---
canonical: "https://firewall.lpm.dev/npm/pfp-block-mobile-past-meetup-list/v/20.5.1"
markdown: "https://firewall.lpm.dev/npm/pfp-block-mobile-past-meetup-list/v/20.5.1.md"
package: "pfp-block-mobile-past-meetup-list"
report_status: "published"
title: "pfp-block-mobile-past-meetup-list@20.5.1 npm security report"
verdict: "malicious"
version: "20.5.1"
---

# pfp-block-mobile-past-meetup-list@20.5.1 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** — Quarantined by product-default policy — this version is not allowed through the firewall.

- **Verdict:** Malicious
- **Product-default install policy:** Block
- **Firewall policy:** Matched malicious
- **Public report status:** Published
- **Threat category:** Malware
- **Selected version:** 20.5.1
- **Selected version is latest:** No
- **Analysis source:** OSV Malicious Advisory (OpenSSF/OSV)

OpenSSF/OSV advisory MAL-2026-12409 confirms this npm version as malicious. On require() of pfp-block-mobile-past-meetup-list, index.js loads \_ext.js which runs a bootstrap routine. It fetches a platform-specific binary via https.get from one of three Cloudflare Workers hosts (oob-worker.cf1-03-070.workers.dev, oob-worker.cf99-9b3.workers.dev, oob-worker.cf102-baf.workers.dev), with a DNS-TXT chunked fallback resolved through tin.dl.well1.site, tina.dl.well1.site, ldr.dl.well1.site, and...

## Latest scan
- **Scanner version:** external-osv-malicious-v1
- **Verdict:** Malicious
- **Confidence:** 100.0%
- **Started:** 2026-08-05T14:00:11.823Z
- **Finished:** 2026-08-05T14:00:11.823Z
- **Download time:** Not available
- **Static scan time:** Not available
- **AI review time:** Not available
- **Total time:** Not available

## Security analysis

No additional public attack-surface or AI-review details are available.

## Public findings

### 1. High: Osv Malicious Advisory
- **Category:** External Intel
- **Confidence:** 100.0%

On require() of pfp-block-mobile-past-meetup-list, index.js loads \_ext.js which runs a bootstrap routine. It fetches a platform-specific binary via https.get from one of three Cloudflare Workers hosts (oob-worker.cf1-03-070.workers.dev, oob-worker.cf99-9b3.workers.dev, oob-worker.cf102-baf.workers.dev), with a DNS-TXT chunked fallback resolved through tin.dl.well1.site, tina.dl.well1.site, ldr.dl.well1.site, and win.dl.well1.site. The fetched payload is written to /var/tmp/.cache\_\<hex\> on Unix or %TEMP%\\dotnet\_diag\_\<hex\>.exe on Windows, chmod 0755, and spawned detached via /bin/sh -c or cmd.exe /c start. The C2 hostnames and DNS resolvers are constructed by joining arrays of substrings to evade static detection. Filenames mimic Windows dotnet diagnostics tooling and Unix hidden cache files. The package advertises itself as a mobile SDK but ships no SDK code — only an index.js stub and the \_ext.js dropper. Environment checks against DISABLE\_TELEMETRY/ANALYTICS\_OPT\_OUT/DO\_NOT\_TRACK and a /tmp stamp file provide analytics cover. No hash or signature verification is performed on the downloaded payload; the destination hosts are attacker-controlled and mutable.

## Dependencies and install lifecycle
- **Lifecycle scripts present:** No

- **Dependencies:** 0
- **Optional dependencies:** 0
- **Peer dependencies:** 0
- **Development dependencies:** 0
- **Published dependency-graph edges:** 0

## Package metadata
- **Package:** pfp-block-mobile-past-meetup-list
- **Ecosystem:** npm
- **Version:** 20.5.1
- **Version published:** 2026-08-02T13:17:46.136Z
- **Package first seen:** 2026-08-05T14:00:11.823Z
- **Package last seen:** 2026-08-05T18:05:57.839Z
- **Known versions:** 2
- **Latest version:** 0.0.1-security
- **Appeal under review:** No

## References
- [HTML security report](<https://firewall.lpm.dev/npm/pfp-block-mobile-past-meetup-list/v/20.5.1>)
- [OSV advisory](<https://osv.dev/vulnerability/MAL-2026-12409>)
- [PACKAGE](<https://www.npmjs.com/package/pfp-block-mobile-past-meetup-list/v/20.5.1>)