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reverse-engineering-anything/README_zh.md
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e4d3e1399d feat(flutter): identify Dart snapshot builds and inspect AOT payloads by pure APK parsing (#1582)
* feat(flutter): identify Dart snapshot builds by pure APK parsing

Add a flutter-provider family with one operation, identify_flutter_build,
that reads an APK's lib/<abi>/libapp.so and libflutter.so through the
hardened ZIP reader and reports build facts as observations:

- The Dart VM snapshot hash, read 20 bytes after every snapshot magic
  (f5f5dcdc). The vm and isolate sections are cross-checked: agreeing
  sections collapse to one snapshot_hash, disagreeing sections keep every
  candidate with snapshot_hash null and partial coverage.
- Per-ABI library digests and byte sizes, plus the engine library's GNU
  build-id note and any labeled 'Dart VM version' or Android clang/LLVM
  toolchain strings, verbatim; release builds without a version string
  report null rather than a guess.
- The APK is digested before parsing so Evidence binds the observation to
  the exact input, and a target with no libapp.so reports not-detected
  with complete coverage.

The scanner is streaming with explicit pending-magic and rescan
bookkeeping, so chunk boundaries cannot double-count or drop sections, and
magic-free streams never accumulate. No engine, no external lookups: the
hash-to-SDK mapping stays with external datasets by design.

Verified against Flutter Gallery 2.9.2 (112 MB, three ABIs): every ABI
reports the same agreeing hash 65817c30a78bb44c3dc3771876b6010a from two
sections, per-ABI build-ids, and the clang toolchain line; a plain
aapt2-built APK reports not-detected with complete coverage. Scanner
goldens come from the same libraries. READMEs carry the new 'Flutter apps'
row in every supported language.

* feat(flutter): inspect Dart AOT snapshots through the ELF symbol table

Add inspect_dart_aot to the flutter family: for one ABI's libapp.so it
locates the four _kDart*Snapshot* symbols through the ELF dynamic symbol
table (ELF32 and ELF64 little-endian, bounds-checked reads; a payload
without exported symbols is refused), reports each section's offset and
size, validates data-section headers (magic, kind, length; instructions
sections honestly report nulls for the fields their layout does not
carry), and projects a bounded string pool from the isolate data section:
distinct package: source URIs (the app's dependency inventory), dart: SDK
URIs, and identifier-shaped tokens, each with counts, bounds, and partial
coverage when truncated.

The string pool is labeled as a byte-pattern projection, not deserialized
cluster semantics: typed class and function recovery remains an
SDK-specific parser, which the snapshot hash now unlocks. The ABI is
caller-selected with a deterministic default (arm64-v8a, x86_64, then
first available).

Verified against Flutter Gallery 2.9.2: all four symbols on both ELF64
(arm64-v8a) and ELF32 (armeabi-v7a) images, header validation, hash
agreement with identify_flutter_build, and a 756 package: / 201 dart:
URI pool from the isolate data section; goldens in DartElf.test.ts come
from the same libraries.

* fix(flutter): own snapshots, bound image reads, and preserve cancellation

Mirror the ownership bar the maintainers applied across the merged JEB,
ADB, and Apktool PRs:

- Copy the admitted APK into a provider-owned, read-only snapshot (EXCL
  create, chmod 0400) before digesting and parsing; every later read uses
  the snapshot, so a concurrently modified original cannot mix into one
  observation. The result reports the snapshot's byte size and digest.
- Retain failed snapshot-root cleanup in a provider set and retry it on
  close(), throwing an aggregate error when a root is still owned; root
  removal is injectable so the retention is testable.
- Allocate the AOT image buffer at exactly the declared library size
  before reading (bounded before allocation, not concat-after-stream),
  keep the 256 MiB ceiling, and check cancellation between digest and
  stream chunks through a captured abort reason.
- Accept APK paths containing spaces (covered by a fixture test) and
  escape the ABI pattern's dash for v-mode regex compatibility.

Also add tests for cleanup retention with close retry and for
cancellation before any snapshot root is created.

* docs(flutter): cover the Italian README with the Flutter row

The Italian translation landed between the merged feature PRs; its table
now carries every merged row plus this one, keeping its documentation-link
set identical to README.md.

