registry / alvin-bot / 5.158.0

alvin-bot@5.158.0

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 13d ago · by lpm-firewall-ai

The inspected source did not confirm an attack, and the CLI agent-file setup is guarded by explicit setup and an existence check. Obfuscation in distributed web code leaves a real unresolved risk, so a warning is appropriate.

Static reason

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

Trigger

The web files may run when the package’s web interface is used; the inspected obfuscated snippets do not reveal a specific trigger or malicious action.

Impact

No specific harmful effect was confirmed from the inspected excerpts.

Mechanism

The inspected web bundles use heavily obfuscated identifiers and control flow, preventing confident static interpretation of their full behavior.

AI rationale

Evidence

package.jsonbin/cli.jsclaude-bridge/src/server.jsclaude-bridge/src/claude.jsdist/web/setup-api.jsdist/web/server.jsdist/middleware/auth.js

Network endpoints1

api.telegram.org

Decision evidence

public snapshot

AI called this Suspicious at 62.0% confidence as Unknown with medium false-positive risk.

Evidence for warning

The package manifest exposes a CLI and a prepublish-only build/check script, with no install lifecycle hook.
The CLI copies an example agent instruction file only when the user invokes setup and the destination does not exist.
The bridge cleanup targets old Claude session files, and the inspected credential check sends a Telegram token to Telegram’s API.
Several distributed web files are heavily obfuscated, leaving their behavior insufficiently clear in static inspection.

Evidence against

The inspected CLI agent-file change is guarded by an explicit setup flow and an existence check.
The observed Telegram credential request uses Telegram’s own API endpoint.

Behavioral surface

Source

ChildProcessCryptoDynamicRequireEnvironmentVarsEvalFilesystemNetworkShellWebSocket

Supply chain

HighEntropyStringsMinified

Source & flagged code

23 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);

•matchType = normalized_sha256 matchedPackage = alvin-bot@5.149.0 matchedPath = claude-bridge/src/claude.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.

claude-bridge/src/claude.jsView on unpkg

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/setup-api.js#virtual:normalized:round1View file

1const _0x1e8aa5=_0x1d36,_0x1c7b82=_0x1d36;(function(_0x464058,_0xc39d71){const _0x527796=_0x1d36,_0x53de69=_0x1d36,_0x4c4061=_0x464058();while(!![]){try{const _0x349686=-parseInt(_...

Critical

Same File Env Network Execution

A single source file combines environment access, network access, and code or shell execution with blocking evidence.

dist/web/setup-api.js#virtual:normalized:round1View on unpkg · L1

1const _0x1e8aa5=_0x1d36,_0x1c7b82=_0x1d36;(function(_0x464058,_0xc39d71){const _0x527796=_0x1d36,_0x53de69=_0x1d36,_0x4c4061=_0x464058();while(!![]){try{const _0x349686=-parseInt(_...

Critical

Credential Exfiltration

Source appears to send environment or credential material to an external endpoint.

dist/web/setup-api.js#virtual:normalized:round1View on unpkg · L1

1Trigger-reachable chain: scripts.start -> dist/index.js -> dist/web/server.js -> dist/web/setup-api.js L1: const _0x1e8aa5=_0x1d36,_0x1c7b82=_0x1d36;(function(_0x464058,_0xc39d71){const _0x527796=_0x1d36,_0x53de69=_0x1d36,_0x4c4061=_0x464058();while(!![]){try{const _0x349686=-parseInt(_...

Critical

Trigger Reachable Dangerous Capability

A package entrypoint or install-time lifecycle script reaches a source file with blocking dangerous behavior.

dist/web/setup-api.js#virtual:normalized:round1

dist/web/server.jsView file

1const _0x42a62d=_0x320e,_0x262b91=_0x320e;(function(_0x199711,_0x81f579){const _0x4a2d29=_0x320e,_0x6a7c1b=_0x320e,_0x126aae=_0x199711();while(!![]){try{const _0x8d81f6=-parseInt(_...

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 _0x42a62d=_0x320e,_0x262b91=_0x320e;(function(_0x199711,_0x81f579){const _0x4a2d29=_0x320e,_0x6a7c1b=_0x320e,_0x126aae=_0x199711();while(!![]){try{const _0x8d81f6=-parseInt(_...

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(_0x1fa78e,_0x427abf){const _0x324d23=_0x2793,_0x4dc572=_0x2793,_0x1d8ac7=_0x1fa78e();while(!![]){try{const _0xe99b58=-parseInt(_0x324d23(0x17a))/(-0x16f*0x3+-0xb*-0xb+0x3...

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 = 17

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

claude-bridge/src/server.jsView file

•matchType = normalized_sha256 matchedPackage = alvin-bot@5.149.0 matchedPath = claude-bridge/src/server.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.

claude-bridge/src/server.jsView on unpkg

Source & flagged code

23 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

High

Known Malware Source Similarity

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

claude-bridge/src/claude.jsView on unpkg

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

Findings

3 Critical18 High6 Medium7 Low

CriticalSame File Env Network Executiondist/web/setup-api.js#virtual:normalized:round1

CriticalCredential Exfiltrationdist/web/setup-api.js#virtual:normalized:round1

CriticalTrigger Reachable Dangerous Capabilitydist/web/setup-api.js#virtual:normalized:round1

HighChild Processclaude-bridge/src/claude.js

HighShell

HighEvalbin/cli.js

HighEntrypoint Build Divergencebin/cli.js

HighCredential Redirect Persistencebin/cli.js

HighCommand Output Exfiltrationdist/web/server.js

HighSandbox Evasion Gated Capabilitybin/cli.js

HighObfuscated Payload Loaderdist/middleware/auth.js

Affected versions and remediation

This report applies to alvin-bot@5.158.0.

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

Review the evidence and your use of alvin-bot@5.158.0 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: 2026-10-10 17:13:22.494Z (UTC).

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