mega-code-dev@0.5.2

Mega Code CLI - corporate SSO login for Claude Code (dev environment)

AI Security Review

scanned 3d ago · by lpm-firewall-ai

The automatic install-time modification of Claude Code's user plugin environment leaves a concrete residual risk, so a warning is warranted. The inspected source does not establish a broader control-surface attack or credential theft.

Static reason

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

Trigger

Installing the package when Claude Code is already available and MEGA_CODE_SKIP_PLUGINS is not set.

Impact

Unrequested plugins may become available to the user's Claude Code environment. The inspected source does not establish what those plugins do.

Mechanism

The postinstall script invokes Claude Code to add marketplaces and install plugins with user scope; the package does not require affirmative consent for this step.

AI rationale

Evidence

package.jsonscripts/postinstall.mjsClaude Code user plugin configuration

Network endpoints2

github.com/FarhanRiuzaki/Mega-SDD.gitgithub.com/obra/superpowers.git

Decision evidence

public snapshot

AI called this Suspicious at 84.0% confidence as Dangerous Capability with medium false-positive risk.

Evidence for warning

The package runs scripts/postinstall.mjs automatically after installation.
The postinstall script can add GitHub marketplaces and install plugins in Claude Code user scope when the CLI is present; skipping this requires an environment opt-out.
The runtime also writes Claude Code settings during login, a separate user-invoked path.

Evidence against

The postinstall script skips plugin setup when MEGA_CODE_SKIP_PLUGINS is set and proceeds only when the Claude CLI is available.
The inspected plugin setup installs named plugins from configurable marketplace sources; the source does not establish credential theft or another concrete attack.

Behavioral surface

Source

ChildProcessEnvironmentVarsFilesystemNetworkShell

Supply chain

HighEntropyStringsMinifiedPossibleObfuscationUrlStrings

Manifest

Source & flagged code

9 flagged

package.jsonView file

Lines 1-25json

2 "name": "mega-code-dev",

3 "version": "0.5.2",

4 "description": "Mega Code CLI - corporate SSO login for Claude Code (dev environment)",

5 "license": "UNLICENSED",

6 "type": "module",

7 "bin": {

8 "mega-code-dev": "dist/bin/bf.js"

9 },

10 "files": [

11 "dist",

12 "scripts"

13 ],

14 "scripts": {

15 "build": "node -e \"fs.rmSync('dist',{recursive:true,force:true})\" && tsc -p tsconfig.json",

16 "prepublishOnly": "npm run build",

17 "postinstall": "node scripts/postinstall.mjs",

High

Install Time Lifecycle Scripts

Package defines install-time lifecycle scripts.

package.jsonView on unpkg · L17

Medium

Ambiguous Install Lifecycle Script

Install-time lifecycle script is not statically allowlisted and needs review.

package.jsonView on unpkg · L17

18 "dev": "tsx src/bin/bf.ts",

19 "test": "vitest run"

20 },

21 "engines": {

22 "node": ">=20"

23 }

24}

dist/bin/bf.jsView file

14(Did you mean one of ${n.join(", ")}?)`:n.length===1?` L15: (Did you mean ${n[0]}?)`:""}An.suggestSimilar=Sa});var Ln=y(Ft=>{var Aa=se("node:events").EventEmitter,yt=se("node:child_process"),ye=se("node:path"),_0=se("node:fs"),L=se("node:pr... L16: - specify the name in Command constructor or using .name()`);return t=t||{},t.isDefault&&(this._defaultCommandName=e._name),(t.noHelp||t.hidden)&&(e._hidden=!0),this._registerComma...

High

Child Process

Package source references child process execution.

dist/bin/bf.jsView on unpkg · L14

38\v\f\r\x1B !"#\xA5%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_\`abcdefghijklmnopqrstuvwxyz{|}\u203E\x7F\uFFFD\uFFFD\uFFFD\uFFFD\uFFFD\uFFFD\uFFFD\u... L39: \v\f\r\x1B !"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\xA5]^_\`abcdefghijklmnopqrstuvwxyz{|}\u203E\x7F\uFFFD\uFFFD\uFFFD\uFFFD\uFFFD\uFFFD\uFFFD\uF... L40: `).flatMap(t=>(0,_i.default)(t,e,{trim:!1,hard:!0}).split(` ... L50: at ${R}`)}let[I,_]=typeof w=="string"?[w]:w;c.render(I,_),Te.run()}catch(w){d(w)}}),Object.assign(l.then(w=>(Te.clearAll(),w),w=>{throw Te.clearAll(),w}).finally(()=>{o.forEach(w=>... L51: `).trimEnd()}${Je}`});var Ls=re(Ki(),1),fn=re(Ts(),1);import{spawn as px,spawnSync as Dx}from"child_process";import{readFileSync as mx,unlinkSync as gx,writeFi

High

Same File Env Network Execution

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

dist/bin/bf.jsView on unpkg · L38

38\v\f\r\x1B !"#\xA5%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_\`abcdefghijklmnopqrstuvwxyz{|}\u203E\x7F\uFFFD\uFFFD\uFFFD\uFFFD\uFFFD\uFFFD\uFFFD\u... L39: \v\f\r\x1B !"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\xA5]^_\`abcdefghijklmnopqrstuvwxyz{|}\u203E\x7F\uFFFD\uFFFD\uFFFD\uFFFD\uFFFD\uFFFD\uFFFD\uF... L40: `).flatMap(t=>(0,_i.default)(t,e,{trim:!1,hard:!0}).split(` ... L43: `)),x=o.reduce((h,m)=>h+m.length,0),u=h=>o[h]??[],c=go({active:e,renderedItems:o,pageSize:n,loop:i}),l=u(e).slice(0,n),f=c+l.length<=n?c:n-l.length,d=Array.from({length:n});d.splic... L44: `)}var Ii=re(Bi(),1);import*as Ti from"node:readline";import{AsyncResource as Fo}from"node:async_hooks";var $e=[];$e.push("SIGHUP","SIGINT","SIGTERM");process.

scripts/postinstall.mjsView file

•matchType = normalized_sha256 matchedPackage = mega-code-dev@0.5.1 matchedPath = scripts/postinstall.mjs matchedIdentity = npm:bWVnYS1jb2RlLWRldg:0.5.1 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.

scripts/postinstall.mjsView on unpkg

•matchType = malicious_source_fingerprint_signature signature = 73c81fcc65798f56 signatureType = suspicious_hashes sourceLabel = final_verdict:malicious matchedPackage = mega-code-dev@0.5.1 matchedPath = scripts/postinstall.mjs matchedIdentity = npm:bWVnYS1jb2RlLWRldg:0.5.1 similarity = 1.000 shingleOverlap = 2 summary = package final verdict is malicious

High

Known Malware Source Fingerprint Signature

Source fingerprint signature matches a known malicious package signature; route for source-aware review.

scripts/postinstall.mjsView on unpkg

Source & flagged code

9 flagged · loading source

package.jsonView file

•scripts.postinstall = node scripts/postinstall.mjs

High

Install Time Lifecycle Scripts

Package defines install-time lifecycle scripts.

package.jsonView on unpkg

•scripts.postinstall = node scripts/postinstall.mjs

Medium

Ambiguous Install Lifecycle Script

Install-time lifecycle script is not statically allowlisted and needs review.

package.jsonView on unpkg

dist/bin/bf.jsView file

High

Child Process

Package source references child process execution.

Findings

9 High4 Medium6 Low

HighInstall Time Lifecycle Scriptspackage.json

HighChild Processdist/bin/bf.js

HighShell

HighSame File Env Network Executiondist/bin/bf.js

HighCommand Output Exfiltrationdist/bin/bf.js

HighTrigger Reachable Command Output Exfiltrationdist/bin/bf.js

HighKnown Malware Source Similarityscripts/postinstall.mjs

HighKnown Malware Source Similaritydist/bin/bf.js

HighKnown Malware Source Fingerprint Signaturescripts/postinstall.mjs

MediumAmbiguous Install Lifecycle Scriptpackage.json

MediumNetwork

MediumEnvironment Vars

MediumStructural Risk Force Deep Review

Affected versions and remediation

This report applies to mega-code-dev@0.5.2.

See all versions of mega-code-dev for other recorded verdicts.

Review the evidence and your use of mega-code-dev@0.5.2 before allowing it. Restrict the permissions described in this report.
Choose an independently verified alternative or release. This report does not establish that other versions are safe.

Evidence last updated: 2026-10-20 04:35:36.957Z (UTC).

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