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Complete skill folder anatomy across all cybersecurity skills: - scripts/agent.py: 80-150 line Python agents using real libraries (impacket, boto3, azure-mgmt-*, kubernetes, pefile, yara, scapy, shodan, stix2, etc.) - references/api-reference.md: real API documentation with method signatures - LICENSE: MIT license for all skill folders
109 lines
2.8 KiB
Markdown
109 lines
2.8 KiB
Markdown
# API Reference: Network Traffic Incident Analysis
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## tshark - CLI Wireshark
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### Basic Syntax
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```bash
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tshark -r <pcap_file> [options]
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```
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### Display Filters
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```bash
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tshark -r capture.pcap -Y "ip.addr==10.0.0.5"
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tshark -r capture.pcap -Y "tcp.port==445" # SMB
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tshark -r capture.pcap -Y "http.request" # HTTP requests
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tshark -r capture.pcap -Y "dns.qr==0" # DNS queries
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tshark -r capture.pcap -Y "tcp.flags.syn==1 && tcp.flags.ack==0" # SYN only
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```
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### Field Extraction
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```bash
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tshark -r capture.pcap -T fields -e ip.src -e ip.dst -e tcp.dstport \
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-Y "tcp.flags.syn==1"
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```
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### Statistics
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```bash
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tshark -r capture.pcap -q -z conv,ip # IP conversations
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tshark -r capture.pcap -q -z endpoints,ip # IP endpoints
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tshark -r capture.pcap -q -z io,stat,60 # I/O stats per minute
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tshark -r capture.pcap -q -z http,tree # HTTP request tree
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tshark -r capture.pcap -q -z dns,tree # DNS query tree
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```
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### Object Export
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```bash
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tshark -r capture.pcap --export-objects "http,/tmp/http_objects"
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tshark -r capture.pcap --export-objects "smb,/tmp/smb_objects"
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```
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## Zeek - Network Security Monitor
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### PCAP Analysis
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```bash
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zeek -r capture.pcap
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zeek -r capture.pcap local # With local policy scripts
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```
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### Output Logs
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| Log File | Content |
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|----------|---------|
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| `conn.log` | TCP/UDP/ICMP connections |
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| `dns.log` | DNS queries and responses |
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| `http.log` | HTTP requests |
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| `ssl.log` | TLS/SSL handshakes |
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| `files.log` | File transfers |
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| `notice.log` | Security notices |
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### Zeek-Cut Field Extraction
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```bash
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cat conn.log | zeek-cut id.orig_h id.resp_h id.resp_p proto service
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cat dns.log | zeek-cut query qtype_name answers
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cat http.log | zeek-cut host uri method user_agent
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```
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## Suricata - IDS/IPS
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### PCAP Analysis
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```bash
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suricata -r capture.pcap -l /tmp/output -k none
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suricata -r capture.pcap -S custom.rules -l /tmp/output
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```
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### Output Files
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| File | Content |
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|------|---------|
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| `fast.log` | One-line alert format |
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| `eve.json` | JSON event log (detailed) |
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| `stats.log` | Engine performance statistics |
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## Lateral Movement Ports
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| Port | Service | Significance |
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|------|---------|-------------|
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| 445 | SMB | File shares, PsExec, WMI |
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| 3389 | RDP | Remote Desktop |
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| 5985/5986 | WinRM | PowerShell Remoting |
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| 22 | SSH | Secure Shell |
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| 135 | RPC | DCOM, WMI |
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| 139 | NetBIOS | Legacy file sharing |
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## Scapy - Packet Analysis (Python)
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### PCAP Reading
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```python
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from scapy.all import rdpcap, IP, TCP
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packets = rdpcap("capture.pcap")
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for pkt in packets:
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if IP in pkt and TCP in pkt:
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print(pkt[IP].src, pkt[TCP].dport)
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```
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## NetworkMiner - Artifact Extraction
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### Syntax
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```bash
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NetworkMiner --inputfile capture.pcap --outputdir /tmp/artifacts
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```
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Extracts: files, images, credentials, sessions, DNS, parameters
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