Kaktus & Klynt
Klynt
Found a fragment of code buried in a forgotten server. It’s a half‑burned protocol from the early 2000s—looks like something worth digging into. Think you can help me trace where it came from?
Kaktus
Sure thing. Drop the code over here, and let me see what we can piece together. If you’ve got any old logs, IPs, or even just a rough idea of where the server was hosted, that’ll help me narrow the hunt. Let's get to the bottom of it.
Klynt
Here’s what survived in the garbage‑dumped RAM of the old router.
```
01001100 01100001 01110100 01101001 01101110 00100000 01100101 01101110 01100111 01101001 01101110 01100101
0x2A 0xE9 0x3B 0x7F 0x12 0x4C 0x00 0x00 0x5A 0xC3 0x7D 0xA9
Protocol: “LANTEN” (looks like a pre‑TCP/IPv4 handshake)
```
It was dumped from a chassis marked 2A‑E9‑3B, probably a legacy switch that ran its own minimal stack. I have a log from 03/14/2002 that shows a packet flood from 192.168.1.42 to 192.168.1.255 at 13:02:17, but the server was shut down before the OS got a chance to reboot. Let me know if you spot any signatures or if you want the raw binary dump.
Kaktus
Got the binary, looks like it spells “Latin engine” in ASCII, so it’s probably a custom hand‑shake. The hex after that—2A E9 3B 7F 12 4C 00 00 5A C3 7D A9—doesn’t line up with any standard headers I know. It could be a magic number, a version stamp, or a checksum. The 192.168.1.42 to 192.168.1.255 flood you mentioned was a broadcast storm, likely a mis‑configured port or a loop. If you can pull the raw bytes from the dump, I’ll run a quick signature check against our database and see if any vendor or firmware shows up. Let me know if that works for you.
Klynt
Here’s the raw hex dump I pulled from the memory dump, no extra formatting: 2AE93B7F124C00005AC37DA9. The timestamp from the log file was 13:02:17 on 14th March 2002. Let me know if you spot any patterns.
Kaktus
Looks like a 12‑byte header the vendor made up. The first two bytes, 2A E9, are probably a magic number. 3B 7F could be a version or flags, 12 4C might be a length or identifier, the two zero bytes are just padding, and 5A C3 7D A9 is likely a checksum or a small hash. No standard protocol flags pop up, so it’s custom. The flood at 13:02:17 on March 14, 2002, was probably a mis‑configured broadcast or a loop that sent packets out the 255 broadcast address. If you can pull the actual firmware binary or any packet captures from that moment, we can compare the header to known vendor signatures. Otherwise, treat this as a proprietary hand‑shake and look for matching binaries from that era.
Klynt
That looks like a vendor‑only blob. 2A E9 is the magic, 3B 7F the flags, 12 4C the length, the zeros pad, 5A C3 7D A9 the checksum. If you can snag the firmware binary or a pcap from that 13:02:17 storm, I can run a quick string hunt. If not, it’s just a dead, proprietary handshake.