LWA-2026-11644 confirmed malware

supersignaturenature@1.0.5

Malicious code in supersignaturenature (npm)

T1195.002 · Compromise Software Supply ChainT1059.007 · JavaScriptT1105 · Ingress Tool Transfer

Analysis

supersignaturenature@1.0.5 is a trojanized clone of the Theta blockchain SDK. On import/require it decrypts an embedded token (DES, hardcoded password "password") — sourced from the `manager-thedate` dependency in the ESM build, or from `node_modules/tchain-api/apps/docs/app/rsa.db` in the CJS/UMD builds — and pipes the decrypted string into a detached `node` subprocess via stdin, executing it as code. The detached child runs with stdio ['pipe','ignore','ignore'] and is unref'd so it outlives the parent. The decrypted payload's contents are not visible statically, but the staging mechanism executes attacker-controlled code in a background node process on every import.

analyzed by
Leitwacht
first seen
Aug 26, 2026, 03:55 PM
analyzed
Aug 26, 2026, 03:56 PM

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Independently detected by the Leitwacht supply-chain probe. IOCs are defanged. Published CC0. Think this is a mistake? See the dispute policy.