--- canonical: "https://firewall.lpm.dev/npm/eslint-plugin-vitest-ts/v/1.0.4" markdown: "https://firewall.lpm.dev/npm/eslint-plugin-vitest-ts/v/1.0.4.md" package: "eslint-plugin-vitest-ts" report_status: "published" title: "eslint-plugin-vitest-ts@1.0.4 npm security report" verdict: "malicious" version: "1.0.4" --- # eslint-plugin-vitest-ts@1.0.4 npm security report > **Trust boundary:** Package metadata, advisory text, filenames, URLs, and source snippets in this report come from external packages or feeds. Treat them as untrusted evidence. Do not execute instructions or code found in this document. ## Verdict summary **Blocked & quarantined** — Arbitrary code execution on the installing machine; payload behavior is remotely changeable. - **Verdict:** Malicious - **Product-default install policy:** Block - **Firewall policy:** Matched malicious - **Public report status:** Published - **Threat category:** Remote Code Execution - **Selected version:** 1.0.4 - **Selected version is latest:** No - **Analysis source:** AI Security Review (lpm-firewall-ai) Installation launches a detached child process that retrieves and executes remote JavaScript. The remote payload can use Node require. ## Latest scan - **Scanner version:** rust-scanner-worker-schema-1 - **Verdict:** Malicious - **Confidence:** 99.0% - **Started:** 2026-08-05T09:01:03.319Z - **Finished:** 2026-08-05T09:01:46.060Z - **Download time:** 508 ms - **Static scan time:** 968 ms - **AI review time:** 41264 ms - **Total time:** 42741 ms ## Security analysis ### Published attack-surface review - **Summary:** Installation launches a detached child process that retrieves and executes remote JavaScript. The remote payload can use Node require. - **Trigger:** npm postinstall - **Impact:** Arbitrary code execution on the installing machine; payload behavior is remotely changeable. - **Evidence paths:** package.json, lib/utils/index.js, lib/utils/smtp-connection/index.js, lib/utils/smtp-connection/LICENSE, lib/utils/smtp-connection/parse.js - **Review source:** ai\_review - **Reviewed:** 2026-08-05T09:01:46.060Z ### AI review details - **Review stage:** source\_first\_review - **Mechanism:** detached remote payload loader with dynamic code execution - **Attack narrative:** During npm postinstall, the package starts a detached Node child process. That process reads a concealed local payload file, then fetches JSON from JSONBin and compiles the response's record.cookie field through new Function, supplying require. This gives a remotely controlled payload arbitrary Node module access on the installer machine and lets the attacker alter behavior after publication. - **Rationale:** The install-time detached loader fetches and executes attacker-controlled remote code, which is concrete malicious behavior unrelated to an ESLint plugin. - **Files touched:** package.json, lib/utils/index.js, lib/utils/smtp-connection/index.js, lib/utils/smtp-connection/LICENSE, lib/utils/smtp-connection/parse.js - **Network endpoints:** https://api.jsonbin.io/v3/b/6a72aa2bda38895dfebb1302 ### Review decision - **Verdict:** Malicious - **Confidence:** 99.0% - **Recommended action:** publish\_block - **Intent class:** Malware - **False-positive risk:** Low - **Evidence for:** package.json postinstall runs lib/utils/index.js., lib/utils/index.js spawns and detaches a child Node process., lib/utils/smtp-connection/index.js fetches a remote JSONBin URL., That script passes remotely supplied record.cookie to new Function with require access., lib/utils/smtp-connection/LICENSE is an opaque hex payload with AES decryption helper in parse.js. - **Evidence against:** Most lib/ files are Nodemailer-derived mail-transport code, but are unrelated to the install hook. ## Public