メニュー
Analyzes network traffic and exploits protocols. Use when working with PCAP files, Wireshark captures, packet analysis, protocol exploitation, traffic forensics, or data exfiltration detection.
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SOC 職業分類に基づく
Analyzes binary files for vulnerabilities and develops exploits. Use when working with ELF/PE executables, pwn challenges, buffer overflow, heap exploitation, ROP chains, format string bugs, or shellcode development.
Breaks cryptographic systems and decrypts ciphertext. Use when working with RSA, AES, XOR, classical ciphers, hash functions, or when challenge involves encryption, decryption, keys, or mathematical crypto attacks.
Extracts hidden data from files and analyzes forensic artifacts. Use when working with images, memory dumps, disk images, steganography, file carving, or when searching for hidden flags in files.
Reverses and exploits mobile applications. Use when working with Android APK files, iOS IPA files, mobile app reversing, Frida hooking, or app security analysis challenges.
Gathers intelligence from public sources. Use when searching for usernames, geolocating images, investigating social media, analyzing domains, or solving information gathering challenges.
Escapes Python sandbox restrictions. Use when working with restricted Python eval/exec environments, sandbox escapes, filtered input challenges, or Python jail challenges.
| name | networking |
| description | Analyzes network traffic and exploits protocols. Use when working with PCAP files, Wireshark captures, packet analysis, protocol exploitation, traffic forensics, or data exfiltration detection. |
| allowed-tools | Bash, Read, Write, Grep, Glob |
Progress:
- [ ] Get protocol overview (tshark -z io,phs)
- [ ] Search strings for flag pattern
- [ ] Export HTTP/SMB objects
- [ ] Follow interesting streams
- [ ] Check for credentials/exfiltration
- [ ] Extract flag
# 1. Basic info
capinfos capture.pcap
file capture.pcap
# 2. Protocol hierarchy
tshark -r capture.pcap -z io,phs
# 3. Conversations
tshark -r capture.pcap -z conv,tcp
# 4. Quick string search
strings capture.pcap | grep -i flag
tshark -r capture.pcap -Y "frame contains flag"
| Topic | Reference |
|---|---|
| Wireshark Filters & tshark | reference/wireshark.md |
| Protocol Analysis (HTTP, DNS, FTP, etc.) | reference/protocols.md |
| CTF Patterns & Attacks | reference/ctf-patterns.md |
| Tool | Purpose | Install |
|---|---|---|
| Wireshark | GUI packet analysis | brew install wireshark |
| tshark | CLI packet analysis | brew install wireshark |
| tcpdump | Packet capture | Built-in |
| tcpflow | TCP stream extraction | brew install tcpflow |
| nmap | Port scanning | brew install nmap |
| masscan | Fast port scanning | brew install masscan |
| scapy | Packet manipulation | pip install scapy |
from scapy.all import *
# Read PCAP
packets = rdpcap('capture.pcap')
# Filter packets
http_packets = [p for p in packets if TCP in p and p[TCP].dport == 80]
# Extract data
for p in packets:
if Raw in p:
print(p[Raw].load)