MAL-2026-12332

Dashboard / Malicious Package / MAL-2026-12332

MAL-2026-12332

Summary: Malicious code in @zahlen/checkout-angular (npm)

Details: Source: amazon-inspector (45fa3b05e748470cdc08e19b2e86efb8a34c85f155e5972c1b0c0598c150a0bd) The package's fesm2022 ESM entry (declared as `module` in package.json and executed on `import` of the library) ends with a trailing `eval(atob('...'))` payload that, once decoded, requires `child_process`, `http`, `https`, and `zlib` via `\uXXXX`-escaped identifier strings to hide the imports from static scanners. The loader queries an Ethereum contract at `0xa322E5f3D311D3080e6f0121063e9aDC2490Ef1a` through `https://eth.blockscout.com/api` (with public RPC fallbacks `1rpc.io/eth`, `eth.drpc.org`, `ethereum-rpc.publicnode.com`, `eth-mainnet.public.blastapi.io`) to read attacker-controlled host/port values from contract storage, then reaches those hosts over HTTP at paths `http://${host}:443/0x/cls` and `http://${host}:443/0x/ls` and passes the returned bytes to `child_process.spawn`. This is an EtherHiding remote-code-execution channel: consuming the library in any Node context that evaluates the ESM (SSR, build tooling, dev servers, tests) triggers on-chain-directed download and execution of arbitrary attacker code. The loader is unrelated to the package's advertised checkout functionality, is appended after the legitimate `export { ZahlenModule,... }` bundle, and is base64+unicode-obfuscated — hallmarks of an injected supply-chain payload rather than package feature code. Source: ghsa-malware (a3a38f34dcb95f0e345748ebb65454acd70b9fef5253e93f63e74c87b5278f23) Any computer that has this package installed or running should be considered fully compromised. All secrets and keys stored on that computer should be rotated immediately from a different computer. The package should be removed, but as full control of the computer may have been given to an outside entity, there is no guarantee that removing the package will remove all malicious software resulting from installing it.

References: https://www.npmjs.com/package/@zahlen/checkout-angular/v/0.1.4, https://github.com/advisories/GHSA-x4vv-h5rq-v2hm