--- id: 1409 card_url: "https://mdrss.com/web-mobile/mobile-development/1409" permalink_url: "https://mdrss.com/m/1409" thread_url: "https://mdrss.com/s/web-mobile" markdown_url: "https://mdrss.com/web-mobile/mobile-development/1409/1409.md" title: "Ecapture" annotation: "汉字 | English ---- Download ELF zip file release , unzip and use by command sudo ecapture --help. eCapture will automatically detect the system's OpenSSL library and start capturing plaintext." state: published thread: web-mobile domain: web-mobile category: mobile-development type: guide tags: ["android", "android-https-capture", "ebpf", "ebpf-go", "ebpf-tc", "ebpf-uprobe", "golang", "linux"] ontology_terms: [] relation_terms: [] license: "Apache-2.0" version: 1 snapshot_at: "2026-08-04T12:19:53.801Z" source_url: "https://github.com/gojue/ecapture" source_kind: "mdrss-final-catalog" platform_scam_risk: null platform_evidence_score: 0 evidence_urls: - "https://github.com/gojue/ecapture" --- eCapture Logo [汉字](https://github.com/gojue/ecapture/blob/HEAD/README-zh_Hans.md) | English [![GitHub stars](https://img.shields.io/github/stars/gojue/ecapture.svg?label=Stars&logo=github)](https://github.com/gojue/ecapture) [![GitHub forks](https://img.shields.io/github/forks/gojue/ecapture?label=Forks&logo=github)](https://github.com/gojue/ecapture) [![CI](https://github.com/gojue/ecapture/actions/workflows/codeql-analysis.yml/badge.svg)](https://github.com/gojue/ecapture/actions/workflows/code-analysis.yml) [![Github Version](https://img.shields.io/github/v/release/gojue/ecapture?display_name=tag&include_prereleases&sort=semver)](https://github.com/gojue/ecapture/releases) ### eCapture(旁观者): capture SSL/TLS text content without a CA certificate using eBPF. > [!IMPORTANT] > Supports Linux/Android on x86_64 (kernel 4.18+) and aarch64 (kernel **5.5+**). Kernel version requirements apply per CPU architecture for both Linux and Android. > Need ROOT permission or specific [Linux capabilities](https://github.com/gojue/ecapture/blob/HEAD/docs/minimum-privileges.md). > Does not support Windows and macOS system. ---- - [Introduction](#introduction) - [Getting started](#getting-started) - [Download](#download) - [ELF binary file](#elf-binary-file) - [Docker image](#docker-image) - [Capture openssl text content.](#capture-openssl-text-content) - [Modules](#modules) - [OpenSSL Module](#openssl-module) - [GoTLS Module](#gotls-module) - [Other Modules](#bash-module) - [Videos](#videos) - [Security & Operations](#security--operations) - [Contributing](#contributing) - [Compilation](#compilation) # Introduction * SSL/TLS plaintext capture, support openssl\libressl\boringssl\gnutls\nspr(nss) libraries. * GoTLS plaintext support go tls library, which refers to encrypted communication in https/tls programs written in the golang language. * Bash audit, capture bash command for Host Security Audit. * Zsh audit, capture zsh command for Host Security Audit. * MySQL query SQL audit, support mysqld 5.6\5.7\8.0, and MariaDB. ![](https://raw.githubusercontent.com/gojue/ecapture/HEAD/images/ecapture-help-v0.8.9.svg) # Getting started ## Download ### ELF binary file > [!TIP] > support Linux/Android x86_64/aarch64. Download ELF zip file [release](https://github.com/gojue/ecapture/releases) , unzip and use by command `sudo ecapture --help`. ### Docker image > [!TIP] > Linux only. ```shell # pull docker image docker pull gojue/ecapture:latest # run docker run --rm --privileged=true --net=host -v ${HOST_PATH}:${CONTAINER_PATH} gojue/ecapture ARGS ``` > **⚠️ Security Note**: `--privileged=true` grants full host access. For production use, consider specific capabilities instead. See [Minimum Privileges