Brickstorm Strikes: China-Linked Malware Hits U.S. Tech and Legal Sectors with Undetected Data Theft!
Google warns of a Brickstorm backdoor targeting U.S. legal and tech sectors, spying undetected for over a year. This China-linked malware steals data, exploits zero-days, and cleverly mimics legitimate processes. If Brickstorm were any stealthier, it would have its own ninja costume!

Hot Take:
Holy moly, it seems the Brickstorm malware is making waves, and not the fun kind you ride at the beach. It’s more like those rogue waves that sneak up on you, steal your data, and leave you wondering where your favorite surfboard went. China-linked APTs are apparently playing a long game of hide and seek, but instead of hiding behind the couch, they’re cozying up inside U.S. tech and legal firms, filing away sensitive data like it’s a Netflix watchlist. It’s time for cybersecurity professionals to put on their detective hats and bust out the magnifying glass—or maybe just Mandiant’s scanner script will do the trick. Stay vigilant, folks, because Brickstorm is in town, and it’s not bringing any bricks for your garden wall.
Key Points:
- China-linked group UNC5221 uses Brickstorm malware to spy on U.S. tech and legal sectors.
- Brickstorm is a Go-based backdoor capable of multiple stealthy operations.
- The malware often remains undetected for over a year due to its sophisticated tactics.
- Recent attacks involve stealing high-privilege credentials and exfiltrating emails.
- Mandiant has released a scanner script to help detect Brickstorm activity.