ZeroFox Weekly Intelligence Brief – May 31, 2025

ZeroFox Weekly Intelligence Brief – May 31, 2025

ZeroFox’s Weekly Intelligence Briefing highlights the major developments and trends across the threat landscape, including digital, cyber, and physical threats. ZeroFox Intelligence is derived from a variety of sources, including—but not limited to—curated open-source accesses, vetted social media, proprietary data sources, and direct access to threat actors and groups through covert communication channels. Information relied upon to complete any report cannot always be independently verified. As such, ZeroFox applies rigorous analytic standards and tradecraft in accordance with best practices and includes caveat language and source citations to clearly identify the veracity of our Intelligence reporting and substantiate our assessments and recommendations. All sources used in this particular Intelligence product were identified prior to 6:00 AM (EDT) on May 29 2025; per cyber hygiene best practices, caution is advised when clicking on any third-party links.

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Global Dark Web Crackdown Targeting Online Drug and Criminal Networks

What we know:

• A global law enforcement operation has made 270 arrests of dark web vendors and buyers across 10 countries, dismantling networks trafficking in drugs, weapons, and counterfeit goods.

SilverRAT Source Code Briefly Exposed on GitHub

What we know:

• The full source code of SilverRAT, a remote access trojan (RAT), was briefly leaked on GitHub before being taken down. The leaked SilverRAT repository included its full source code, build instructions, and weaponized features.

Hackers Steal USD 223 Million from Cetus Protocol on Sui Blockchain

What we know:

• Hackers have stolen USD 223 million in cryptocurrency from decentralized exchange (DEX) Cetus Protocol operating on the Sui and Aptos blockchains.