Guide](https://github.com/gojue/ecapture/blob/HEAD/docs/minimum-privileges.md#method-3-docker-with-specific-capabilities). see [Docker Hub](https://hub.docker.com/r/gojue/ecapture) for more information. ## Capture openssl text content. ```shell sudo ecapture tls ``` eCapture will automatically detect the system's OpenSSL library and start capturing plaintext. When you make an HTTPS request (e.g., `curl https://google.com`), the captured request and response will be displayed: ``` ... INF module started successfully. moduleName=EBPFProbeOPENSSL ??? UUID:233851_233851_curl_5_1_172.16.71.1:51837, Name:HTTP2Request, Type:2, Length:304 header field ":method" = "GET" header field ":path" = "/" header field ":authority" = "google.com" ... ``` > 📄 For complete output examples, see [docs/example-outputs.md](https://github.com/gojue/ecapture/blob/HEAD/docs/example-outputs.md). ## Modules The eCapture tool comprises 8 modules that respectively support plaintext capture for TLS/SSL encryption libraries like OpenSSL, GnuTLS, NSPR, BoringSSL, and GoTLS. Additionally, it facilitates software audits for Bash, MySQL, and PostgreSQL applications. * bash capture bash command * zsh capture zsh command * gnutls capture gnutls text content without CA cert for gnutls libraries. * gotls Capturing plaintext communication from Golang programs encrypted with TLS/HTTPS. * mysqld capture sql queries from mysqld 5.6/5.7/8.0 . * nss capture nss/nspr encrypted text content without CA cert for nss/nspr libraries. * postgres capture sql queries from postgres 10+. * tls use to capture tls/ssl text content without CA cert. (Support openssl 1.0.x/1.1.x/3.0.x or newer). You can use `ecapture -h` to view the list of subcommands. ### OpenSSL Module eCapture search `/etc/ld.so.conf` file default, to search load directories of `SO` file, and search `openssl` shard libraries location. or you can use `--libssl` flag to set shard library path. If target program is compile statically, you can set program path as `--libssl` flag value directly。 The OpenSSL module supports three capture modes: - `pcap`/`pcapng` mode stores captured plaintext data in `pcap-NG` format. - `keylog`/`key` mode saves the TLS handshake keys to a file. - `text` mode directly captures plaintext data, either outputting to a specified file or printing to the command line. #### Pcap Mode Supported TLS encrypted http `1.0/1.1/2.0` over TCP, and http3 `QUIC` protocol over UDP. You can specify `-m pcap` or `-m pcapng` and use it in conjunction with `--pcapfile` and `-i` parameters. The default value for `--pcapfile` is `ecapture_openssl.pcapng`. ```shell sudo ecapture tls -m pcap -i eth0 --pcapfile=ecapture.pcapng tcp port 443 ``` This command saves captured plaintext data packets as a pcapng file, which can be viewed using `Wireshark`. > 📄 For complete pcapng mode output, see [docs/example-outputs.md](https://github.com/gojue/ecapture/blob/HEAD/docs/example-outputs.md#tls-module--pcapng-mode). #### Keylog Mode You can specify `-m keylog` or `-m key` and use it in conjunction with the `--keylogfile` parameter, which defaults to `ecapture_masterkey.log`. The captured OpenSSL TLS `Master Secret` information is saved to `--keylogfile`. You can also enable `tcpdump` packet capture and then use `Wireshark` to open the file and set the `Master Secret` path to view plaintext data packets. ```shell sudo ecapture tls -m keylog -keylogfile=openssl_keylog.log ``` You can also directly use the `tshark` software for real-time decryption and display: ```shell tshark -o tls.keylog_file:ecapture_masterkey.log -Y http -T fields -e http.file_data -f "port 443" -i eth0 ``` #### Text Mode `sudo ecapture tls -m text` will output all plaintext data packets. (Starting from