MisterioLNK: Open-Source Builder For Malicious Loaders

MisterioLNK is an open-source Windows loader builder that generates obfuscated BAT, CMD, HTA, VBS, and LNK loaders to download and execute payloads; Cyble's analysis shows threat actors are using it to deploy Remcos RAT, DC RAT, and BlankStealer while many generated samples evade detection, and the report includes technical details, sample detection results, IoCs, MITRE ATT&CK mappings, and mitigation recommendations.