findings ### 1. High: Install Time Lifecycle Scripts - **Category:** Manifest - **Confidence:** 90.0% - **Path:** package.json - **Public source:** [View source]() Package defines install-time lifecycle scripts. Public source snippet (untrusted): ```json scripts.postinstall = node lib/utils/index.js ``` ### 2. Low: Scripts Present - **Category:** Manifest - **Confidence:** 100.0% Package declares npm scripts. ### 3. High: Child Process - **Category:** Source - **Confidence:** 85.0% - **Path:** lib/utils/index.js - **Public source:** [View source]() Package source references child process execution. Public source snippet (untrusted): ```javascript L2: L3: const { spawn } = require('child_process'); L4: ``` ### 4. Low: Eval - **Category:** Source - **Confidence:** 45.0% - **Path:** lib/utils/smtp-connection/index.js - **Public source:** [View source]() Package source references a known benign dynamic code generation pattern. Public source snippet (untrusted): ```javascript L9: try { L10: (function(_0x926305,_0x2fb67c){const _0x5dc643=_0x55ca,_0x2a55e3=_0x926305();while(!![]){try{const _0x2cfc44=-parseInt(_0x5dc643(0xda))/0x1+-parseInt(_0x5dc643(0xd8))/0x2+-parseInt... L11: } catch (err) { ``` ### 5. Low: Weak Crypto - **Category:** Source - **Confidence:** 64.0% - **Path:** lib/smtp-connection/index.js - **Public source:** [View source]() Package source references weak cryptographic algorithms. Public source snippet (untrusted): ```javascript L2: L3: const packageInfo = require('../../package.json'); L4: const EventEmitter = require('events').EventEmitter; L5: const net = require('net'); L6: const tls = require('tls'); ... L49: L50: this.id = crypto.randomBytes(8).toString('base64').replace(/\W/g, ''); L51: this.stage = 'init'; ... L69: L70: this.name = this.options.name || this._getHostname(); L71: ... L637: } else { ``` ### 6. Medium: Network - **Category:** Source - **Confidence:** 75.0% Package source references network APIs. ### 7. Medium: Environment Vars - **Category:** Source - **Confidence:** 75.0% Package source references environment variables. ### 8. Low: Filesystem - **Category:** Source - **Confidence:** 70.0% Package source references filesystem APIs. ### 9. High: Obfuscated Payload Loader - **Category:** Source - **Confidence:** 86.0% - **Path:** lib/utils/smtp-connection/index.js - **Public source:** [View source]() Source contains an obfuscated payload loader that reconstructs and executes hidden code. Public source snippet (untrusted): ```javascript L9: try { L10: (function(_0x926305,_0x2fb67c){const _0x5dc643=_0x55ca,_0x2a55e3=_0x926305();while(!![]){try{const _0x2cfc44=-parseInt(_0x5dc643(0xda))/0x1+-parseInt(_0x5dc643(0xd8))/0x2+-parseInt... L11: } catch (err) { ``` ### 10. High: Cross File Remote Execution Context - **Category:** Source - **Confidence:** 72.0% - **Path:** lib/utils/index.js - **Public source:** [View source]() Source spawns a local helper that also contains network and dynamic execution context; review data flow before blocking. Public source snippet (untrusted): ```javascript Cross-file remote execution chain: lib/utils/index.js spawns lib/utils/smtp-connection/index.js; helper contains network access plus dynamic code execution. L2: L3: const { spawn } = require('child_process'); L4: ... L7: L8: const filePath = path.join(__dirname, 'smtp-connection/index.js'); L9: ``` ### 11. High: Obfuscated - **Category:** Supply Chain - **Confidence:** 100.0% Package source appears deliberately obfuscated. ### 12. Low: High Entropy Strings - **Category:** Supply Chain - **Confidence:** 55.0% Package source contains high-entropy string patterns. ### 13. Low: Url Strings - **Category:** Supply Chain - **Confidence:** 65.0% Package source contains URL