Critical Malware Feed Entry Detected 2026-07-02
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
@rubytech/[email protected] published to npm, flagged by codelake scanners on 2026-07-02 21:30 UTC.
Detector rules that fired on this package:
- Lifecycle script makes a file executable — common to downloaded-binary droppers (hook: prepublishOnly)
behavior.scripts.chmod-exec - Package ships a private key / certificate file: payload/platform/lib/entitlement/rubytech-pubkey.pem — secret/credential leak via the registry
behavior.shipped.credential-file - 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 loads a module from a non-literal name — opaque dependency
behavior.static.dynamic-require - Source issues a PUT/POST request reading local files, with a sensitive source or suspicious destination — outbound file-upload exfil
behavior.static.exfil-outbound-upload - 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 collects host/identity fingerprint (hostname/userInfo/networkInterfaces) and makes an outbound call — recon beacon
behavior.static.recon-beacon - Source reads a credential-shaped env var and exfiltrates it (encoding / file-harvest / C2 context) alongside an outbound call
behavior.static.secret-exfil - Source spawns a LOLBin download/stager tool (curl/wget/certutil/bitsadmin/Invoke-WebRequest/iwr/nc/ncat) from a child process — stager pattern
behavior.static.shell-download-exec - Source references a C2 / exfil host (Telegram bot API, ngrok, webhook.site, requestbin, oast/interactsh, transfer.sh) — near-exclusive to malware
behavior.static.suspicious-host
This is an auto-generated entry in the codelake malware feed. Hand-curated deep case studies live on /advisories.