pcap-triage-tshark
Fast extraction of protocol data from PCAP files using tshark.
Install
mkdir -p .claude/skills/pcap-triage-tshark && curl -L -o skill.zip "https://agentskills.codes/api/skills/download/3688" && unzip -o skill.zip -d .claude/skills/pcap-triage-tshark && rm skill.zipInstalls to .claude/skills/pcap-triage-tshark
Activation
This is the description your AI agent reads to decide when to run this skill — the better it matches your request, the more reliably it fires.
Fast workflow to inspect PCAPs and extract protocol-level details using tsharkKey capabilities
- →Filter PCAP traffic by protocol
- →Extract specific HTTP fields
- →Follow TCP streams
- →Export raw payload bytes
How it works
The skill utilizes tshark command-line flags to filter, parse, and extract specific network protocol fields or raw bytes from packet capture files.
Inputs & outputs
When to use pcap-triage-tshark
- →Extracting protocol details from network traffic
- →Analyzing suspicious PCAP files for security
- →Debugging network communications
About this skill
PCAP Triage with tshark
This skill shows a fast workflow to inspect PCAPs and extract protocol-level details.
Quick filters
List HTTP traffic:
tshark -r file.pcap -Y http
Filter by method or host:
tshark -r file.pcap -Y 'http.request.method == "POST"'
Inspect requests
Print useful HTTP fields:
tshark -r file.pcap -Y http.request \
-T fields -e frame.time -e ip.src -e tcp.srcport -e http.request.method -e http.request.uri
Follow a TCP stream
To view a request/response conversation:
tshark -r file.pcap -z follow,tcp,ascii,0
Change the stream index (0) if there are multiple streams.
Export payload bytes
If you need to examine raw bytes for tricky parsing, use -x:
tshark -r file.pcap -Y http -x
Practical tips
- Start broad (
-Y http), then narrow to one flow/stream. - Confirm where strings live (headers vs body vs URL query).
- Keep notes about invariant parts vs variable parts.
Helper script
If you want a quick summary across a PCAP (method, uri, and whether the exfil header appears), use:
bash scripts/summarize_http_requests.sh /root/pcaps/train_pos.pcap
When not to use it
- →Analyzing non-network capture files
- →Complex protocol decryption requiring external keys
Prerequisites
Limitations
- →Requires manual stream index identification for TCP following
How it compares
It provides a pre-configured workflow for common triage tasks instead of requiring manual construction of complex tshark filter strings.
Compared to similar skills
pcap-triage-tshark side by side with the closest alternatives in the catalog.
| Skill | Installs | Updated | Safety | Difficulty |
|---|---|---|---|---|
| pcap-triage-tshark (this skill) | 1 | 6mo | Review | Intermediate |
| reverse-engineering-tools | 73 | 3mo | No flags | Advanced |
| game-hacking-techniques | 42 | 2mo | No flags | Advanced |
| solidity-security | 15 | 2mo | No flags | Intermediate |
Try saying
Example prompts that trigger this skill in your AI assistant.
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