v0.7.0, it no longer captures SSLKEYLOG information.) ### GoTLS Module Similar to the OpenSSL module. #### gotls command capture tls text context. Step 1: ```shell sudo ecapture gotls --elfpath=/home/cfc4n/go_https_client --hex ``` Step 2: ```shell /home/cfc4n/go_https_client ``` #### more help ```shell sudo ecapture gotls -h ``` ### Other Modules such as `bash\mysqld\postgres` modules, you can use `ecapture -h` to view the list of subcommands. ## Videos * Youtube video: [How to use eCapture v0.1.0](https://www.youtube.com/watch?v=CoDIjEQCvvA "eCapture User Manual") * [eCapture:supports capturing plaintext of Golang TLS/HTTPS traffic](https://medium.com/@cfc4ncs/ecapture-supports-capturing-plaintext-of-golang-tls-https-traffic-f16874048269) ## eCaptureQ GUI Application [eCaptureQ](https://github.com/gojue/ecaptureq) is a cross-platform graphical user interface client for eCapture, visualizing eBPF TLS capture capabilities. Built using the Rust + Tauri + React technology stack, it provides a real-time, responsive interface, enabling easy analysis of encrypted traffic without the need for CA certificates. It simplifies complex eBPF capture techniques, making them easy to use. Supports two modes: * Integrated Mode: Unified Linux/Android execution * Remote Mode: Windows/macOS/Linux client connects to a remote eCapture service ### Event Forwarding [Event Forwarding Projects](https://github.com/gojue/ecapture/blob/HEAD/EVENT_FORWARD.md) ### Video Demonstration https://github.com/user-attachments/assets/c8b7a84d-58eb-4fdb-9843-f775c97bdbfb 🔗 [GitHub Repository](https://github.com/gojue/ecaptureq) ### Protobuf Protocols For details of the Protobuf log schema used by eCapture/eCaptureQ, see: - [protobuf/PROTOCOLS.md](https://github.com/gojue/ecapture/blob/HEAD/protobuf/PROTOCOLS.md) ## Stargazers over time [![Stargazers over time](https://starchart.cc/gojue/ecapture.svg)](https://starchart.cc/gojue/ecapture) # Security & Operations - [**Security Policy**](https://github.com/gojue/ecapture/blob/HEAD/SECURITY.md) — Vulnerability reporting and supported versions - [**Minimum Privileges**](https://github.com/gojue/ecapture/blob/HEAD/docs/minimum-privileges.md) — Required Linux capabilities and least-privilege configuration - [**Defense & Detection**](https://github.com/gojue/ecapture/blob/HEAD/docs/defense-detection.md) — How to detect and defend against unauthorized usage - [**Performance Benchmarks**](https://github.com/gojue/ecapture/blob/HEAD/docs/performance-benchmarks.md) — Overhead measurement methodology and expected characteristics - [**Release Verification**](https://github.com/gojue/ecapture/blob/HEAD/docs/release-verification.md) — How to verify the integrity of release artifacts # Contributing See [CONTRIBUTING](https://github.com/gojue/ecapture/blob/HEAD/CONTRIBUTING.md) for details on submitting patches and the contribution workflow. # Compilation ## Custom Compilation You can customize the features you want, such as setting the offset address for `uprobe` to support statically compiled OpenSSL libraries. Refer to the [compilation guide](https://github.com/gojue/ecapture/blob/HEAD/docs/compilation.md) for compilation instructions. ## Configurations Remote Update After eCapture is running, you can dynamically modify the configurations through HTTP interfaces. Refer to the [HTTP API Documentation](https://github.com/gojue/ecapture/blob/HEAD/docs/remote-config-update-api.md). ## Event Forwarding eCapture supports multiple event forwarding methods. You can forward events to packet capture software such as Burp Suite. For details, refer to the [Event Forwarding API Documentation](https://github.com/gojue/ecapture/blob/HEAD/docs/event-forward-api.md).