OpenSSF/OSV advisory MAL-2026-4712 confirms this npm version as malicious. Package name `warp-contracts-plugin-deploy-test` mimics the legitimate `warp-contracts-plugin-deploy` and copies its public API surface (lib/cjs/index.js re-exports DeployPlugin, CreateContractImpl, SourceImpl, Arweave/Ethereum signers identical to the genuine package). package.json declares `"preinstall": "./bin/install-deps"` where `bin/install-deps` is a 976,568-byte packed Linux ELF binary (sha256...
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OpenSSF Malicious Packages via OSV
Summary
Malicious code in warp-contracts-plugin-deploy-test (npm)
Details
Package name `warp-contracts-plugin-deploy-test` mimics the legitimate `warp-contracts-plugin-deploy` and copies its public API surface (lib/cjs/index.js re-exports DeployPlugin, CreateContractImpl, SourceImpl, Arweave/Ethereum signers identical to the genuine package). package.json declares `"preinstall": "./bin/install-deps"` where `bin/install-deps` is a 976,568-byte packed Linux ELF binary (sha256 36abd242ddaa27f0160c539377a0e92cf781c1695137850acc87e3892b436d36). The package self-describes as a TypeScript Warp Contracts deploy plugin — there is no native source tree, no node-gyp/binding.gyp, no documented purpose for shipping a Linux ELF helper. Readable strings in the binary (LIBBPF, PTRACE, NETLINK_DIAG, HTTP/1.1, https://, USERPROFILE) are inconsistent with any deploy-plugin function and consistent with a host-implant payload. On `npm install`, the binary runs with the installer's privileges, executing attacker-supplied compiled code that the scanner cannot inspect.
## Source: google-open-source-security (146faaf0d97c6a533a969bc3f3f117811f9317dc865ed4ab37f1679842ddeaae) This package was compromised as part of the IronWorm campaign. This campaign executes a malicious binary payload during installation via a preinstall hook. The payload is a Rust-built infostealer that targets developer environments, scanning for and harvesting credentials related to cloud providers, object storage, databases, source-control, package registries, and AI developer tools. It also targets cryptocurrency wallets, specifically injecting a malicious JavaScript hook into the Exodus desktop wallet to capture passwords and recovery phrases. Furthermore, the malware exhibits worm-like behavior by stealing GitHub and NPM credentials to push malicious updates to the victim's repositories and publish trojanized packages, and it uses an eBPF-based kernel rootkit to hide its processes and network connections on Linux systems.