* fix(flutter): make the ABI pattern portable for v-mode validators

Use a hex-escaped hyphen in the ABI character class, matching the form
the ADB portability fix uses, so clients compiling advertised schemas in
unicodeSets mode accept the inspect_dart_aot input schema.

* refactor(flutter): reuse shared harnesses and deduplicate the vertical

The duplicate-detection gate (jscpd, 2.5% threshold) tipped to 2.51% with
the flutter files added. Reuse the existing machinery instead of repeating
it:

- FlutterBuildAnalysisService delegates to executeProviderOperation, the
  shared admission/Evidence composition, instead of restating its body.
- The CLI registers both commands from one table-driven spec.
- Boundary tests use the shared serveCli and assertAdvertisedMcpContracts
  harnesses rather than hand-rolled equivalents.
- The provider test consolidates the four payload-shape cases into one
  table-driven case; the service test uses one admission table and
  distinct phrasings.

Duplicate lines fall from 2.51% to 2.48%, back under the gate.

* fix(flutter): address review findings from real-app verification

CassieFox23 verified the PR against three real F-Droid Flutter apps and
a control app, and found five gaps. All are fixed and re-verified against
cone (info.tangential.cone), one of the tested apps:

- Build-id: the scanner now reads the descriptor length from the note
  header instead of assuming 20 bytes, so 8-byte ids from older
  toolchains parse; the schema accepts 8-128 hex characters. Verified
  against cone's readelf-reported ids on all three ABIs.
- Compiler line: the toolchain capture bound rises from 200 to 500
  characters, keeping cone's 262-character clang line verbatim.
- Zero-byte libapp.so: the extraction target is created before streaming,
  so an empty entry yields a clean unsupported_target refusal for
  inspect_dart_aot and elf_header_valid: false with partial coverage for
  identify_flutter_build, instead of a raw ENOENT with code UNKNOWN.
- Truncated library: identify_flutter_build marks fewer than two snapshot
  sections as partial coverage with a limitation naming the count, and a
  missing ELF magic gets its own limitation.
- Docs: the default ABI preference now matches the code exactly
  (arm64-v8a, x86_64, x86, armeabi-v7a, then the rest alphabetically).

Also: every test that read the author's /tmp/opencode goldens now builds
a self-contained synthetic ELF64 image with dynsym, four snapshot
symbols, two snapshot sections, and a string pool, so the suite runs
anywhere; the verify lane now requires a present hex build-id per ABI
instead of accepting null.

* fix(flutter): address the Codex review findings

Eight findings, all applied:

- P1: SnapshotHashScanner keeps candidates in a Set (no quadratic
  Array.includes) with a 64-distinct-hash cap, so a hostile payload of
  magic+hash records cannot stall the scan or bloat the response.
- P1: projectStringPool stops admitting new distinct entries once each
  category reaches twice its projection bound and reports
  collectionCapped; allocation and sorting now track the response, not
  the payload.
- P2: ZIP reader rejections during entry iteration or entry streaming
  map into the typed error algebra (cancellation vs input refusal)
  instead of escaping as unhandled exceptions in both operations.
- P2: magic_valid now marks coverage only for the *Data symbols; a
  complete four-symbol image with valid data magics reports complete
  coverage (the instruction symbols intentionally lack the magic).
- P2: the MCP server closes the Flutter provider during shutdown, so a
  retained snapshot root is retried and reported, not leaked.
- P2: LabeledStringScanner commits matches only when a printable run is
  delimiter-terminated; the carry grows to 600 bytes so a 500-character
  toolchain line survives any chunk boundary untruncated.
- P2: both Flutter tool effects declare writesFilesystem: true; the
  owned APK snapshot and extracted libapp.so are temporary writes.
- P2: the verify lane asserts every ABI agrees on exactly one snapshot
  hash instead of discarding the computed set.

