Daily Edition · Page 5

THE DAILY INDEX

Technology, AI, software, security, crypto and business

ATTACKS & VULNERABILITIES

TLDR InfoSec

GOOGLE CHROME ZERO-DAY CVE-2025-2783 EXPLOITED BY TAXOFF TO DEPLOY TRINPER BACKDOOR

TaxOff threat actors exploited a Google Chrome zero-day vulnerability (CVE-2025-2783) in March to deploy the Trinper backdoor through phishing emails disguised as forum invitations. The backdoor, written in C++, uses multithreading to steal files, capture keystrokes, and maintain command-and-control communications with remote servers. Google patched the vulnerability after Kaspersky reported the exploitation. Researchers suspect TaxOff may be connected to another hacking group called Team46 based on similar attack patterns.

STARTING A SECURITY PROGRAM FROM SCRATCH (OR RE-STARTING)

This post provides a roadmap for growing a new or existing program through four phases of maturity. The first phase focuses on establishing the basics by appointing a Head of Security, establishing a governance process, conducting a breach assessment, and acting on the most critical results. The second phase focuses on comparing the organization's current state with established frameworks, developing a plan to close gaps, hiring MSSPs, and building a team. Phases 3 and 4 focus on furthering organizational maturity by establishing program management and aligning with business objectives, establishing continuous monitoring and guardrails, increasing resiliency, and training the team.

SECURE ENCLAVES FOR OFFENSIVE OPERATIONS (PART II)

This post demonstrates how to exploit vulnerable Windows Secure Enclaves (VBS) by leveraging read-write primitives to achieve VTL1 code execution through ROP chaining and function table manipulation. It shows how CVE-2023-36880 and CVE-2024-21423 can be exploited in Microsoft Edge's preferences enclave to patch the VertValidTargetTable, enabling arbitrary function calls within the secure environment. The research resulted in practical sleep masking techniques for malware that hide implant memory from EDR detection by storing code in VTL1 while the implant sleeps, which has been integrated into the Outflank C2 and Beacon Booster tools.

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