registry / wechat-bro / 1.6.6
wechat-bro@1.6.6
AI agent interface for WeChat Web — send/receive messages, manage contacts, upload media, transcribe voice
AI Security Review
scanned 26d ago · by lpm-firewall-aiInspected source shows a conditional Puppeteer browser setup and WeChat-aligned runtime operations. The flagged process execution, agent-file linking, and cookie use are tied to configured automation and WeChat upload behavior; no concrete malicious chain was found.
Static reason
High-risk behavior combination matched malicious policy.; previous stored version diff introduced dangerous source
Trigger
Package installation may run postinstall; runtime automation begins when the user starts the CLI or orchestrator.
Impact
No unauthorized mutation, unrelated credential recipient, or other concrete attack impact was established.
Mechanism
Postinstall checks for Puppeteer's executable and conditionally installs Chrome under the package's user data directory. The orchestrator dispatches messages to the configured harness, and uploads send session cookies to a URL supplied by WeChat page parameters.
AI rationale
Inspected source shows a conditional Puppeteer browser setup and WeChat-aligned runtime operations. The flagged process execution, agent-file linking, and cookie use are tied to configured automation and WeChat upload behavior; no concrete malicious chain was found.
Network endpoints1
wx.qq.com
Decision evidence
public snapshotAI called this Clean at 92.0% confidence as Benign with low false-positive risk.
Evidence for AI clean decision
- The postinstall hook checks Puppeteer's browser path and downloads Chrome into the package's user data directory only if the check fails.
- The CLI connects to the WeChat Web endpoint and loads the package's browser bridge.
- The orchestrator links the selected agent file as AGENTS.md in its task directory and launches the configured harness for a dispatch.
- Media uploads use WeChat-derived parameters and send the session cookies to the returned upload URL.
Evidence against
- The lifecycle download is browser setup, with no evidence of consumer policy changes or unrelated project mutation.
- The process execution, agent configuration, and cookie forwarding inspected match the package's WeChat automation and explicitly configured agent-dispatch behavior; no unrelated recipient or concrete attack was identified.
Behavioral surface
ChildProcessEnvironmentVarsFilesystemNetworkWebSocket
HighEntropyStrings
Source & flagged code
7 flaggedpackage.jsonView file
•scripts.postinstall = node -e "const p=require('path'),o=require('os'),d=p.join(o.homedir(),'.wechat-bro','chromium');process.env.PUPPETEER_CACHE_DIR=d;const pup=require('puppeteer');(async()=>{try{awai...
Critical
Red Install Lifecycle Script
Install-time lifecycle script matches a deterministic static-gate block pattern.
package.jsonView on unpkg•scripts.postinstall = node -e "const p=require('path'),o=require('os'),d=p.join(o.homedir(),'.wechat-bro','chromium');process.env.PUPPETEER_CACHE_DIR=d;const pup=require('puppeteer');(async()=>{try{awai...
High
Install Time Lifecycle Scripts
Package defines install-time lifecycle scripts.
package.jsonView on unpkg•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.
package.jsonView on unpkgFindings
2 Critical5 High3 Medium4 Low
CriticalRed Install Lifecycle Scriptpackage.json
CriticalPrevious Version Dangerous Deltasrc/cli.js
HighInstall Time Lifecycle Scriptspackage.json
HighChild Processsrc/upload.js
HighSame File Env Network Executionsrc/cli.js
HighRuntime Package Installsrc/cli.js
HighSemantic Analysis Limitedpackage.json
MediumNetwork
MediumEnvironment Vars
MediumStructural Risk Force Deep Review
LowScripts Present
LowFilesystem
LowHigh Entropy Strings
LowUrl Strings
Affected versions and remediation
This report applies to wechat-bro@1.6.6.
See all versions of wechat-bro for other recorded verdicts.
- Review the evidence and your use of wechat-bro@1.6.6 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: .
Think this verdict is wrong? Dispute it on GitHub or read how reports are produced.