Unique Identifiers of a Fresh Kali Image

Kali Linux

The act of attributing a cyber attack is a long sought after, but rarely attained goal. While things such as techniques, IP addresses, and other artifacts can plan an important role in attributing an attack, being able to attribute actions to a specific computer that has been obtained can help provide overwhelming proof of an act. In this post, I’m publishing a paper that I started working on a few months ago (life gets busy) that provides a forensic analysis of multiple freshly installed Kali systems. My goal over the coming months is to conduct similar experiments on other operating systems. I’ve also provided the raw data that I used to conduct my analysis.


SNMP Packets

Another problem from ACSC5. You’ve been able to get on a router and capture some traffic in an effort to map out the the corporate network. Your intelligence team has told you that your target device has an IP address of but no one knows that actual location of it. Examine the network traffic and see if you can figure out the location of that device.

Slow Mover

network forensics

Another problem from the 5th annual Army Cyber Skills Challenge.  The problem is called slow_mover and can be found here.

Your boss just handed you this PCAP that one of your network sensors captured. He’s positive that there is something fishy going on here but has no clue what it is.


The is a follow-on to the first find_the_stack problem from ACSC5.  This was originally supposed to be the third one in a series of challenges based on this problem but I had some problems with number two so this became number two.



This is the first of what will hopefully be many walk-throughs from various CTF competitions I’ve competed/worked on.  This first challenge is a simple one that I created for the 5th annual Army Cyber Skills Challenge.