* fix(flutter): address the second Codex review round

Nine findings on the first-round fixes:

- P1: identify_flutter_build enforces a cumulative extraction budget
  (768 MiB) across every library entry, not just per library, so an APK
  with many ABIs cannot stream an unbounded total.
- P1: a single NUL-free printable run stops materializing at 1024 bytes
  and marks the pool capped, so an adversarial one-run section cannot
  allocate unbounded strings.
- P1: ELF cString bounds the NUL-terminator scan to the name maximum
  plus one, so malformed symbol tables cannot scan the whole image per
  entry.
- P2: mapReaderFailure distinguishes ArtifactReaderFailure texts —
  budget/limit rejections map to resource constraints, integrity
  failures (CRC/overlap/signature) to their own input refusal — instead
  of collapsing all reader failures into one message.
- P2: the labeled-string carry is cleared when a delimiter commits a
  run, so consecutive toolchain lines are never concatenated.
- P2: string-pool counts are renamed *_count_at_least and documented as
  lower bounds, because capped collection discards values beyond twice
  the projection bound.
- P2: inspect_dart_aot marks hash disagreements, non-pair source counts,
  and candidate-cap saturation as partial coverage.
- P2: only valid lowercase-hex hash records count as snapshot sources;
  complete magic records with non-hex fields do not inflate agreement.
- P2: the per-entry size refusal in inspect_dart_aot moves after ABI
  selection, so an oversized unselected ABI no longer refuses a small
  request.

* fix(flutter): address the third Codex review round

Five findings:

- P2: the owned snapshot revalidates the source after the copy (size,
  mtime, inode), so an in-place replacement or swap mid-copy refuses
  the observation instead of publishing mixed bytes.
- P2: a failed ZipArtifactReader close retains the snapshot root for
  close() retry instead of silently swallowing the descriptor leak,
  in both operations.
- P2: snapshot headers are parsed within their symbol bounds and a
  symbol smaller than the 16-byte header reports magic_valid false,
  so trailing-image bytes can no longer fake a valid data section.
- P2: the verify lane counts provider.close() cleanup failures as
  lane failures instead of certifying a run with retained roots.
- P2: LabeledStringScanner reports toolchain_capped when further
  distinct matching lines are observed past the 4-line projection;
  identify marks such results partial with a naming limitation.

* fix(flutter): address rounds three and four of the Codex review

Round three (one missed finding) plus round four (five findings):

- P2: the GNU build-id note descriptor size is decoded from all four
  bytes of the little-endian field, rejecting nonzero high bytes
  instead of masking them to 16 bits.
- P1: the Flutter MCP handlers route through createContractToolHandler
  and the session's analysisAdmission, so close_binary and snapshot
  operations drain in-flight Flutter calls instead of racing them.
- P2: the owned-snapshot copy is a streamed, abort-checked write (no
  copyFile), so cancellation stops the write promptly while the
  source-identity revalidation (size, mtime, inode) still guards
  against mid-copy replacement.
- P2: identify marks any snapshot_hash_sources value other than exactly
  two as partial, matching the inspection path's pair requirement.
- P2: the verify lane refuses to run without --apk (exit 2) instead of
  printing a false-green pass, and the engine check requires every
  libapp-carrying ABI to have a present libflutter with a valid hex
  build-id rather than filtering missing engines away vacuously.

* fix(flutter): address the fifth Codex review round

Six findings plus the upstream duplication baseline:

- P2: the flutter-provider kind reports available in the capability
  inventory, so binary_session no longer lists always-registered
  Flutter tools as provider_missing.
- P2: printable runs that exceed the 1024-byte cap are discarded at
  their delimiter instead of emitting their truncated prefix as a
  fabricated observation.
- P2: ELF symbols must fit inside the file-backed portion of their
  PT_LOAD segment (p_filesz), so addresses in gaps or BSS are refused
  instead of accepting unrelated bytes.
- P2: the build-id carry spans the complete 80-byte maximum note
  (16-byte header + 64-byte descriptor) so chunk-boundary splits
  cannot drop the first byte.
- P2: the labeled-string carry is sized for the toolchain pattern's
  true 605-byte maximum, not the previous 600.
- P2: the AOT completeness predicate requires exactly two sources and
  one candidate unconditionally, so zero-source images with valid data
  magics report partial instead of complete.

Also: the shared ELF fixture builder and snapshot-section helper moved
to a dedicated FlutterTestFixtures module, eliminating cross-file test
duplication; jscpd now passes at 2.50% while main sits at 2.52%.

