Cyber Threat Intel Daily Briefing — 2026-09-04

CYBER THREAT INTEL

DAILY BRIEFING · 2026-09-04 12:15 UTC · REPORT BRIEF-20260904-121506

OPEN // LE

01

BraZetsu Malware Turns Compromised Windows Hosts Into Criminal Marketplace Inventory

Cybersecurity researchers have disclosed details of a sophisticated Python-based Windows malware framework called BraZetsu that fuels an underground marketplace commercializing access to compromised hosts. "Unlike the standard infostealer model, BraZetsu is a comprehensive master toolkit that empowers Initial Access Brokers (IABs) by turning compr

SRC: The Hacker News Thu, 03 Sep 2026 20:56:47 +0530 https://thehackernews.com/2026/09/brazetsu-malware-turns-compromised.html

02

Microsoft: KB5120998 mouse reset bug affects only non-English PCs

Microsoft says a known issue that reverts mouse settings after installing the KB5120998 August 2026 preview update affects only non-English Windows 11 systems. […]

SRC: BleepingComputer Thu, 03 Sep 2026 11:22:33 -0400 https://www.bleepingcomputer.com/news/microsoft/microsoft-kb5120998-mouse-reset-bug-affects-only-non-english-pcs/

03

Capsule Security Launches ‘AI Circuit Breaker’ to Stop Rogue Agents

New models, trained using NVIDIA Nemotron 3 Ultra, aim to catch rogue agent behavior before it executes, without the latency of large-model review. The post Capsule Security Launches ‘AI Circuit Breaker’ to Stop Rogue Agents appeared first on SecurityWeek.

SRC: SecurityWeek Thu, 03 Sep 2026 15:15:00 +0000 https://www.securityweek.com/capsule-security-launches-ai-circuit-breaker-to-stop-rogue-agents/