Which versions of @marketfront/bannerpopup are malicious?

The following npm versions of @marketfront/bannerpopup are flagged malicious: 7.0.0. Treat any of these as compromised.

How do I remediate @marketfront/bannerpopup if I installed it?

@marketfront/bannerpopup is built to steal secrets, so assume every credential the build or runtime could read is compromised. Remove it from your project and lockfile, then rotate ALL exposed secrets — npm/registry tokens, cloud keys, CI/CD secrets, SSH keys, and any .env values — from a known-clean machine. Audit logs for unauthorized use of those credentials.

I already installed @marketfront/bannerpopup — how do I know if it already compromised me?

If @marketfront/bannerpopup 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.

Is @marketfront/bannerpopup part of a known attack campaign?

Yes — @marketfront/bannerpopup is associated with the IN-MAL-2026-008582 campaign. Packages in the same campaign often share infrastructure and payloads, so check whether any related packages are also in your dependency tree.

How do I find @marketfront/bannerpopup across my projects, lockfiles, and CI pipelines?

Search your lockfiles and build artifacts for @marketfront/bannerpopup (version 7.0.0).

Part of a larger attack: @marketfront published 25 malicious packages. See the full campaign →

Malicious package

@marketfront/bannerpopupnpm

Advisory published Jul 2, 2026Updated Jul 8, 2026

@marketfront/bannerpopup is a confirmed malicious npm package (MAL-2026-6765) that steals credentials and exfiltrates sensitive data (malicious version 7.0.0). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in @marketfront/bannerpopup (npm)

MAL-2026-6765

Immediate action

Remove the package, then rotate any secrets the build/runtime could reach.

npm uninstall @marketfront/bannerpopup

What this malware does

The @marketfront/bannerpopup package is part of a 25-package malicious campaign batch-published to the @marketfront npm scope by npm user 'marketfront' ([email protected]) within a roughly 3-minute window on 2026-07-01. All packages in the campaign were published at version 7.0.0 and use e-commerce/marketing frontend component names as cover.

The package declares a postinstall hook (node scripts/postinstall.js) that executes heavily obfuscated (obfuscator.io-style) code automatically at npm install time. Static analysis of the decoded payload revealed a credential harvester that dynamically requires fs, os, http, https, zlib, path and dns, then reads approximately 20 sensitive credential files including ~/.ssh, ~/.aws/credentials, ~/.kube/config, ~/.docker/config.json, ~/.npmrc, ~/.netrc, ~/.pgpass, ~/.git-credentials, ~/.env and ~/.bash_history. Collected data is exfiltrated via a gzip-compressed HTTPS POST with a custom X-Secret header to the path /api/v1/events, alongside a DNS resolver beacon. The command-and-control host is concealed behind an additional RC4+XOR encryption layer around an embedded configuration blob and was not statically resolved.

The decoded behavioral payload (module requires, credential-file target list, exfiltration headers and endpoint) is byte-for-byte identical across sampled packages in the campaign. The campaign shares tooling and infrastructure patterns (obfuscated postinstall credential harvester, X-Secret header, /api/v1/events exfiltration path, RC4-concealed C2) with the earlier @emcd-vue campaign, indicating the same actor rotating scopes and disposable maintainer emails.

The package was found to contain malicious code or consuming dependency that contains malicious code

Malicious versions

1 flagged

7.0.0

Indicators of compromise (SHA-256)

ee3a07add5b7558bdb1e62d55cef72d746c5ac6e86051745dfbf4cf8b3307e3e

Detection & response playbook

Credential / info stealer

Find it
Search your lockfiles and build artifacts for @marketfront/bannerpopup (version 7.0.0).
If you installed it — respond
@marketfront/bannerpopup is built to steal secrets, so assume every credential the build or runtime could read is compromised. Remove it from your project and lockfile, then rotate ALL exposed secrets — npm/registry tokens, cloud keys, CI/CD secrets, SSH keys, and any .env values — from a known-clean machine. Audit logs for unauthorized use of those credentials.
Did it already run?
If @marketfront/bannerpopup 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. @marketfront/bannerpopup on npm has been identified as a malicious package (version 7.0.0 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

IN-MAL-2026-008582

References

Credits

Amazon Inspector · finder
SafeDep · finder

Detect & block this

O3 blocks @marketfront/bannerpopup-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the credential exfiltration and severs the channel.

Malware detection Runtime egress monitoring

Explore

All malware advisories How O3 detects malware Vulnerability database