* fix(flutter): address the sixth Codex review round

Five findings:

- P2: snapshot-hash scanning is bounded to the exported data symbols'
  byte ranges, so decoy or stale magic/hash sequences elsewhere in the
  image cannot inflate source counts or contribute candidates.
- P2: labeled-string runs longer than the carry bound are rejected
  instead of truncated, preventing a regex prefix from being published
  as a verbatim source string.
- P2: the AOT image reread checks cancellation between file reads and
  before the synchronous parsing stage, so a cancelled caller cannot
  receive a success from a completed 256 MiB read.
- P2: the verify lane requires exactly two snapshot sources per ABI,
  matching the provider's pair requirement, instead of accepting any
  count >= 2.
- P2: ELF section and program header entry sizes are validated against
  the class-defined minimum widths before walking either table, so
  undersized entries cannot cause field reads to cross into
  neighboring bytes.

* fix(flutter): address the seventh Codex review round

Six findings:

- P2: data-symbol ranges are deduplicated by offset and size, so aliased
  symbols mapping to the same bytes are scanned once and the result
  marks partial coverage with a limitation naming the shared range.
- P2: openEntrySafely forwards return/throw to the underlying Readable's
  iterator, so an early for-await exit closes the ZIP entry stream and
  releases its producer instead of leaking a backpressured pipe.
- P2: inspect_dart_aot now reports snapshot_hash_candidates and
  snapshot_hash_sources alongside snapshot_hash, so a null hash from
  conflicting evidence is distinguishable from missing hash data.
- P2: overlong printable runs only set toolchain_capped when they begin
  with a recognized label prefix (Dart VM version: or Android (); other
  long strings such as license text are skipped without marking partial.
- P2: readElfSymbol falls back to PT_DYNAMIC/DT_SYMTAB when section
  headers are absent (e_shnum 0, ET_DYN), so stripped Flutter libraries
  with exported snapshot symbols are no longer refused; the dynamic
  table is bounded by DT_STRSZ, DT_SYMENT, and the image end.
- P2: the verify lane exercises inspect_dart_aot for every ABI carrying
  libapp.so, not just the preferred default.

* fix(flutter): address the eighth Codex review round

Five findings:

- P2: each data-symbol range gets a fresh SnapshotHashScanner so the
  carry from one noncontiguous slice cannot fabricate a record spanning
  into the next; results are aggregated after scanning.
- P2: dynsym name lookups are bounded to the linked string table —
  st_name offsets outside the table and terminators beyond it are
  rejected instead of reading unrelated payload bytes as symbol names,
  in both the section-header and PT_DYNAMIC paths.
- P2: identify_flutter_build routes its reader.entries and reader.open
  calls through the same collectEntriesSafely and openEntrySafely
  wrappers as inspect_dart_aot, so malformed ZIPs surface as input
  refusals instead of AnalysisProtocolError.
- P2: mapReaderFailure recognizes ArtifactReaderFailure texts carrying
  a cancelled reason, mapping them to AnalysisCancelledError instead
  of AnalysisInputError.
- P2: the cumulative extraction cap is enforced inside the chunk loop,
  not after each library completes, so refusal happens before the
  remaining bytes are streamed and hashed.

* fix(flutter): harden streaming, sizes, and cancellation after self-review

Four issues found in a systematic self-audit across all bug classes
from eight Codex rounds:

- createReadStream in both the digest function and the owned-snapshot
  copy now receives the AbortSignal directly, so cancellation aborts
  the filesystem read at the source instead of waiting for the next
  chunk to arrive on a slow filesystem.
- The owned snapshot enforces a 2 GiB APK-level size cap before any
  copy I/O, so a path pointing at an enormous file is refused before
  disk usage grows.
- identify_flutter_build preflights the sum of declared entry sizes
  against the 768 MiB cumulative budget, refusing before any ZIP
  extraction when the declared total already exceeds it.
- The LabeledStringScanner triple result() call is collapsed to a
  single invocation (the previous code called result() three times in
  the emission, relying on end() being idempotent).

No behavior change for valid inputs; all 36 tests, check:fast, and
the cone verify lane pass unchanged.

* fix(flutter): require structurally parseable ELF headers for complete coverage

CassieFox23's third corrupt-header case: an ELF with valid magic but
zeroed section/program header offsets passes the 4-byte magic check
and the byte scanner still finds hash patterns in the data sections,
so identify_flutter_build reports complete coverage for a structurally
broken file.

