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Malicious package

delivery-ci-jira-rndnpm

Advisory published Updated

delivery-ci-jira-rnd is a confirmed malicious npm package (MAL-2026-13501) that executes malicious code on install (malicious version 35.5.4). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in delivery-ci-jira-rnd (npm)

MAL-2026-13501
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
npm uninstall delivery-ci-jira-rnd

What this malware does

On require of the package, index.js loads bridge.js which selects a platform-specific endpoint and downloads a binary over HTTPS from Cloudflare Workers hosts assembled from split string literals (e.g. "oob-worker"+".cf102-baf.workers."+"dev" and similar cf101/cf103 variants), with a DNS-TXT covert-channel fallback that reassembles a base64 payload from numbered subdomains under sdk.dl.wel1.ru. The downloaded bytes are written to a hidden masquerading path in /tmp or %TEMP% (".cache<hex>" or "dotnet_diag_<hex>.exe"), chmod 0755, and spawned detached via /bin/sh -c or cmd.exe. Execution is gated by a TTL stamp file and labelled as telemetry. The hostname obfuscation and DNS-TXT fallback channel are consistent with intentional evasion of static string scanning.

Malicious versions

1 flagged
35.5.4

Indicators of compromise (SHA-256)

9178cec9a952384e307589c3d50840761b3c260ced53213ec8a02f85f629bfd9

Detection & response playbook

Malicious package

  1. Find it

    Search your lockfiles and build artifacts for delivery-ci-jira-rnd (version 35.5.4).

  2. If you installed it — respond

    Remove delivery-ci-jira-rnd from your project and lockfile, then assume any secrets accessible to the build or runtime were exposed: rotate API keys, tokens, and credentials, and audit for unexpected outbound activity or persistence.

  3. Did it already run?

    If delivery-ci-jira-rnd was installed, its post-install payload may already have run. Removing the package does not undo that — check outbound connections and credential use from the install window onward.

Frequently asked questions

No. delivery-ci-jira-rnd on npm has been identified as a malicious package (version 35.5.4 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

IN-MAL-2026-016888

References

Credits

  • Amazon Inspector · finder

Detect & block this

O3 blocks delivery-ci-jira-rnd-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the malicious outbound activity and severs the channel.

Malware detection Runtime egress monitoring

Explore

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delivery-ci-jira-rnd (npm) malicious package — MAL-2026-13501 | O3 Security