Obsidian Plugin Abuse Unleashes Novel PHANTOMPULSE RAT

The Hacker News is flagging a sophisticated social engineering campaign that’s weaponizing Obsidian, the popular note-taking app, as an entry point. Attackers are exploiting Obsidian plugins to deliver a previously unknown Windows remote access trojan dubbed PHANTOMPULSE. This campaign, identified by Elastic Security Labs as REF6598, appears to be highly targeted, focusing on individuals within the finance and cryptocurrency sectors.

The TTPs (tactics, techniques, and procedures) involve tricking users into installing malicious Obsidian plugins, which then serve as the conduit for deploying the PHANTOMPULSE RAT. This novel approach bypasses traditional defenses by leveraging a trusted application’s extensibility features, a tactic that security pros know can be particularly nasty.