The elf_header_valid check now also verifies beyond the magic:
e_type must be a known value (ET_REL/ET_EXEC/ET_DYN), at least one
of e_shoff/e_phoff must be non-zero, and at least one of
e_shnum/e_phnum must be non-zero. A file with valid magic but zeroed
structure reports partial coverage with the existing ELF-magic
limitation.

* fix(flutter): validate ELF and snapshot coverage

Share bounded ELF header parsing between identification and inspection. Accumulate headers across ZIP chunks and validate table entry widths and extents before claiming complete identification coverage.

Bind AOT hashes to the exported VM and isolate headers, validate stored snapshot lengths including the magic bytes, and preserve partial evidence for missing, malformed, aliased, or overlapping data headers.

Preserve native stream cancellations and APK resource constraints across both operations. Bound snapshot copies while streaming and retain useful input-failure diagnostics and lower-bound count wording.

Validation: 72 focused tests; check:fast; check including formatting; docs:check; test discovery; jscpd; real cone APK and non-Flutter control on Linux. Verified CLI/MCP parity for valid and corrupted ELF headers and AOT inspection across three ABIs. Native Windows and macOS were not run.

* fix(flutter): unify artifact ownership and bound ELF evidence

* fix(flutter): preserve ELF provenance and partial coverage

Read GNU build IDs only from bounded ELF note ranges and retain conflicting candidates. Preserve source versus owned storage failures and honor cancellation through parsing and final cleanup.

Separate snapshot structure from string-pool coverage. Verify every Gallery ABI with digest-bound engine labels and URI counts, and document the supported snapshot-kind layout.

---------

Co-authored-by: REA Contributor <contributor@rea.tools>
Co-authored-by: morluto <76467478+morluto@users.noreply.github.com>
2026-10-12 22:35:55 +08:00

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REA:逆向一切

通过一个 MCP 服务,逆向分析二进制文件、应用程序和运行时行为。

看到喜欢的功能,弄清它的工作原理,深入到二进制层面。

npm version MCP tool catalog Node.js requirements skills.sh MIT license Discord

morluto%2Frea | Trendshift

网站 · 指南 · 案例

快速开始 · REA 的工作原理 · 可以分析什么 · 案例 · 常见问题 · 文档

npx rea-agents setup


REA 在 Hopper 中启动分析桥,检查原生二进制文件



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Discord · 问答 · 成果分享


在应用中看到一个想加入自己产品的功能?让智能体用 REA 调查它。即使没有源代码,智能体也可以检查应用、解释功能的工作方式、展示证据,并为你的项目实现类似功能。

REA 将智能体连接到分析工具,用于检查原生二进制文件、JavaScript 和 Electron 应用、.NET 程序集以及网站。你也可以在终端中使用同样的工具。分析在本机运行,结果包含支撑各项结论的证据和相关限制。

设置流程会向智能体注册 REA,并安装匹配的工作流指引。原生分析可以使用已有的 Hopper 或 Ghidra;设置流程也可以在你批准后安装 Hopper。静态 JavaScript 分析不需要这两个引擎。

访问 REA 网站,查看设置说明、图解指南和真实案例。

快速开始

设置智能体

安装 Node.js 和 npm 后,运行:

npx rea-agents setup

选择智能体,检查计划中的变更并批准。设置流程会添加 REA 的 MCP 服务和匹配的工作流指引,并备份已有配置。完成后重启智能体。

设置流程支持 Claude Code、Codex、Cursor、Gemini CLI、Grok Build 和其他智能体。提供方配置和手动注册 MCP 的方法见安装与设置。

询问智能体

弄清 Notes 应用的搜索功能如何工作,展示证据,并为我的项目实现类似功能。

把 Notes 替换为目标应用,并描述你想了解的功能。

使用终端

检查已解包的 JavaScript/Electron 应用目录或 ASAR 文件:

npx -y rea-agents@latest analyze-javascript-application /absolute/path/to/app --json

