registry / Credential exfiltration / @reason-machines/cli-linux-arm64 / 0.2.325

@reason-machines/cli-linux-arm64@0.2.325

Reason CLI native binary for linux-arm64

AI Security Review

scanned 7d ago · by lpm-firewall-ai

The runtime forwards existing third-party provider credentials to the publisher's API by default, without recipient-specific consent. The transfer is concrete credential exposure even though local-login sharing is presented as a product feature.

Static reason

High-risk behavior combination matched malicious policy.; source matched previously finalized malicious package; routed for review

Trigger

Connecting a computer and starting its worker with the local-login setting unset.

Impact

Existing provider credentials are disclosed to a separate service without recipient-specific confirmation.

Mechanism

The runtime reads local OAuth credentials and submits provider tokens in local-subscription requests to Reason's production API.

Attack narrative

On connection, the CLI enables local login sharing when the setting is unset. Its worker reads existing provider OAuth credentials and sends discovered access tokens to Reason's local-subscription endpoint. The feature is documented, but the inspected source does not require recipient-specific confirmation before this default-enabled transfer.

AI rationale

Evidence

bin/vm-hands/vm-hands-entry-lite-bhavrqyw.jsbin/vm-hands/vm-hands-entry-lite-vza704vf.jsbin/vm-hands/vm-hands-entry-lite-t497ewn2.jsbin/vm-hands/vm-hands-entry-lite-wh0qp1gf.js

Network endpoints1

api.reasonmachines.ai

Decision evidence

public snapshot

AI called this Malicious at 91.0% confidence as Malware with low false-positive risk.

Evidence for block

The manifest identifies a Linux ARM64 CLI package and contains no install lifecycle script.
The runtime reads existing provider OAuth credentials from local stores and files.
When the local-login setting is unset, the CLI enables it; worker startup invokes credential handover when it is enabled.
The handover sends each discovered provider token through the local-subscription request.
The request targets the local-subscription API route, and the default production API host is api.reasonmachines.ai.
The CLI describes local provider logins as a feature for Reason Sessions.
The custom endpoint request sends its API credential in an authentication header to the request URL.

Evidence against

Local-login sharing is presented as a product feature, and the recipient is Reason's own API; however, the source shows no recipient-specific confirmation before the default-enabled transfer.

Behavioral surface

Source

ChildProcessCryptoDynamicRequireEnvironmentVarsEval

Source & flagged code

24 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

bin/vm-hands/vm-hands-entry-lite-bhavrqyw.jsView file

Lines 83-123javascript

83`);let K0=g3($,f,{displayVideo:f["display.stream.v1"]===!0&&await N(),handsBrowser:f["hands.connect"]===!0&&q,userChrome:i&&"host"in i?i.host:null,...T===void 0?{}:{githubSignedIn:T},persistentTerminals:f["pty.start"]===!0&&l2(),probing:a});if(!j&&K0.worker.readiness?.["browser.pr-proof.v1"]===!0){let R0=await i6();if(j||D.signal.aborted)return K0;process.stderr.write("error"in R0?`Reason worker: PR video proof unavailable (${R0.error})

84`:`Reason worker: PR video proof ready (ffmpeg ${R0.encoder.ffmpeg.path})

85`),j=n6({assertCurrent:async()=>{if(!k())throw Error("proof_authority_lost")},...!("error"in R0)?{recording:R0}:{}})}return K0},F=await z(M,U?F3.filter((f)=>M[f]!==!0):[]),O=m3($,J,F,j?.capability);X.onStartup?.("inventory_completed");let W=!1,L=0,R=0,x="starting",C=null,P=!1,h=!1,S=null,y,l=()=>!B.drained&&Date.parse(Y)>Date.now()&&O.supported_operations.some((f)=>F.worker.readiness?.[f]===!0),k=()=>!W&&l(),I=null,E=()=>L+(I?.claims()??0),A=null,b=new Set,w=(f)=>{let a=f.capabilities.root_paths;if(Object.assign(f.capabilities,m3(f.config,f.state,F,j?.capability)),a)f.capabilities.root_paths=a ...

bin/vm-hands/vm-hands-entry-lite-psybjyay.jsView file

Lines 1-21javascript

1// @bun

2import{Sh as s}from"./vm-hands-entry-lite-cxs89wzv.js";var mc={};s(mc,{xor:()=>Zl,xid:()=>kl,void:()=>Bl,

bin/vm-hands/vm-hands-entry-lite-mw8pzw3p.jsView file

Lines 285-325javascript

285 // parse top-level await or return. Those programs retain the prior async

286 // block behavior; a syntax failure occurs before any user code executes.

