Another BRICKSTORM: Stealthy Backdoor Enabling Espionage into Tech and Legal Sectors

Written by: Sarah Yoder, John Wolfram, Ashley Pearson, Doug Bienstock, Josh Madeley, Josh Murchie, Brad Slaybaugh, Matt Lin, Geoff Carstairs, Austin Larsen Introduction Google Threat Intelligence Group (GTIG) is tracking BRICKSTORM malware activity, which is being used to maintain persistent access to victim organizations in the United States. Since March 2025, Mandiant Consulting has responded to intrusions across a range of industry verticals, most notably legal services, Software as a Service