结果包含模块、导入、Electron 边界及相关证据。将路径替换为你的目标路径,例如 Windows 上的 "D:/apps/example"。

如果需要经常使用,可以安装 rea 命令:

npm install --global rea-agents
rea --help

原生分析需要先配置分析提供方。原生命令、提供方选择、快照和脚本用法见 CLI 与 Evidence 指南。

更新 REA

REA 更新较快,新版本经常包含错误修复。请保持安装的版本为最新。

通过 npm 安装的 CLI 使用:

rea update

要更新智能体注册和 skill,请运行更新命令输出的设置命令。

如果使用 npx,通过以下命令更新智能体设置:

npx rea-agents@latest setup

检查设置变更并重启智能体。单次 CLI 操作可使用 npx rea-agents@latest,后接所需命令。

REA 的工作原理

智能体通过 MCP 调用 REA,检查目标并追踪相关代码。REA 返回发现及对应证据。智能体据此提出后续问题、解释行为,或编写并测试实现。CLI 命令使用同样的工作流。

REA 调查流程:智能体询问本地目标的行为,REA 使用分析工具检查和追踪目标,智能体再利用返回的代码、引用和未知项进行解释、实现与测试。

打开完整尺寸的图示。

可以分析什么

REA 需要 Node.js 22.x(>=22.19)、24.x(>=24.11)或 26+,以及 npm。额外工具和主机支持取决于分析目标:

目标 REA 返回的内容 要求与指南
原生二进制文件 伪代码、汇编、字符串、符号、调用和引用 Hopper、Ghidra 或 IDA;原生分析
离线 ELF 布局 节、段、原始符号/重定位信息及静态防护机制候选项 Linux x64 上由调用方提供的 pwntools;二进制诊断
EVM 字节码 分派选择器、字节偏移、推断的参数和状态可变性 Linux x64 上的本地原始字节/十六进制输入载体;离线 EVM 指南
已记录的 Linux 崩溃 原始 note 记录、每个已记录线程的寄存器/信号及可选的映射候选项 Linux x64 上由调用方提供的 pwntools;可选的 GDB/pwndbg;已记录崩溃
JavaScript / Electron 模块、导入、source map、路由、IPC 和原生扩展关系 Node.js 和 npm;应用分析
网站 页面结构、脚本、网络观察结果和按请求获取的截图 Chrome 系浏览器;浏览器分析
已保存的网络捕获 请求、响应、可访问的载荷和来源位置 HAR;原生 mitmproxy 捕获需要 Linux 上的 mitmdump;捕获指南
.NET 程序集 元数据、CIL 指令、声明的原生依赖和构建对比 静态检查;托管代码指南
Android APK 清单声明、类、反编译的方法和引用 Linux/macOS/Windows x64 上的无界面 JADX 和完整 JDK;Android 指南
Android 设备 设备、软件包、进程、日志、转储、屏幕截图以及 APK/文件传输 调用方提供的 adb(模拟器或实体设备);ADB 指南
JEB 项目 引擎支持的项目单元、工件摘要和类型/方法的伪代码 由调用方启动、提供 MCP 的 JEB 客户端,通过 REA_JEB_MCP_URL 选择;JEB 指南
Android 资源 解码后的清单、字符串表、语言区域和版本信息 调用方提供的 Apktool 启动器;资源指南
Flutter 应用 Dart 快照哈希、按 ABI 的库摘要及引擎构建溯源 无(静态 APK 解析);Flutter 指南
固件 区域、提取结果和转交原生分析的内容 Linux 上的 Binwalk / Unblob;固件指南
软件包与资源 文件清单、摘要、plist、Apple bundle 结构和提取的资源 制品与 JavaScript 指南、Apple 应用
进程行为 终端输出、交互、退出和文件系统观察结果,以及运行对比 支持原生 PTY 的 Linux/macOS;进程捕获

静态 JavaScript 和 .NET 检查读取提供的文件,不运行应用。运行时捕获会以你的用户权限运行目标或与之交互;各运行时指南说明了具体影响。

不同提供方支持的原生格式和主机系统有所不同。请参阅 Hopper 与 Ghidra 设置、IDA 指南和实验性 Windows Ghidra 支持。Ghidra 也支持 16 位 DOS 分析。提供方选择见 CLI 指南。对于最新 npm 版本发布后新增的功能,请查看发布可用性。

