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Malicious package

@pulse-web-platform-core/scripts-loadernpm

Malicious code in @pulse-web-platform-core/scripts-loader (npm) Remove it immediately and rotate any exposed credentials.

MAL-2026-4421
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
npm uninstall @pulse-web-platform-core/scripts-loader

What this malware does

On npm install, the package's preinstall.js performs an HTTP GET to http://${pkg}.${scope}.oob.moika.tech/poc.js and passes the response body directly to eval() with no integrity verification. The URL embeds the installing package's scope and name as DNS subdomains of oob.moika.tech, causing the installer's resolver and the remote server to receive the target's scope/package context as an out-of-band beacon before any code runs. The fetched payload then executes with the installer's privileges; an in-source comment indicates intent to collect whoami, hostname, ifconfig, and /etc/passwd output. The package metadata (keywords: ["bug bounty"], version 99.99.7, generic description k2 cloud utilities, scope @pulse-web-platform-core) is consistent with a dependency-confusion probe targeting an internal scope, but the install-time behavior is indistinguishable from a malicious supply-chain attack: every installer who pulls this package — whether deliberately or via name-confusion — executes attacker-controlled remote code over unauthenticated HTTP.

Any computer that has this package installed or running should be considered fully compromised. All secrets and keys stored on that computer should be rotated immediately from a different computer. The package should be removed, but as full control of the computer may have been given to an outside entity, there is no guarantee that removing the package will remove all malicious software resulting from installing it.

Malicious versions

1 flagged
99.99.7

Indicators of compromise (SHA-256)

7c69fc52eb76aa05711ea0c128624eb1fc8c70655a58f2f3e646da1dcd20f254
c198737da8eb0f424965be8360bb13ab81cfc062db919dbda6de136ced77eef7
cd9e3f800de83f801bc83bea04d4f2d5760a75001fb61d58d39feef6069b5810

Detection & response playbook

Backdoor / remote access
  1. Find it

    Scan your lockfiles (package-lock.json, pnpm-lock.yaml, yarn.lock, requirements.txt, poetry.lock, etc.) and build artifacts for @pulse-web-platform-core/scripts-loader (version 99.99.7). O3 Security's supply-chain scanner checks every dependency against known-malicious package intelligence at install time and in CI, flagging @pulse-web-platform-core/scripts-loader across your stack and pipelines.

  2. If you installed it — respond

    @pulse-web-platform-core/scripts-loader establishes remote access, so treat any host that installed it as fully compromised. Isolate the machine, remove the package, rotate all credentials it could reach, and rebuild from a trusted image rather than cleaning in place — a backdoor may have planted additional persistence.

  3. Did it already run?

    If @pulse-web-platform-core/scripts-loader was ever installed, its post-install/runtime payload may have already executed. O3's L7 egress monitoring and runtime eBPF sensors detect the credential exfiltration or command-and-control callback after install and block the malicious outbound channel, so you catch and contain the actual compromise — not just the presence of the package.

  4. How O3 protects you

    O3 blocks @pulse-web-platform-core/scripts-loader before install through its supply-chain scanner, and if it has already run, detects and severs the exfiltration or C2 callback at runtime through L7 egress monitoring and eBPF.

Frequently asked questions

No. @pulse-web-platform-core/scripts-loader on npm has been identified as a malicious package (version 99.99.7 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

IN-MAL-2026-003926IN-MAL-2026-003927GHSA-f75f-hrx6-f8qh

References

Credits

  • Amazon Inspector · finder

Detect & block this

O3 blocks @pulse-web-platform-core/scripts-loader-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the C2 callback and severs the channel.