise.io. computers, networks, technology enthusiast. big goober.

1.2K followers263 following213 posts

I am absolutely POSTING on linkedin now btw. It's like bluesky but nobody is funny and I can write like five million characters per post.

wiring my house up with fiber and I'm insanely humbled by my complete lack of even the most basic concepts. LC??? OM3???? multi mode???

asked claude to fix a VM that doesn't have internet or network access and its screenshotting and reading the terminal and using qm sendkeys to the proxmox host via SSH to fix it. that goes kinda hard.

between the ~1,400 networks we've seen exploiting React2Shell (CVE-2025-55182) we've captured about 100 different distinct malware payloads. Lots of vibe coded slop, coin miners, chinese comments, mirai variants, etc. hit us up if you're tracking this and want deets research@greynoise.io

TL;DR a couple hundred IPs suddenly started exploiting Cisco devices today - Entire exploitation cluster is originating from OVH (@ovhcloudus.bsky.social). - Payloads are interesting- attacker is even checking hardware temperatures most likely to ensure they are not honeypots

Andrew Morris@andrewmorr.is

Also please be aware if your org runs a lot of Cisco gear we're seeing a very large spike in exploitation against Cisco devices right now.

this is already up to >100 distinct source networks mass-exploiting this btw. I suspect this will climb very fast this weekend. Mostly chinese networks so far.

Shamlessly reposting from elsewhere- you can easily communicate between Linux VMs and guests using VSOCK (man7.org/linux/man-pa...). Here's some silly examples of bidirectional chat btwn host & guest using Socat. Or connecting via SSH to my home router from the VM without TCP/IP. No code required.

People always make fun of me for being polite to LLMs and I like to joke that I want to be on the good side of the robots when they take over the world. But really it just feels like a nasty habit to reinforce being an asshole on the computer. Unless we're playing Modern Warfare and you're 12.

I've just received word that we're preparing for this years annual @greynoise.io halloween candy bracket. Twix won years 1-2. 100 Grand won last year on a complete fluke. I might write a blog post about how last year's candy bracket undermined my faith in the democratic process.