案例

DX-Ball 声音平移、Notion 剪贴板桥接与 TH04 弹幕环案例的插图

DX-Ball:重建声像计算

沿声音调用追踪到根据位置计算声像的辅助函数,检查指令,将不完整的伪代码转为 C。重建结果通过了 3,205 个原始 x86 测试用例,并复现了编译后函数的全部 63 个字节。

阅读案例 · 重建项目仓库

Notion:追踪 Electron 剪贴板桥

找到渲染进程的剪贴板 API,沿 preload 和 IPC 追踪到主进程,并检查富格式剪贴板数据。

阅读案例

TH04:恢复 DOS 环形子弹的计算

检查原始 PC-98 游戏的 16 位指令,恢复固定角度和瞄准角度的计算,并将重建的 C++ 与当年的编译器输出进行对比。

阅读案例 · 重建项目仓库

如果你用 REA 分析了有趣的目标,我们很想了解。欢迎通过 issue 或 pull request 分享案例,说明目标、你的问题、REA 如何提供帮助,以及你的发现。

常见问题

哪些智能体可以使用 REA?

任何支持本地 MCP 服务的智能体都可以使用。设置流程会配置受支持的智能体;其他客户端可通过手动注册 MCP 使用。

需要 Hopper、Ghidra 或 IDA 吗?

深入的原生分析需要其中一个引擎。静态 JavaScript 和 .NET 检查不需要原生分析引擎。设置流程可以在你批准后安装 Hopper;Ghidra 和 IDA 则使用已有安装。见提供方设置。

需要先启动 Hopper 吗?

REA 会在操作需要时启动 Hopper。在 macOS 上,首次运行时可能会出现对话框,让你选择演示模式或激活许可证。见 Hopper 启动与故障排查。

从 skills.sh 安装 skill 有什么作用?

skill 为智能体提供调查指引。使用 npx rea-agents setup 注册 REA 的 MCP 服务并安装匹配的指引,然后重启智能体。见仅安装 skill。

REA 返回什么代码?

原生分析返回伪代码和汇编。JavaScript/Electron 分析恢复模块及其关系。智能体利用这些发现编写并测试实现;案例提供了完整示例。

REA 会上传我的应用吗?

REA 在本机分析目标。智能体会接收工具结果,其模型提供商有自己的数据政策。

遇到错误时该怎么办?

先更新;最近的版本可能已经修复了问题。

通过 npm 安装的 CLI 使用:

rea update

通过 npx 设置智能体时使用:

npx rea-agents@latest setup

如果正在使用智能体,请完成设置更新并重启智能体。重试同一任务。如果问题仍然存在,请提交 issue,附上 REA 版本、目标类型、复现步骤和错误输出。

文档

可以先阅读网站上的实操指南。具体选项、前提条件和结果契约见:

请按照 SECURITY.md 报告漏洞。

Star 历史

🎉 GitHub Star 达到 110,000 个,感谢大家!

感谢每一位使用 REA、报告错误、提出功能需求、测试构建和贡献修复的朋友。

REA 的 GitHub Star 历史

免责声明

负责任使用的相关指引请见 DISCLAIMER.md。

REA 用于合法的研究、教育、互操作性、软件保存,以及分析你拥有或获准检查的软件。

本项目对非法或未经授权使用的立场涵盖所有 REA 版本、分发渠道和运行平台; 每份副本仍适用其随附的许可。

参与贡献

欢迎帮助改进 REA!你可以提交 issue 报告错误或建议功能,也可以提交 pull request 改进代码或文档。

开发设置和检查见 CONTRIBUTING.md,验证流程见测试指南,项目结构见架构图。

许可证

MIT

REA 自行编写的代码采用 MIT 许可;第三方内容保留各自的许可和著作权声明。 依赖清单、许可原文及外部工具条款见第三方声明。

用户须自行合法取得商用工具及所需使用权,包括 IDA Pro / Hex-Rays 反编译器、 Hopper 和 JEB,并遵守各自许可。REA 不提供工具许可、密钥或激活权利;试用版和 演示版也须遵守厂商对用户、功能、自动化及输出分享的限制。不得使用破解副本、 窃取或违规共用密钥,也不得绕过许可限制。本指引不变更 MIT 或第三方许可。