Daily Edition · Page 2

THE DAILY INDEX

Technology, AI, software, security, crypto and business

ATTACKS & VULNERABILITIES

TLDR InfoSec

LOCKING YOUR SSH-AGENT EXPOSED LOCAL-ONLY KEYS UNTIL OPENSSH 10.5

OpenSSH 10.5 fixed a flaw introduced in version 10.4 where locking the ssh-agent disabled the check distinguishing local requests from forwarded ones, letting remote connections perform operations meant to stay local, including adding PKCS#11 tokens and bypassing destination-restricted keys, alongside a use-after-free in the ssh client and a broken authorized_keys "restrict" keyword that failed to block tunnel forwarding.

PROJECT CAV3RN CONTINUES: GOOGLE APPS SCRIPT AS C2 RELAY AND DNS-BASED C2 CHANNEL SELECTION

Kaspersky researchers uncovered an updated Project CAV3RN espionage framework targeting Israeli organizations that dynamically routes command-and-control traffic by inspecting DNS A-record responses to choose between direct HTTPS and a Google Apps Script relay. This evasive technique allows the malware to blend seamlessly with legitimate traffic before handing execution to an inter-component broker (⁠rnp.dll⁠) that orchestrates malicious modules. To detect this activity, defenders should flag anomalous ⁠script.google[.]com⁠ POST requests and hunt for associated infrastructure, specifically queries resolving to ⁠studiotikva[.]com⁠.

THE PERMANENT THREAT: ANALYZING AETERNUM'S BLOCKCHAIN-BASED C2 OPERATIONS AND COMPROMISES

Aeternum is a sophisticated malware loader that utilizes Polygon blockchain smart contracts over JSON-RPC to fetch encrypted command-and-control instructions. After decrypting these commands, the malware downloads secondary payloads from GitHub, including the XWorm RAT and XMRig miners, while a related Python variant specifically targets over 60 cryptocurrency wallets and browser extensions. Aeternum ultimately relies on hardcoded Telegram bot APIs for data exfiltration. Defenders should hunt for anomalous Telegram API traffic and outbound JSON-RPC calls originating from non-browser processes.

WE'RE OPEN-SOURCING OUR PRIVACY PROXY CLI

Cloudflare has open-sourced pvcli, a Rust-based diagnostic tool that handles full Oblivious HTTP (OHTTP) requests across relays, gateways, and targets in a single command to eliminate tedious manual binary parsing. Unlike single-protocol alternatives, the utility combines OHTTP, CONNECT proxying, and MASQUE support using a familiar curl-like syntax. This unified approach significantly accelerates incident response and debugging for engineers managing large-scale privacy deployments like Apple's Private Relay and Microsoft's Edge Secure Network VPN.

EXTENSION BANNED FOR STEALING AI CHATS RETURNS TO CHROME STORE, RESUMES MALICIOUS ACTIVITIES

Google pulled "AI Sidebar with DeepSeek, ChatGPT, Claude and more" in January after OX Security found it scraping ChatGPT/DeepSeek chats and sending them to external domains, with 300,000+ installs by then. It's back on the Chrome Web Store. Netskope found version 1.7.3.0 added 21 lines that open affiliate links on update events and hijack the uninstall URL for referral commissions.

THE MULTI-LAYERED DEFENSES THAT HARDEN CHROME AGAINST ABUSIVE NOTIFICATIONS

Chrome Security detailed a new defense-in-depth stack utilizing Firebase Cloud Messaging and Safe Browsing that successfully blocked over 7 billion abusive Android notifications per day in Q1. The multi-layered approach curtails coordinated spam networks by automatically revoking permissions for suspicious sites, analyzing malicious service worker activity signals, and throttling disruptive domains at the FCM server level to 1,000 messages per minute with HTTP 429 error responses.

TLDR IndexPage 2