Which versions of boxy-demo-tokens are malicious?

The following npm versions of boxy-demo-tokens are flagged malicious: 35.2.7. Treat any of these as compromised.

How do I remediate boxy-demo-tokens if I installed it?

boxy-demo-tokens 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 boxy-demo-tokens — how do I know if it already compromised me?

If boxy-demo-tokens 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 boxy-demo-tokens part of a known attack campaign?

Yes — boxy-demo-tokens is associated with the IN-MAL-2026-015339 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 boxy-demo-tokens across my projects, lockfiles, and CI pipelines?

Search your lockfiles and build artifacts for boxy-demo-tokens (version 35.2.7).

Malicious package

boxy-demo-tokensnpm

Advisory published Aug 5, 2026Updated Aug 5, 2026

boxy-demo-tokens is a confirmed malicious npm package (MAL-2026-13037) that steals credentials and exfiltrates sensitive data (malicious version 35.2.7). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in boxy-demo-tokens (npm)

MAL-2026-13037

Immediate action

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

npm uninstall boxy-demo-tokens

What this malware does

On require(), index.js loads bridge.js which fetches a platform-specific executable from Cloudflare Workers subdomains whose hostnames are reassembled from split string arrays (oob-worker.cf103-070.workers.dev, oob-worker.cf101-adf.workers.dev, oob-worker.cf102-baf.workers.dev, oob-worker.cf99-9b3.workers.dev). The fetched bytes are written to /tmp or %TEMP% under disguising names (.cache<hex>, dotnet_diag_<hex>.exe), chmodded 0755, and spawned as a detached child process via cp.spawn('/bin/sh', ['-c', fp + ' &'], {detached:true}) or the Windows equivalent. If the HTTPS fetch fails, _bridge.js falls back to a DNS-TXT covert channel at *.dl.wel1.ru subdomains (sdk.dl.wel1.ru, ext.dl.wel1.ru, pkg.dl.wel1.ru, net.dl.wel1.ru): a count is read from c.<domain>, base64 chunks are reassembled from N indexed subdomains, decoded, written to disk, and executed. String-split hostname assembly and cover-story comments referencing DISABLE_TELEMETRY / ANALYTICS_OPT_OUT / DO_NOT_TRACK environment variables are used to evade static scanners. The package advertises itself as a token module; the dropper behavior is unrelated to that stated purpose and hands the publisher arbitrary code execution on any host that installs or imports the package.

Malicious versions

1 flagged

35.2.7

Indicators of compromise (SHA-256)

a4fef0cd8b9f91923e6bf6bf357c229e57bb3b108b48ddc3bc9f0faa8f16b8db

Detection & response playbook

Credential / info stealer

Find it
Search your lockfiles and build artifacts for boxy-demo-tokens (version 35.2.7).
If you installed it — respond
boxy-demo-tokens 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 boxy-demo-tokens 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. boxy-demo-tokens on npm has been identified as a malicious package (version 35.2.7 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

IN-MAL-2026-015339

References

npmjs.com

Credits

Amazon Inspector · finder

Detect & block this

O3 blocks boxy-demo-tokens-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

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