registry / alvin-bot / 5.97.0

alvin-bot@5.97.0

Open-source, self-hosted autonomous AI agent on Telegram, Slack, Discord, WhatsApp, Signal, terminal & web. Claude Agent SDK + multi-provider engine with auto-failover, detached sub-agents, zero-config memory. Local-first, telemetry-free.

AI Security Review

scanned 1mo ago · by lpm-firewall-ai

The inspected package has no install lifecycle hook and its powerful behaviors are exposed as runtime CLI or agent functionality. Obfuscation warrants caution but does not by itself establish malicious behavior.

Static reason

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

Trigger

A user runs the CLI or invokes configured agent capabilities.

Impact

These are expected operator-invoked capabilities; no confirmed unconsented attack behavior was found.

Mechanism

The application can start local tools, execute agent commands, and send user-supplied email through configured local software.

AI rationale

Decision evidence

public snapshot

AI called this Clean at 83.0% confidence as Benign with medium false-positive risk.

Evidence for AI clean decision

Package metadata exposes a CLI and start/setup scripts; no registry install lifecycle hook was present in the inspected scripts.
The Claude bridge starts a local Claude executable with piped standard streams.
The command executor contains agent command execution, while the CLI routes setup only when the user supplies the setup command.
The web server contains password-based authentication checks, and the email plugin sends only caller-provided recipient, subject, and body values through its configured mail CLI.

Evidence against

Several distributed files are obfuscated, limiting readability.
The package intentionally provides powerful agent capabilities, including shell commands and email sending.

Behavioral surface

Source

ChildProcessCryptoDynamicRequireEnvironmentVarsEvalFilesystemNetworkShellWebSocket

Supply chain

HighEntropyStrings

Source & flagged code

19 flagged

claude-bridge/src/claude.jsView file

Lines 1-22javascript

1'use strict';

3const { spawn } = require('child_process');

4const crypto = require('crypto');

High

Child Process

Package source references child process execution.

claude-bridge/src/claude.jsView on unpkg · L2

Medium

Dynamic Require

Package source references dynamic require/import behavior.

claude-bridge/src/claude.jsView on unpkg · L2

6const CLAUDE_BIN = process.env.CLAUDE_BIN || 'claude';

Low

Weak Crypto

Package source references weak cryptographic algorithms.

claude-bridge/src/claude.jsView on unpkg · L2

8// --- Stable alias per CLI session ---

9// Each session keeps one alias so resumed requests don't accumulate different

10// names in the Claude context (which would leak un-replaced aliases in output).

11const PREFIXES = ['Chat', 'Dev', 'Run', 'Ask', 'Net', 'App', 'Zen', 'Arc', 'Dot', 'Amp', 'Hex', 'Orb', 'Elm', 'Oak', 'Sky'];

12const SUFFIXES = ['Kit', 'Box', 'Pod', 'Hub', 'Lab', 'Ops', 'Bay', 'Tap', 'Rim', 'Fog', 'Dew', 'Fin', 'Gem', 'Jet', 'Cog'];

13const pick = (arr) => arr[Math.floor(Math.random() * arr.length)];

14const sessionAliasMap = new Map(); // sessionId → { alias, aliasLower, lastUsed }

15const sessionTokenMaps = new Map(); // sessionId → Map<original, replacement>

17function getSessionAlias(sessionId) {

18 if (!sessionId) {

19 const alias = pick(PREFIXES) + pick(SUFFIXES);

20 return { alias, aliasLower: alias.toLowerCase() };

21 }

22 let entry = sessionAliasMap.get(sessionId);

dist/providers/tool-executor.jsView file

1const _0x4f7194=_0x3205,_0x3195e2=_0x3205;(function(_0x655045,_0x507c03){const _0x806d69=_0x3205,_0x29d48d=_0x3205,_0x248707=_0x655045();while(!![]){try{const _0x508fc6=parseInt(_0...

High

Shell

Package source references shell execution.

dist/providers/tool-executor.jsView on unpkg · L1

bin/cli.jsView file

Lines 2-42javascript

3/**

4 * Alvin Bot CLI — Setup, manage, and chat with your AI agent.

5 *

6 * Usage:

7 * alvin-bot setup — Interactive setup wizard

8 * alvin-bot tui — Terminal chat UI

9 * alvin-bot doctor — Check configuration

10 * alvin-bot audit — Security health check

11 * alvin-bot update — Pull latest & rebuild

12 * alvin-bot start — Start the bot

dist/web/server.jsView file

1const _0xecaeef=_0x1793,_0x426998=_0x1793;(function(_0x101b17,_0x3a5638){const _0x4d0310=_0x1793,_0x54efad=_0x1793,_0x4e61d5=_0x101b17();while(!![]){try{const _0x4b2690=parseInt(_0...

