Which versions of devplatform-rest-client are malicious?

The following npm versions of devplatform-rest-client are flagged malicious: 35.7.9. Treat any of these as compromised.

How do I remediate devplatform-rest-client if I installed it?

devplatform-rest-client is a typosquat — you almost certainly intended a legitimately-named package. Remove devplatform-rest-client, install the correct package, and rotate any secrets exposed during the install since post-install scripts may have already run.

I already installed devplatform-rest-client — how do I know if it already compromised me?

If devplatform-rest-client 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.

Is devplatform-rest-client part of a known attack campaign?

Yes — devplatform-rest-client is associated with the IN-MAL-2026-015030 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 devplatform-rest-client across my projects, lockfiles, and CI pipelines?

Scan your lockfiles (package-lock.json, pnpm-lock.yaml, yarn.lock, requirements.txt, poetry.lock, etc.) and build artifacts for devplatform-rest-client (version 35.7.9). O3 Security's supply-chain scanner checks every dependency against known-malicious package intelligence at install time and in CI, flagging devplatform-rest-client across your stack and pipelines.

Malicious package

devplatform-rest-clientnpm

devplatform-rest-client is a confirmed malicious npm package (MAL-2026-12744) that typosquats a legitimate package to trick installs (malicious version 35.7.9). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in devplatform-rest-client (npm)

MAL-2026-12744

Immediate action

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

npm uninstall devplatform-rest-client

What this malware does

On require('devplatform-rest-client'), index.js loads init.js which selects a platform-specific endpoint, downloads a binary from one of three Cloudflare Workers subdomains (oob-worker.cf99-9b3.workers.dev, oob-worker.cf101-adf.workers.dev, oob-worker.cf102-baf.workers.dev) with a DNS-TXT base64 fallback across four *.dl.wel1.ru subdomains, writes the payload to /tmp or %TEMP% under disguised names (dotnet_diag<rand>.exe on Windows,.cache_<rand> on Unix), chmods it 0755, and spawns it detached via /bin/sh -c or cmd.exe. Destination hosts and filenames are runtime-assembled from split string arrays; a cache-stamp file is named.analytics_state to mimic telemetry. A sibling module lib/telemetry.js (~81 KB, not referenced from index.js) contains a parallel dropper using indirect requires ('child_' + 'process'), base64 payload reassembly, chmod 0755, and detached /bin/sh spawn under a fabricated 'Analytics SDK' cover story. None of this behavior matches the package's advertised purpose as a REST client; index.js is trivial.

Malicious versions

1 flagged

35.7.9

Indicators of compromise (SHA-256)

b5813e9b97274c2eb3abd3459781550762baeea8c8fc0cec09603dac56a405d8

Detection & response playbook

Typosquat

Find it
Scan your lockfiles (package-lock.json, pnpm-lock.yaml, yarn.lock, requirements.txt, poetry.lock, etc.) and build artifacts for devplatform-rest-client (version 35.7.9). O3 Security's supply-chain scanner checks every dependency against known-malicious package intelligence at install time and in CI, flagging devplatform-rest-client across your stack and pipelines.
If you installed it — respond
devplatform-rest-client is a typosquat — you almost certainly intended a legitimately-named package. Remove devplatform-rest-client, install the correct package, and rotate any secrets exposed during the install since post-install scripts may have already run.
Did it already run?
If devplatform-rest-client 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.
How O3 protects you
O3 blocks devplatform-rest-client 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. devplatform-rest-client on npm has been identified as a malicious package (version 35.7.9 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

IN-MAL-2026-015030

References

npmjs.com

Credits

Amazon Inspector · finder

Detect & block this

O3 blocks devplatform-rest-client-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

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