Summary
agentgui v1.0.556 was classified as CRITICAL RISK with a risk score of 1113. Sigil detected 78 findings across 105 files, covering phases including network exfiltration, code patterns, install hooks, obfuscation, provenance. Review the findings below before installing this package.
v1.0.556
7 March 2026, 06:42 UTC
by Sigil Bot
Risk Score
1113
Findings
78
Files Scanned
105
Provenance
Findings by Phase
Phase Ordering
Phases are ordered by criticality, with the most dangerous at the top. Click any phase header to expand or collapse its findings. Critical phases are expanded by default.
install-npm-postinstall
CRITICALnpm lifecycle script — runs automatically on install
package/package.json:21
"dev": "node server.js --watch",
"postinstall": "node scripts/patch-fsbrowse.js"
},Why was this flagged?
npm lifecycle scripts like postinstall run automatically during package installation with no user interaction required. This is the #1 attack vector for malicious npm packages — attackers embed data theft or backdoor installation in these hooks. Rated CRITICAL because code executes before the developer can review it.
install-pip-setup-exec
CRITICALsetup.py executes code at install time
package/static/vendor/xterm.min.js:7
*/
!function(e,t){if("object"==typeof exports&&"object"==typeof module)module.exports=t();else if("function"==typeof define&&define.amd)define([],t);else{var i=t();for(var s in i)("object"==typeof exports?exports:e)[s]=i[s]}}(globalThis,(()=>(()=>{"use strict";var e={4567:function(e,t,i){var s=this&&this.__decorate||function(e,t,i,s){var r,n=arguments.length,o=n<3?t:null===s?s=Object.getOwnPropertyDescriptor(t,i):s;if("object"==typeof Reflect&&"function"==typeof Reflect.decorate)o=Reflect.decorWhy was this flagged?
This setup.py calls subprocess, os.system, exec, or eval during package installation. Legitimate packages rarely need to execute arbitrary commands at install time. This pattern is commonly used by malicious packages to download and run payloads, exfiltrate environment variables, or establish persistence. Rated CRITICAL because it runs with the installer's full permissions.
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