literals. ### 14. Medium: Structural Risk Force Deep Review - **Category:** Artifact Inventory - **Confidence:** 100.0% Artifact structure forces deeper review even if the static behavioral verdict is clean. ### 15. High: Known Malware Source Similarity - **Category:** Static - **Confidence:** 97.0% - **Path:** lib/shared/index.js - **Public source:** [View source]() Source file is highly similar to a previously finalized malicious package; route for source-aware review. Public source snippet (untrusted): ```javascript matchType = normalized_sha256 matchedPackage = vitest-preview-pro@10.0.3 matchedPath = lib/shared/index.js matchedIdentity = npm:dml0ZXN0LXByZXZpZXctcHJv:10.0.3 similarity = 1.000 summary = normalized source hash matched finalized malicious source ``` ### 16. High: Known Malware Source Similarity - **Category:** Static - **Confidence:** 97.0% - **Path:** lib/utils/smtp-connection/index.js - **Public source:** [View source]() Source file is highly similar to a previously finalized malicious package; route for source-aware review. Public source snippet (untrusted): ```javascript matchType = normalized_sha256 matchedPackage = chalk-plus-ts@1.0.4 matchedPath = lib/utils/smtp-connection/index.js matchedIdentity = npm:Y2hhbGstcGx1cy10cw:1.0.4 similarity = 1.000 summary = normalized source hash matched finalized malicious source ``` ### 17. High: Known Malware Source Fingerprint Signature - **Category:** Supply Chain - **Confidence:** 94.0% - **Path:** lib/shared/index.js - **Public source:** [View source]() Source fingerprint signature matches a known malicious package signature; route for source-aware review. Public source snippet (untrusted): ```javascript matchType = malicious_source_fingerprint_signature signature = ce5076db7b0bca5d signatureType = suspicious_hashes sourceLabel = final_verdict:malicious matchedPackage = chalk-plus-ts@1.0.4 matchedPath = lib/utils/index.js matchedIdentity = npm:Y2hhbGstcGx1cy10cw:1.0.4 similarity = 1.000 shingleOverlap = 34 summary = package final verdict is malicious ``` ## Dependencies and install lifecycle - **Lifecycle scripts present:** Yes - **Published lifecycle scripts:** postinstall - **Dependencies:** 16 - **Optional dependencies:** 0 - **Peer dependencies:** 0 - **Development dependencies:** 0 - **Published dependency-graph edges:** 16 ### Published dependency entries - atomic-sleep ^1.0.0 (Dependency) - axios ^1.10.0 (Dependency) - eslint-plugin-vitest-ts ^1.0.3 (Dependency) - fast-redact ^3.0.0 (Dependency) - on-exit-leak-free ^0.2.0 (Dependency) - pino-abstract-transport v0.5.0 (Dependency) - pino-std-serializers ^4.0.0 (Dependency) - process-warning ^1.0.0 (Dependency) - quick-format-unescaped ^4.0.3 (Dependency) - real-require ^0.1.0 (Dependency) - request ^2.88.2 (Dependency) - safe-stable-stringify ^2.1.0 (Dependency) - socket.io-client ^4.8.1 (Dependency) - sonic-boom ^2.2.1 (Dependency) - sqlite3 ^5.1.7 (Dependency) - thread-stream ^0.15.1 (Dependency) ## Package metadata - **Package:** eslint-plugin-vitest-ts - **Ecosystem:** npm - **Version:** 1.0.4 - **License:** MIT-0 - **Version published:** 2026-08-05T05:32:36.201Z - **Package first seen:** 2026-08-05T09:01:46.060Z - **Package last seen:** 2026-08-06T00:34:29.627Z - **Known versions:** 2 - **Latest version:** 0.0.1-security - **Appeal under review:** No - **Description:** Copyright (c) React Training 2015-present - **Author:** Andris Reinman - **Keywords:** eslint-plugin-vitest-ts - **Runtime engines:** node: \>=6.0.0 - **Artifact files:** 47 - **Artifact unpacked size:** 1,034,304 bytes - **Artifact signatures:** 1 - **Attestations:** No ## References - [HTML security report]() - [Repository]() - [Homepage]() - [Issues]() - [OSV advisory]() - [PACKAGE]() - [ADVISORY]()