Critical Malware Feed Entry Detected 2026-08-20
Malware feed entry — detected by codelake scanners. This package was flagged malicious by our own detection pipeline. See the rules that fired and the package identifiers below. Full analysis, timeline and IOCs live on hand-curated advisories at /advisories; this page is the machine-generated receipt for the live feed.
Detection details
@yeaft/[email protected] published to npm, flagged by codelake scanners on 2026-08-20 09:41 UTC.
Detector rules that fired on this package:
- Source writes to an AI-agent config/instruction file (CLAUDE.md / .claude / .cursor / MCP config / copilot-instructions / agent rules) — agent-control-surface tampering
behavior.static.agent-config-tamper - Source spawns a child process with a non-literal command
behavior.static.child-spawn-dynamic - Source executes a string as code (new Function / vm.run* / setTimeout("...")) — dynamic-eval pattern
behavior.static.dynamic-exec - Source contains a hard-coded ephemeral URL (raw IP / .top / .xyz / pastebin / discord webhook)
behavior.static.hidden-fetch - File has high Shannon entropy — likely obfuscated / packed / encrypted payload
behavior.static.high-entropy - Source spawns a package-bundled native executable (local .exe/.dll/binary via __dirname/__filename) — native launcher; verify it is not a dropper
behavior.static.local-binary-spawn - Source spawns a package-bundled native executable detached/hidden (windowsHide/detached) — native-binary dropper
behavior.static.native-binary-dropper - Source assembles a string from short literal fragments ("ev"+"al") — no legit reason; classic keyword/command-hiding obfuscation
behavior.static.obfuscation-string-concat
OSV reference: MAL-2026-10723
This is an auto-generated entry in the codelake malware feed. Hand-curated deep case studies live on /advisories.