High

Command Output Exfiltration

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

dist/web/server.jsView on unpkg · L1

1Trigger-reachable command-output exfiltration chain: scripts.start -> dist/index.js -> dist/web/server.js L1: const _0xecaeef=_0x1793,_0x426998=_0x1793;(function(_0x101b17,_0x3a5638){const _0x4d0310=_0x1793,_0x54efad=_0x1793,_0x4e61d5=_0x101b17();while(!![]){try{const _0x4b2690=parseInt(_0...

High

Trigger Reachable Command Output Exfiltration

A manifest entrypoint or package-local install chain reaches command-output exfiltration behavior.

dist/web/server.jsView on unpkg · L1

dist/middleware/auth.jsView file

1(function(_0x415f3a,_0x462b5a){const _0x44796f=_0x340b,_0x2d19b5=_0x340b,_0xfd992a=_0x415f3a();while(!![]){try{const _0xab8885=parseInt(_0x44796f(0xd5))/(0x92e+-0x60d+-0x320)+parse...

High

Obfuscated Payload Loader

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

dist/middleware/auth.jsView on unpkg · L1

install.shView file

•path = install.sh kind = build_helper sizeBytes = 10656 magicHex = [redacted]

Medium

Ships Build Helper

Package ships non-JavaScript build or shell helper files.

install.shView on unpkg

claude-bridge/src/claude.js#virtual:normalized:round1View file

•stage = ast_semantic_analysis; reason = ast_parse_error; limitedFiles = 15

High

Semantic Analysis Limited

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

claude-bridge/src/claude.js#virtual:normalized:round1View on unpkg

plugins/email/index.jsView file

•matchType = normalized_sha256 matchedPackage = alvin-bot@5.149.0 matchedPath = plugins/email/index.js matchedIdentity = npm:YWx2aW4tYm90:5.149.0 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.

plugins/email/index.jsView on unpkg

Source & flagged code

19 flagged · loading source

claude-bridge/src/claude.jsView file

2L3: const { spawn } = require('child_process'); L4: const crypto = require('crypto');

High

Child Process

Package source references child process execution.

claude-bridge/src/claude.jsView on unpkg · L2

2L3: const { spawn } = require('child_process'); L4: const crypto = require('crypto');

Medium

Dynamic Require

Package source references dynamic require/import behavior.

claude-bridge/src/claude.jsView on unpkg · L2

2L3: const { spawn } = require('child_process'); L4: const crypto = require('crypto'); L5: L6: const CLAUDE_BIN = process.env.CLAUDE_BIN || 'claude'; L7: ... L106: const SCRUB_WHITELIST = new Set([ L107: 'API_KEY', 'API_KEYS', 'API_URL', 'BASE_URL', 'BASE64', L108: 'HTTP_GET', 'HTTP_POST', 'HTTP_PUT', 'HTTP_DELETE', 'HTTP_PATCH', ... L294: L295: // Idle timeout: reset on every stdout activity. L296: // Claude is alive as long as it produces output (tool calls, results, etc.)

Low

Weak Crypto

Package source references weak cryptographic algorithms.

claude-bridge/src/claude.jsView on unpkg · L2

Findings

15 High6 Medium7 Low

HighChild Processclaude-bridge/src/claude.js

HighShelldist/providers/tool-executor.js

HighEntrypoint Build Divergencebin/cli.js

HighSame File Env Network Executionbin/cli.js

HighCommand Output Exfiltrationdist/web/server.js

HighSandbox Evasion Gated Capabilitybin/cli.js

HighObfuscated Payload Loaderdist/middleware/auth.js

HighCross File Remote Execution Contextbin/cli.js

HighTrigger Reachable Command Output Exfiltrationdist/web/server.js

HighTrigger Reachable Persistencebin/cli.js

HighRuntime Package Installbin/cli.js

HighObfuscated

Affected versions and remediation

This report applies to alvin-bot@5.97.0.

See all versions of alvin-bot for other recorded verdicts.

Review the evidence and your use of alvin-bot@5.97.0 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: 2026-09-22 05:24:57.174Z (UTC).

Think this verdict is wrong? Dispute it on GitHub or read how reports are produced.