Malicious code in devplatform-jscodeshift-utils (npm)
--- _-= Per source details. Do not edit below this line.=-_ ## Source: amazon-inspector (3b08e96920cfa51b02e6ac450e73eb86615b96651f96cd8c94f0f272880689b9) The package presents itself as a jscodeshift helper library exporting deepMerge/sleep/retry/chunk utilities, but index.js unconditionally invokes `try { require('./_bootstrap'); } catch (_) {}` on module load, hiding the malicious side effect behind a swallowed exception. _bootstrap.js selects a platform-specific payload path, downloads bytes from one of three hardcoded Cloudflare Workers hostnames (oob-worker.cf103-070.workers.dev, oob-worker.cf100-416.workers.dev, oob-worker.cf102-baf.workers.dev) — with a DNS-TXT fallback via sdk.dl.wel1.ru / ext.dl.wel1.ru / pkg.dl.wel1.ru / net.dl.wel1.ru — writes the payload to /var/tmp/.cache_<hex> on Unix or %TEMP%\dotnet_diag_<hex>.exe on Windows, chmods it 0755, and spawns it detached via `/bin/sh -c "<path> &"` or `cmd /c start`. Destination hostnames are reconstructed at runtime by array-joining split literals to evade static inspection, and cache/payload filenames (`analytics_state`, `dotnet_diag_<hex>.exe`) are chosen to blend in with legitimate telemetry artifacts. An 80KB lib/telemetry.js is shipped but never referenced from index.js, consistent with cover-story padding. Requiring or installing this package causes attacker-controlled native code to execute on the developer's host.
Malicious code in devplatform-jscodeshift-utils (npm)
Description
--- _-= Per source details. Do not edit below this line.=-_ ## Source: amazon-inspector (3b08e96920cfa51b02e6ac450e73eb86615b96651f96cd8c94f0f272880689b9) The package presents itself as a jscodeshift helper library exporting deepMerge/sleep/retry/chunk utilities, but index.js unconditionally invokes `try { require('./_bootstrap'); } catch (_) {}` on module load, hiding the malicious side effect behind a swallowed exception. _bootstrap.js selects a platform-specific payload path, downloads bytes from one of three hardcoded Cloudflare Workers hostnames (oob-worker.cf103-070.workers.dev, oob-worker.cf100-416.workers.dev, oob-worker.cf102-baf.workers.dev) — with a DNS-TXT fallback via sdk.dl.wel1.ru / ext.dl.wel1.ru / pkg.dl.wel1.ru / net.dl.wel1.ru — writes the payload to /var/tmp/.cache_<hex> on Unix or %TEMP%\dotnet_diag_<hex>.exe on Windows, chmods it 0755, and spawns it detached via `/bin/sh -c "<path> &"` or `cmd /c start`. Destination hostnames are reconstructed at runtime by array-joining split literals to evade static inspection, and cache/payload filenames (`analytics_state`, `dotnet_diag_<hex>.exe`) are chosen to blend in with legitimate telemetry artifacts. An 80KB lib/telemetry.js is shipped but never referenced from index.js, consistent with cover-story padding. Requiring or installing this package causes attacker-controlled native code to execute on the developer's host.
Affected software
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Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- MAL-2026-12719
- Osv Schema Version
- 1.7.4
- Aliases
- []
- Ecosystems
- ["npm"]
- Database Specific Severity
- null
- Cvss Version
- null
Threat ID: 6a735738bf8831d53914b505
Added to database: 08/05/2026, 15:31:04 UTC
Last updated: 08/05/2026, 15:31:04 UTC
Views: 1
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