Author: AI Research Note Date: 2026-04-14 Subject: Cybersecurity, Malware Distribution Abstract The rise of free streaming platforms has been paralleled by an increase in "repackaging" attacks, wherein legitimate media player software or streaming tools are modified to include hidden payloads. This paper introduces the term StreamRepack to describe the specific technique of taking open-source or widely distributed streaming clients (e.g., VLC, Kodi, Stremio add-ons) and recompiling or wrapping them with droppers, information stealers, or cryptocurrency miners. We analyze the infection chain, common indicators of compromise (IOCs), and mitigation strategies. 1. Introduction Illegal or ad-supported streaming sites often prompt users to download a "necessary codec," "updated player," or "custom launcher." In a StreamRepack attack, the attacker downloads a legitimate streaming application, decompiles or extracts it, injects malicious code into its resources or executable, and then redistributes the modified package via torrents, fake update pop-ups, or malvertising campaigns.