I couldn’t resist. I unzipped it on an isolated VM. What I found wasn’t malware, nor a game. It was a strange, elegant, and almost forgotten piece of Linux history. Inside the zip was a single 32-bit ELF binary: grab . No man page. Running strings on it revealed a few clues: nc -l -p 31337 , /var/log/cmd.log , and a header: CMDGRAB v1.1 - (c) 2004 tty0n1n3 .
You’ll hear the ghost of 2004 whisper back: ps aux . I never found the original author, tty0n1n3. The domain in the binary is dead. The email address bounces.
But somewhere, on some forgotten IRC log or Slashdot thread from 2004, someone probably said: “Check out this command grabber I made. Works great on my colo box.” command-grab-lnx-v1-1.zip
That’s why the zip file died out by v2.0. Real monitoring tools (Nagios, Zabbix, SNMP) won. And thank goodness.
Now you know. Have you ever found a weird binary from the early 2000s? Share your story in the comments—or better yet, tell me you still run UDP grabbers in production. I won’t judge. Much. I couldn’t resist
It was elegant. It was also terrifyingly insecure. Here’s the kicker: v1.1 had no authentication . Any packet to port 31337 would trigger the grab. If you ran this on a public server, anyone on the network could ask, “Hey, what commands are running right now?”
No README . No website. Just 1.2 MB of compiled mystery. It was a strange, elegant, and almost forgotten
But in 2004, on a trusted LAN? People used this. I know, because I found a second file in the zip: grabber.conf with a single line: