registry / claude-multiacc / 2.0.22

claude-multiacc@2.0.22

Unified Claude Code and OpenAI Codex subscription pooling with quota-aware selection.

AI Security Review

scanned 4h ago · by lpm-firewall-ai

A global npm installation automatically invokes an installer that changes command resolution for Claude and Codex and creates scheduled jobs. The scheduled jobs include an automatic upgrade that installs a later package release.

Static reason

One or more suspicious static signals were detected.; previous stored version diff introduced dangerous source

Trigger

Installing or updating the package globally with npm.

Impact

Future Claude or Codex invocations can be redirected through package shims, and the package can automatically fetch and execute later releases.

Mechanism

Postinstall-driven PATH shadowing, scheduler persistence, and self-updating lifecycle re-entry.

Attack narrative

The package declares postinstall. On a global install it silently launches install.sh, which adds shell startup PATH blocks, can install command-shadowing links, and enables launchd or cron jobs. One recurring job calls self-update; its implementation installs claude-multiacc@latest globally, causing the new release's postinstall to run again. This is an unconsented lifecycle chain that persistently controls the Claude and Codex command surface.

Rationale

The automatic global lifecycle hook broadly mutates AI command resolution and establishes scheduled self-updating persistence. This satisfies the install-hook abuse policy even though no separate exfiltration endpoint was found.

Evidence

package.jsonscripts/postinstall.mjsinstall.shbin/claude-accounts$HOME/.zshenv$HOME/.zprofile$HOME/.zshrc$HOME/.bash_profile$HOME/.bashrc$HOME/Library/LaunchAgentsuser crontab/usr/local/bin/claude/usr/local/bin/codex

Decision evidence

public snapshot

AI called this Malicious at 98.0% confidence as Malware with low false-positive risk.

Evidence for block

The manifest registers an automatic postinstall hook.
On global installation, the hook runs install.sh without a separate user command.
The installer alters shell startup files, can replace command resolution for Claude and Codex, and installs recurring jobs.
A scheduled self-update installs the latest package release, which re-runs its postinstall hook.

Evidence against

The selector test source is ordinary local test code.
The multiacc-select entry point only parses JSON and invokes local selection code.
No package-owned data-exfiltration endpoint was found.

Behavioral surface

Source

ChildProcessEnvironmentVarsFilesystemShell

Supply chain

HighEntropyStrings

ManifestNo manifest risk signals triggered.

scanned 2 file(s), 6.67 KB of source

Source & flagged code

7 flagged

package.jsonView file

Lines 34-62json

34 "gowalk"

35 ],

36 "author": {

37 "name": "Gowalk"

38 },

39 "license": "MIT",

40 "repository": {

41 "type": "git",

42 "url": "git+https://github.com/gowalk-public/claude-multiacc.git"

43 },

44 "homepage": "https://github.com/gowalk-public/claude-multiacc#readme",

45 "bugs": {

46 "url": "https://github.com/gowalk-public/claude-multiacc/issues"

47 },

48 "publishConfig": {

49 "access": "public"

50 },

51 "engines": {

52 "node": ">=18"

53 },

54 "scripts": {

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

High

Install Time Lifecycle Scripts

Package defines install-time lifecycle scripts.

package.jsonView on unpkg · L55

Medium

Ambiguous Install Lifecycle Script

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

package.jsonView on unpkg · L55

56 "test": "bash tests/run-tests.sh && python3 tests/test_selector.py"

57 },

High

Suspicious Lifecycle Evidence

The manifest registers an automatic postinstall hook.

package.jsonView on unpkg · L54

58 "dependencies": {

59 "update-notifier": "^7.3.1"

60 }

61}

install.shView file

•path = install.sh kind = build_helper sizeBytes = 22327 magicHex = [redacted]

Medium

Ships Build Helper

Package ships non-JavaScript build or shell helper files.

install.shView on unpkg

tests/test_selector.pyView file

•path = tests/test_selector.py kind = payload_in_excluded_dir sizeBytes = 23183 magicHex = [redacted]

High

Payload In Excluded Dir

Package hides binary, compressed, or executable-looking payloads in test/fixture/hidden paths.

tests/test_selector.pyView on unpkg

bin/multiacc-selectView file

•stage = ast_semantic_analysis; reason = ast_parse_error; limitedFiles = 1

High

Semantic Analysis Limited

A bounded semantic-analysis stage reached its safety limit; remaining detectors completed, but this package requires AI review.

bin/multiacc-selectView on unpkg

bin/claudeView file

•matchType = previous_version_dangerous_delta matchedPackage = claude-multiacc@2.0.19 matchedIdentity = npm:Y2xhdWRlLW11bHRpYWNj:2.0.19 similarity = 0.600 summary = stored previous version shares package body but lacks this dangerous source file

High

Previous Version Dangerous Delta

This package version adds a dangerous source file absent from the previous stored version; route for source-aware review.

bin/claudeView on unpkg

Source & flagged code

7 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

54"scripts": { "postinstall": "node scripts/postinstall.mjs", "test": "bash tests/run-tests.sh && python3 tests/test_selector.py" }

High

Suspicious Lifecycle Evidence

The manifest registers an automatic postinstall hook.

package.jsonView on unpkg · L54

•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

install.shView file

•path = install.sh kind = build_helper sizeBytes = 22327 magicHex = [redacted]

Medium

Ships Build Helper

Package ships non-JavaScript build or shell helper files.

install.shView on unpkg

tests/test_selector.pyView file

•path = tests/test_selector.py kind = payload_in_excluded_dir sizeBytes = 23183 magicHex = [redacted]

High

Payload In Excluded Dir

Package hides binary, compressed, or executable-looking payloads in test/fixture/hidden paths.

tests/test_selector.pyView on unpkg

bin/multiacc-selectView file

•stage = ast_semantic_analysis; reason = ast_parse_error; limitedFiles = 1

High

Semantic Analysis Limited

A bounded semantic-analysis stage reached its safety limit; remaining detectors completed, but this package requires AI review.

bin/multiacc-selectView on unpkg

bin/claudeView file

High

Previous Version Dangerous Delta

This package version adds a dangerous source file absent from the previous stored version; route for source-aware review.

bin/claudeView on unpkg

Findings

5 High4 Medium3 Low

HighInstall Time Lifecycle Scriptspackage.json

HighPayload In Excluded Dirtests/test_selector.py

HighSemantic Analysis Limitedbin/multiacc-select

HighPrevious Version Dangerous Deltabin/claude

HighSuspicious Lifecycle Evidencepackage.json

MediumAmbiguous Install Lifecycle Scriptpackage.json

MediumEnvironment Vars

MediumShips Build Helperinstall.sh

MediumStructural Risk Force Deep Review

LowScripts Present

LowFilesystem

LowHigh Entropy Strings