A categorized breakdown of my competencies in various cybersecurity domains.
Detailed walkthroughs of challenges I've solved. This is where I apply my skills and learn new techniques.
At this challenge i found my self in front of packets not just normal and the known packets this time with packets captured during a phone messaging through 5G SMS, and the description says What are these SMS I received as soon as I connected to the gNB?. to answer this question you need to understand the protocols gNB--the base station-- uses to connect UE(user equipement/client) with the 5G core network. and here is a walkthrough this.
A PCAP file was provided containing network traffic from a suspicious device. By analyzing the traffic with Wireshark and `tshark`, I discovered a series of ICMP packets with data hidden in the payload (a covert channel). Extracting and reassembling this data revealed a zip file password, which unlocked the flag.
This challenge provided a firmware image for an IoT device. Using Binwalk, I extracted the file system and found a custom binary. By reverse engineering the binary with Ghidra, I identified a hardcoded backdoor password in the firmware's telnet service, which allowed me to log in and read the flag file.
A curated list of websites, tools, and communities I use to stay sharp and learn new things. I highly recommend them!