287 if (!statementList || !(error instanceof SyntaxError)) throw error;

288 program =

bin/vm-hands/index-752q9pdp.jsView file

1// @bun L2: import{x as iJ0}from"./vm-hands-entry-lite-9kasrx18.js";import{Ph as NV0,Qh as rn,Rh as EJ,Th as an,Uh as X0}from"./vm-hands-entry-lite-cxs89wzv.js";var on={};var $T;var WT=an(()=>... L3: `)!=-1,q=this._styles,O=q.length;while(O--){var E=G[q[O]];if(A=E.open+A.replace(E.closeRe,E.open)+E.close,R)A=A.replace($,function(D){return E.close+D+E.open})}return A}X.setTheme=... L4: `).join(` L5: `+N),U.push(z+"m+"+Y.exports.humanize(this.diff)+"\x1B[0m")}else U[0]=$()+M+" "+U[0]}function $(){if(Q.inspectOpts.hideDate)return"";return new Date().toISOString()+" "}function W(... L6: `)}function K(U){if(U)process.env.DEBUG=U;else delete process.env.DEBUG}function H(){return process.env.DEBUG}function B(U){U.inspectOpts={};let M=Object.keys(Q.inspectOpts);for(le... ... L8: `:` L9: `,U=B.

Critical

Remote Asset Decode Execute

Source fetches a remote non-code asset, decodes its contents, and dynamically executes the decoded payload.

bin/vm-hands/index-752q9pdp.jsView on unpkg · L1

239`,CHAR_NO_BREAK_SPACE:"\xA0",CHAR_PERCENT:"%",CHAR_PLUS:"+",CHAR_QUESTION_MARK:"?",CHAR_RIGHT_ANGLE_BRACKET:">",CHAR_RIGHT_CURLY_BRACE:"}",CHAR_RIGHT_SQUARE_BRACKET:"]",CHAR_SEMICO... L240: GFS4: `),console.error(A)};if(!X[W]){if(U=global[W]||[],B(X,U),X.close=function(A){function R(q,O){return A.call(X,q,function(E){if(!E)z();if(typeof O==="function")O.apply(this,arg... L241: `:""},this._extScope=S,this._scope=new X.Scope({parent:S}),this._nodes=[new F]}toString(){return this._root.render(this.opts)}name(S){return this._scope.name(S)}scopeName(S){return...

High

Obfuscated Payload Loader

Source contains an obfuscated payload loader that reconstructs and executes hidden code.

bin/vm-hands/index-752q9pdp.jsView on unpkg · L239

bin/vm-hands/vm-hands-executor-dkjevaep.jsView file

1Cross-file remote execution chain: bin/vm-hands/vm-hands-executor-dkjevaep.js spawns bin/vm-hands/vm-hands-entry-lite-fq0zr7an.js; helper contains network access plus dynamic code execution. L1: // @bun L2: import{Ka as Kq,ob as Bq,qa as Yq,sb as Tq}from"./vm-hands-entry-lite-mw8pzw3p.js";import"./vm-hands-entry-lite-fq0zr7an.js";import"./vm-hands-entry-lite-qvrnx0vk.js";import"./vm-h... L3: `).filter(Boolean);B=Z.length;let Q=$.map((T)=>{try{return Number(JSON.parse(T).elapsed_ms)||0}catch{return 0}});if(Q.length)X("vm_hands.srt_server_starts",{count:Q.length,elapsed_... L4: `).filter(Boolean).slice(0,1000);if(!Q.length)return null;let T={},U=0;for(let N of Q)try{let M=JSON.parse(N),F=typeof M.code==="string"&&/^[a-z_]{1,40}$/.test(M.code)?M.code:"othe... L5: `).find((V)=>V.startsWith("0:

High

Cross File Remote Execution Context

Source spawns a local helper that also contains network and dynamic execution context; review data flow before blocking.

bin/vm-hands/vm-hands-executor-dkjevaep.jsView on unpkg · L1

bin/araView file

•path = bin/ara kind = native_binary sizeBytes = 102803600 magicHex = [redacted]

Medium

Ships Native Binary

Package ships native binary artifacts.

bin/araView on unpkg

bin/vm-hands/vm-hands-entry-lite-1nfq4y01.jsView file

•matchType = normalized_sha256 matchedPackage = @reason-machines/cli-linux-arm64@0.2.323 matchedPath = bin/vm-hands/vm-hands-entry-lite-snr2e843.js matchedIdentity = npm:[redacted]:0.2.323 similarity = 1.000 summary = normalized source hash matched finalized malicious source

High