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News

4sysops
4sysops.com > archives > terminalfix-turns-a-fake-captcha-into-a-stealthy-network-tunnel

TerminalFix turns a fake CAPTCHA into a stealthy network tunnel – 4sysops

3+ day, 14+ hour ago   (23+ words) A new TerminalFix campaign is using counterfeit Cloudflare CAPTCHA pages to trick Windows users into pasting PowerShell commands that ultimately turn infected P...

4sysops
4sysops.com > archives > kb5002914-breaks-excel-copy-and-paste-admins-face-rollback-dilemma

KB5002914 breaks Excel copy and paste—admins face rollback dilemma – 4sysops

3+ day, 14+ hour ago   (21+ words) Excel administrators are reporting that Microsoft’s KB5002914 security update breaks copy-and-paste, autofill, formula dragging, and in some cases VBA macros. T...

4sysops
4sysops.com > archives > microsoft-teams-remote-support-scam-drops-node-js-backdoor-and-pivots-to-domain-controllers

Microsoft Teams remote-support scam drops Node.js backdoor and pivots to domain controllers – 4sysops

4+ day, 18+ hour ago   (22+ words) Microsoft has identified a hands-on intrusion campaign in which attackers impersonate IT staff through Microsoft Teams, persuade users to grant remote control,...

4sysops
4sysops.com > archives > open-source-cleaner-bleachbit-hardens-secure-file-wiping

Open-source cleaner BleachBit hardens secure file wiping – 4sysops

5+ day, 3+ min ago   (23+ words) BleachBit is a free, open-source privacy and system-cleanup utility for Windows, Linux, and macOS. It removes temporary files, browser traces, caches, logs, and...

4sysops
4sysops.com > archives > fake-software-installers-use-msiexec-to-bypass-defenses-and-persist-on-windows

Fake software installers use msiexec to bypass defenses and persist on Windows – 4sysops

6+ day, 17+ hour ago   (21+ words) Microsoft is tracking an active fake software campaign that regenerates malicious archives behind familiar download filenames, then uses Windows components such...

4sysops
4sysops.com > archives > critical-cisco-nexus-9000-flaw-opens-unauthenticated-root-access

Critical Cisco Nexus 9000 flaw opens unauthenticated root access – 4sysops

1+ week, 3+ day ago   (24+ words) Cisco has patched CVE-2026-20212, a critical Nexus 9000 vulnerability rated 9.8 that lets an unauthenticated remote attacker execute code as root through TCP po...

4sysops
4sysops.com > archives > spring-ring-turns-microsoft-teams-calls-into-a-path-to-domain-compromise

Spring Ring turns Microsoft Teams calls into a path to domain compromise – 4sysops

1+ week, 3+ day ago   (27+ words) Spring Ring attackers used fake Microsoft Teams support accounts to target more than 150 employees at at least 10 organizations, turning live calls into a way t...

4sysops
4sysops.com > archives > sift-scans-microsoft-365-slack-and-jira-for-forgotten-secrets

Sift scans Microsoft 365, Slack, and Jira for forgotten secrets – 4sysops

1+ week, 4+ day ago   (23+ words) Sift, a free open-source command-line tool from Stratus Security, searches for passwords, API keys, and other secrets across local storage, Windows file shares,...

4sysops
4sysops.com > archives > terminalfix-turns-fake-cloudflare-captchas-into-windows-network-footholds

TerminalFix turns fake Cloudflare CAPTCHAs into Windows network footholds – 4sysops

1+ week, 5+ day ago   (23+ words) TerminalFix, a new ClickFix variant, is using fake Cloudflare Turnstile CAPTCHAs to make victims run PowerShell commands that install a persistent reverse tunne...

4sysops
4sysops.com > archives > 19-chrome-and-edge-extensions-turn-into-modular-crypto-stealers

19 Chrome and Edge extensions turn into modular crypto stealers – 4sysops

2+ week, 2+ day ago   (23+ words) A campaign dubbed Superior has compromised 19 Chrome and Edge extensions with a modular malware framework that can drain cryptocurrency wallets, steal credentia...