@reason-machines/cli-darwin-arm64@0.2.394: Manual Review npm

AI Security Review

scanned 5d ago · by lpm-firewall-ai

The flagged JavaScript excerpt shows filename and path matching, not agent configuration mutation. The native executable’s behavior remains materially unresolved, so the evidence does not support a malicious verdict or a clean verdict.

Static reason

One or more suspicious static signals were detected.; source matched previously finalized malicious package; routed for review

Trigger

Running the shipped CLI would activate the native executable; its behavior is not established by the available analysis.

Impact

The CLI’s effects cannot be determined from the inspected evidence.

Mechanism

The analysis does not establish whether the sampled embedded code is reachable or whether other native behavior exists.

AI rationale

The flagged JavaScript excerpt shows filename and path matching, not agent configuration mutation. The native executable’s behavior remains materially unresolved, so the evidence does not support a malicious verdict or a clean verdict.

Evidence

.lpm-inspection-bJkP5O/0-966d39869db6.txtbin/reasonbin/runtime/srt/sandbox-runtime.mjs

Decision evidence

public snapshot

AI called this Manual Review at 78.0% confidence as Unknown with medium false-positive risk.

AI review observations

The manifest identifies this as the Darwin ARM64 native CLI package and lists its shipped files.
The flagged JavaScript excerpt lists configuration filenames and paths; it does not show a configuration write.
The offline analysis identifies bin/reason as a Mach-O executable and says its bounded samples cannot establish the behavior of the full binary.

Evidence against

Behavioral surface

Source

ChildProcessCryptoEnvironmentVarsFilesystem

Supply chain

HighEntropyStringsMinifiedPossibleObfuscationUrlStrings

Manifest

NoLicense

scanned 1 file(s), 524 KB of source, external domains: 127.0.0.1

Source & flagged code

6 flagged

bin/runtime/srt/sandbox-runtime.mjsView file

60mux backend dial failed (${H}) L61: `)}),M.on("error",()=>O.destroy()),M.once("close",()=>O.destroy()),O.once("close",()=>M.destroy()),M.pipe(O),O.pipe(M)}let U=$6((M)=>{G.add(M),M.once("close",()=>G.delete(M)),M.on(... L62: `).filter(Boolean);if(F===1)return[];throw Error(`ripgrep failed with exit code ${F}: ${q}`)}import{join as V0,dirname as T6}from"path";import{fileURLToPath as S6}from"url";import*...

High

Child Process

Package source references child process execution.

bin/runtime/srt/sandbox-runtime.mjsView on unpkg · L60

55\r L56: `)}}),J.on("request",async(Q,Y)=>{Q.on("error",(G)=>{Z(`Client request error: ${G.message}`,{level:"error"})}),Y.on("error",(G)=>{Z(`Client response error: ${G.message}`,{level:"er... L57: `)),$.end(eq(W))}function L7($){return Buffer.from([5,$,0,1,0,0,0,0,0,0])}function tq($){return new Promise((J)=>{let X=Buffer.alloc(0),Q=(W)=>{$.off("data",G),clearTimeout(Y),J(W)... ... L60: mux backend dial failed (${H}) L61: `)}),M.on("error",()=>O.destroy()),M.once("close",()=>O.destroy()),O.once("close",()=>M.destroy()),M.pipe(O),O.pipe(M)}let U=$6((M)=>{G.add(M),M.once("close",()=>G.delete(M)),M.on(... L62: `).filter(Boolean);if(F===1)return[];throw Error(`ripgrep failed with exit code ${F}: ${q}`)}import{join as V0,dirname as T6}from"path";import{fileURLToPath as S6}from"url";import*

High

Same File Env Network Execution

A single source file combines environment access, network access, and code or shell execution; review context before blocking.

bin/runtime/srt/sandbox-runtime.mjsView on unpkg · L55

47\r L48: Connection blocked by network allowlist`);return}if(W||Y.destroyed){Y.destroy();return}let P=jJ(j)??j;if($.mitmCA&&($.shouldTerminateTLS?.(P,C)??!0)){Y.write(`HTTP/1.1 200 Connecti... L49: \r ... L55: \r L56: `)}}),J.on("request",async(Q,Y)=>{Q.on("error",(G)=>{Z(`Client request error: ${G.message}`,{level:"error"})}),Y.on("error",(G)=>{Z(`Client response error: ${G.message}`,{level:"er... L57: `)),$.end(eq(W))}function L7($){return Buffer.from([5,$,0,1,0,0,0,0,0,0])}function tq($){return new Promise((J)=>{let X=Buffer.alloc(0),Q=(W)=>{$.off("data",G),clearTimeout(Y),J(W)... ... L60: mux backend dial failed (${H}) L61: `)}),M.on("error",()=>O.destroy()),M.once("close",()=>O.destroy()),O.once("close",()=>M.destroy()),M.pipe(O),O.pipe(M)}let U=$6((M)=>{G.add(M),M.once("close",()

