LWA-2026-3888 confirmed malware

log-input@1.0.5

Malicious code in log-input (npm)

T1056.001 · KeyloggingT1041 · Exfiltration Over C2 ChannelT1071.001 · Web ProtocolsT1102 · Web ServiceT1567 · Exfiltration Over Web Service

Analysis

log-input@1.0.5 is a data-exfiltration module disguised as a logging library. Its index.js exports a prompt() function that reads stdin and a parse() function that POSTs the captured input to a hardcoded Telegram bot endpoint (api.telegram[.]org/bot<token>/sendMessage?chat_id=5737666369&text=...); the base64-encoded C2 URL decodes to send captured text to an attacker-controlled Telegram channel. There is no lifecycle hook — it exfiltrates when imported and called. The README even admits 'IT CAN LEAK YOUR DATA'.

analyzed by
Leitwacht
first seen
Jun 10, 2026, 10:13 AM
analyzed
Jun 10, 2026, 10:14 AM

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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.