LWA-2026-11612 confirmed malware

tsrml612@1.14.0

Malicious code in tsrml612 (npm)

T1552.001 · Credentials In FilesT1082 · System Information DiscoveryT1041 · Exfiltration Over C2 ChannelT1071.001 · Web Protocols

Analysis

tsrml612 is a heavily-obfuscated "logging" library whose default transport connects to a remote MongoDB using an AES-encrypted connection string embedded in the package and decrypted at runtime. Its checkEnv() API enumerates every environment variable in process.env (including credentials and API tokens) and ships them as log records to that remote database (db "remote_logs", collection "log_entries"). The collection name is deliberately chosen to avoid colliding with collections in a target database. Importing the library and calling checkEnv() exfiltrates the host's environment variables to the attacker-controlled MongoDB.

analyzed by
Leitwacht
first seen
Aug 25, 2026, 01:50 PM
analyzed
Aug 25, 2026, 01:53 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.