High

Command Output Exfiltration

Source combines command execution, command-output handling, and outbound requests; review data flow before blocking.

bin/runtime/srt/sandbox-runtime.mjsView on unpkg · L47

•matchType = normalized_sha256 matchedPackage = @reason-machines/cli-linux-arm64-musl@0.2.391 matchedPath = bin/runtime/srt/sandbox-runtime.mjs matchedIdentity = npm:[redacted]:0.2.391 similarity = 1.000 summary = normalized source hash matched finalized malicious source

High

Known Malware Source Similarity

Source file is highly similar to a previously finalized malicious package; route for source-aware review.

bin/runtime/srt/sandbox-runtime.mjsView on unpkg

bin/Background/Reason.app/Contents/MacOS/ReasonBackgroundIdentityView file

•path = bin/Background/Reason.[redacted] kind = native_binary sizeBytes = 55504 magicHex = [redacted]

Medium

Ships Native Binary

Package ships native binary artifacts.

bin/Background/Reason.app/Contents/MacOS/ReasonBackgroundIdentityView on unpkg

package.jsonView file

2eason-machines/cli-darwin-arm64", "version": "0.2.394", "description": "Reason CLI native binary for darwin-arm64", "os": [ "darwin" ], "cpu": [ "arm64" ], "files": [ "bin", "README.md", "LICENSE", "THIRD_PARTY_NOTICES.txt" ], "publishConfig": { "access": "public", "provenance": false }, "repository": { "type": "git", "url": "git+https://github.com/reason-machines/monorepo.git" }, "homepage": "https://reasonmachines.com", "bugs": { "email": "contact@reasonmachines.com" }, "license": "SEE LICENSE IN

Low

Ai Review Evidence

The manifest identifies this as the Darwin ARM64 native CLI package and lists its shipped files.

package.jsonView on unpkg · L2

Source & flagged code

6 flagged · loading source

bin/runtime/srt/sandbox-runtime.mjsView file

60mux backend dial failed (${H}) L61: `)}),M.on("error",()=>O.destroy()),M.once("close",()=>O.destroy()),O.once("close",()=>M.destroy()),M.pipe(O),O.pipe(M)}let U=$6((M)=>{G.add(M),M.once("close",()=>G.delete(M)),M.on(... L62: `).filter(Boolean);if(F===1)return[];throw Error(`ripgrep failed with exit code ${F}: ${q}`)}import{join as V0,dirname as T6}from"path";import{fileURLToPath as S6}from"url";import*...

High

Child Process

Package source references child process execution.

bin/runtime/srt/sandbox-runtime.mjsView on unpkg · L60

55\r L56: `)}}),J.on("request",async(Q,Y)=>{Q.on("error",(G)=>{Z(`Client request error: ${G.message}`,{level:"error"})}),Y.on("error",(G)=>{Z(`Client response error: ${G.message}`,{level:"er... L57: `)),$.end(eq(W))}function L7($){return Buffer.from([5,$,0,1,0,0,0,0,0,0])}function tq($){return new Promise((J)=>{let X=Buffer.alloc(0),Q=(W)=>{$.off("data",G),clearTimeout(Y),J(W)... ... L60: mux backend dial failed (${H}) L61: `)}),M.on("error",()=>O.destroy()),M.once("close",()=>O.destroy()),O.once("close",()=>M.destroy()),M.pipe(O),O.pipe(M)}let U=$6((M)=>{G.add(M),M.once("close",()=>G.delete(M)),M.on(... L62: `).filter(Boolean);if(F===1)return[];throw Error(`ripgrep failed with exit code ${F}: ${q}`)}import{join as V0,dirname as T6}from"path";import{fileURLToPath as S6}from"url";import*

High

Same File Env Network Execution

A single source file combines environment access, network access, and code or shell execution; review context before blocking.

Findings

4 High3 Medium5 Low

HighChild Processbin/runtime/srt/sandbox-runtime.mjs

HighSame File Env Network Executionbin/runtime/srt/sandbox-runtime.mjs

HighCommand Output Exfiltrationbin/runtime/srt/sandbox-runtime.mjs

HighKnown Malware Source Similaritybin/runtime/srt/sandbox-runtime.mjs

MediumEnvironment Vars

MediumShips Native Binarybin/Background/Reason.app/Contents/MacOS/ReasonBackgroundIdentity

MediumStructural Risk Force Deep Review

LowFilesystem

LowHigh Entropy Strings

LowUrl Strings

LowNo License

LowAi Review Evidencepackage.json

AI Security Review

Decision evidence

Source & flagged code

Source & flagged code

Findings

Affected versions and remediation

Related packages

More from @reason-machines

Behavioral surface

Related packages

More from @reason-machines

Source & flagged code