VerdantBamboo used BRICKSTORM, PLENET, and AGENTPSD after an 18-month breach, enabling stealthy Linux appliance access.

A Chinese espionage group tracked as UNC5221 has been accessing Microsoft 365 environments using the Brickstorm backdoor and ...

The Brickstorm backdoor and unidentified malware called Plenet and AgentPSD have been used by a Chinese espionage cell known ...

SDPG is the main contribution. It extends GRPO with an exact per-token forward KL between the actor (without privileged context) and itself conditioned on privileged context c: ...