Hackers Cook Up a Storm: Docker Honeypots Drained for Monero Mining

Sneaky hackers are using the Docker Engine API to spawn Alpine Linux containers and mount attacks, from sneaking in SSH keys to deploying Monero mining minions. Watch out for those Cron jobs—they’re the real party crashers in this cyber shindig. #DockerDeviousness

Hot Take:

It seems cybercriminals have found a new playground in the cloud, and they’re behaving like unsupervised toddlers in a sandbox. Instead of building sandcastles, they’re constructing elaborate malware condos complete with rootkit wallpaper and Cron job furniture. It’s like watching a ‘Home Invasion’ reality show, but with Docker containers and a lot less charm.

Key Points:

  • Attackers are throwing Docker parties, and your cloud server is the unwilling host.
  • The bash bash: Crooks use Cron jobs to execute base64-encoded mischief on the fly.
  • They’ve got the ‘vurl’ power: A TCP connection opens the door to C2 fun and games.
  • Rootkits and reverse shells are the new black in attacker fashion.
  • SELinux? More like See-ya-later Linux, as attackers disable security and uninstall monitoring agents.

Need to know more?

Invitation to the Malware Gala

Picture this: a fancy gala where the dress code is 'Invasive Malware Chic'. Researchers at Cado Security Labs RSVP'd to the event after spotting shenanigans within a Docker honeypot. The attackers didn't just sneak in—they redecorated the place with a Cron job that decodes base64-encoded shell commands faster than you can say "malicious payload."

Do You Even 'vurl', Bro?

The attackers introduced 'vurl', a shell script that's about as friendly as a piranha in a goldfish tank. It's the tool they use to phone home to their C2 server and say, "Hey, we got in!" And if 'vurl' fails to deliver the payload, they've got a Python script up their sleeve because why not have a plan B when hijacking servers?

Hide and Seek: Rootkit Edition

These cybercriminals are playing a game of hide and seek with your server's processes, and guess what? They're winning. They're deploying user-mode rootkits that are better at hiding than a chameleon at a Skittles party. They even use 'shopt' to make sure their sneaky shell commands leave no trace, like a ghost who's really good at doing its own laundry.

The Key to Persistence

What's a cybercriminal's favorite type of exercise? Persistence training! And they've got persistence in spades, from inserting their own SSH keys to ensure they can come back anytime (no knocking required) to mining Monero like they're gearing up for a crypto gold rush.

Utilities Included Apartment

In this malware-infested apartment complex, the utilities are top-notch if you're an attacker. They come with 'masscan' for scoping out the neighborhood (read: host discovery) and a special feature that makes your server more accommodating by disabling those pesky security features.

One Cloud to Rule Them All

Cado's researchers are sounding the alarm on the variety of ways attackers can waltz into cloud environments. The attackers are like diligent students of the cloud, except they use their knowledge for evil, exploiting web-facing services and vulnerabilities faster than you can say "Maybe we should update our security protocols?"

Tags: Cloud Security Vulnerabilities, Command and Control Tactics, Container Escape Technique, Docker Engine API Exploit, Linux malware, Monero Cryptojacking, SSH Key Injection