{"items":[{"id":"NVI-00010974","kind":"supply_chain_event","title":"Malicious code in xcvrenzcompany (npm)","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-474r-6338-73gj"],"plain_summary":"GitHub lists this malware advisory for xcvrenzcompany, xcvrenzcompany, xcvrenzcompany. Published version ranges and source prerequisites are shown below; this is not an inspection of a visitor’s application.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-7d564f6e529bc9da761f38da212ca9cd"],"action_type":"investigate","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-7d564f6e529bc9da761f38da212ca9cd","url":"https://github.com/advisories/GHSA-474r-6338-73gj","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-474r-6338-73gj","publisher":"GitHub Advisory Database","observed_at":"2026-10-31T23:13:24.290Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-7d564f6e529bc9da761f38da212ca9cd"],"technology":"xcvrenzcompany","known_exclusions":[],"conditions_summary":"This package is a fork of the Baileys WhatsApp Web library (npm) and belongs to the \"PhantomSub\" family described by OX Security in September 2026: the publisher injected code that, without the installer asking, uses the installer's own authenticated WhatsApp session to subscribe that account to WhatsApp Channels (newsletters) the publisher chose, by sending the WhatsApp `w:mex` FOLLOW query (query_id 7871414976211147) for each target channel JID.\n\n`package/lib/Socket/newsletter.js` lines 62-99 define `AUTO_FOLLOW_JIDS`, three base64 strings decoded with `Buffer.from(..., \"base64\")`, and when the connection opens (line 97) schedule a FOLLOW query for each, 90 seconds apart (cited line 85: `await newsletterWMexQuery(jid, QueryIds.FOLLOW);`). Decoded JIDs: `120363400505489366@newsletter`, `120363430764800148@newsletter` and `120363387182851100@newsletter`. There is no opt-out and the behavior is not documented. The npm maintainer account (`xzv-expzc`) also publishes `prastzy`.\n\nLine numbers refer to version 2.0.0; the same code is present in every published version listed under `affected`.\n\nStatic review of the published tarball(s) found no code that sends WhatsApp credentials or ses","public_affected_ranges":["> 0"]},{"certainty":"source_listed","source_ids":["sr-7d564f6e529bc9da761f38da212ca9cd"],"technology":"xcvrenzcompany","known_exclusions":[],"conditions_summary":"This package is a fork of the Baileys WhatsApp Web library (npm) and belongs to the \"PhantomSub\" family described by OX Security in September 2026: the publisher injected code that, without the installer asking, uses the installer's own authenticated WhatsApp session to subscribe that account to WhatsApp Channels (newsletters) the publisher chose, by sending the WhatsApp `w:mex` FOLLOW query (query_id 7871414976211147) for each target channel JID.\n\n`package/lib/Socket/newsletter.js` lines 62-99 define `AUTO_FOLLOW_JIDS`, three base64 strings decoded with `Buffer.from(..., \"base64\")`, and when the connection opens (line 97) schedule a FOLLOW query for each, 90 seconds apart (cited line 85: `await newsletterWMexQuery(jid, QueryIds.FOLLOW);`). Decoded JIDs: `120363400505489366@newsletter`, `120363430764800148@newsletter` and `120363387182851100@newsletter`. There is no opt-out and the behavior is not documented. The npm maintainer account (`xzv-expzc`) also publishes `prastzy`.\n\nLine numbers refer to version 2.0.0; the same code is present in every published version listed under `affected`.\n\nStatic review of the published tarball(s) found no code that sends WhatsApp credentials or ses","public_affected_ranges":["= 1.0.0"]},{"certainty":"source_listed","source_ids":["sr-7d564f6e529bc9da761f38da212ca9cd"],"technology":"xcvrenzcompany","known_exclusions":[],"conditions_summary":"This package is a fork of the Baileys WhatsApp Web library (npm) and belongs to the \"PhantomSub\" family described by OX Security in September 2026: the publisher injected code that, without the installer asking, uses the installer's own authenticated WhatsApp session to subscribe that account to WhatsApp Channels (newsletters) the publisher chose, by sending the WhatsApp `w:mex` FOLLOW query (query_id 7871414976211147) for each target channel JID.\n\n`package/lib/Socket/newsletter.js` lines 62-99 define `AUTO_FOLLOW_JIDS`, three base64 strings decoded with `Buffer.from(..., \"base64\")`, and when the connection opens (line 97) schedule a FOLLOW query for each, 90 seconds apart (cited line 85: `await newsletterWMexQuery(jid, QueryIds.FOLLOW);`). Decoded JIDs: `120363400505489366@newsletter`, `120363430764800148@newsletter` and `120363387182851100@newsletter`. There is no opt-out and the behavior is not documented. The npm maintainer account (`xzv-expzc`) also publishes `prastzy`.\n\nLine numbers refer to version 2.0.0; the same code is present in every published version listed under `affected`.\n\nStatic review of the published tarball(s) found no code that sends WhatsApp credentials or ses","public_affected_ranges":["= 2.0.0"]}],"null_published_at":"2026-10-31T23:18:22.416Z","source_updated_at":"2026-10-02T06:31:14.000Z","source_disclosed_at":"2026-10-02T06:31:07.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"First indexed by Null; source disclosure date is shown separately.","null_first_observed_at":"2026-10-31T23:13:24.290Z"}],"next_cursor":null,"snapshot_revision":"42594"}