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Malicious package

@audience-common-ui/componentsnpm

Advisory published Updated

@audience-common-ui/components is a confirmed malicious npm package (MAL-2026-4287) that opens a backdoor for remote access (malicious version 99.99.1). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in @audience-common-ui/components (npm)

MAL-2026-4287
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
npm uninstall @audience-common-ui/components

What this malware does

Package @audience-common-ui/[email protected] is a dependency-confusion probe targeting an internal scope. Both preinstall and postinstall lifecycle hooks in package.json shell out to curl and send the installer's username ($(whoami)), hostname ($(hostname)), current working directory ($PWD), and a timestamp to http://64.227.183.144/depconf/@audience-common-ui/components/ — a bare IPv4 over plain HTTP, with no relation to any documented publisher. The URL path segment depconf is self-identifying as a dependency-confusion reconnaissance probe, and the 99.99.1 version (far above any plausible legitimate release) is the canonical attacker pattern for overriding an internal private scope. The package ships no real code (index.js is a one-line placeholder), confirming the only functional behavior is the install-time beacon. Author metadata is generic/anonymous. On npm install, the installer's identity and build environment are leaked to attacker-controlled infrastructure without consent.

The OpenSSF Package Analysis project identified '@audience-common-ui/components' @ 99.99.1 (npm) as malicious.

It is considered malicious because:

  • The package executes one or more commands associated with malicious behavior.

Malicious versions

1 flagged
99.99.1

Indicators of compromise (SHA-256)

09e8c62a3f673e3d4109f6701402933e6a48fa82f20ed6d11fac357811aa2472
3e26e359a883cc73de6df21c10ea5bc94596f94ac4c38a3c703f44c91f3a8f1e

Detection & response playbook

Backdoor / remote access

  1. Find it

    Search your lockfiles and build artifacts for @audience-common-ui/components (version 99.99.1).

  2. If you installed it — respond

    @audience-common-ui/components 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 @audience-common-ui/components 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. @audience-common-ui/components on npm has been identified as a malicious package (version 99.99.1 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

IN-MAL-2026-004378

References

Credits

  • Amazon Inspector · finder
  • OpenSSF: Package Analysis · finder

Detect & block this

O3 blocks @audience-common-ui/components-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the C2 callback and severs the channel.

Malware detection Runtime egress monitoring

Explore

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@audience-common-ui/components (npm) malicious package — MAL-2026-4287 | O3 Security