LWA-2026-5966 MAL-2026-6461 ↗ confirmed malware

easy-string-kit232@1.0.8

Malicious code in easy-string-kit232 (npm)

T1059.004 · Unix ShellT1082 · System Information DiscoveryT1041 · Exfiltration Over C2 ChannelT1071.001 · Web Protocols

Analysis

easy-string-kit232@1.0.8 contains a postinstall hook that exfiltrates system data. Upon install, the script runs `ls -la /data/logs/` and POSTs the directory listing to an attacker-controlled host at `hxxp://3dhd6wwmusbh04m22igmzvb4hvnmblza[.]oastify[.]com/data`. The package publishes legitimate-looking string utility functions (camelCase/kebab-case conversion, truncation, slugify) as a cover while the install hook performs system reconnaissance.

analyzed by
Leitwacht
first seen
Jun 25, 2026, 09:56 AM
analyzed
Jun 25, 2026, 09:57 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.