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Sys-Admin InfoSec
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📢 Открытый практикум DevOps by Rebrain: IT-Quiz

Регистрация

Время:

26 Декабря (Вторник) в 19:00 по МСК

Программа:

• Решаем 3 задачки в онлайн-формате
• Получаем подарки за выполнение заданий
• Проводим розыгрыш New Year Sale by Rebrain

Ведёт:

Василий Озеров – Co-Founder REBRAIN. Руководит международной командой в рамках своего агентства Fevlake. Более 8 лет Devops практик.
/ The Cashback Extension Killer - Fake Chrome netPlus VPN Extensions

C2 domain target communications - Kazakhstan, Ukraine, Russia, Belarus, Pakistan...

https://reasonlabs.com/research/the-cashback-extension-killer

P.S. C2 domains already sended to OpenBLD.net 😡
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/ use-after-free vulnerability in the implementation in Linux kernel nf_tables

Openwall note: https://www.openwall.com/lists/oss-security/2023/12/22/6

Exploit prototype - https://www.openwall.com/lists/oss-security/2023/12/22/6/1
Forwarded from OpenBLD.net (Yevgeniy Goncharov)
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🚀 Glad to present the new release zDNS v0.1.3! 🎉

Following Zero Trust practices, I recently wrote and am slowly beginning to introduce new “blackhole” functionality into the OpenBLD.net DNS ecosystem

zDNS is a DNS server that puts security and control over DNS queries at the center. With new functionality, zDNS now supports regular expressions in hosts.txt files, allowing more flexibility in configuring allowed queries. Now you can use the power of regular expressions to precisely control permissions, including subdomains and patterns.

Main features:

🛑 Denies all DNS queries by default.
Allows you to configure allowed requests through the hosts.txt file.
🔄 Uses balancing strategies to ensure reliable operation with DNS servers.
🛠Easily customizable via YAML configuration.
🔜 Prometheus metrics coming soon

Additional protection of your infrastructure or testing requests with zDNS is possible and may be useful to you! Download the latest version here and start using a DNS server with powerful customization options:

https://github.com/m0zgen/zdns/tree/dev

#zDNS #DNS #Security #Release #News
Let’s Get Ready to Rumble!!

Let the leap year 🎄 bring only high profits and high success!)) Peace ✌️
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Forwarded from OpenBLD.net (Yevgeniy Goncharov)
Open Thank You Message.

First of all, thanks to all users of the OpenBLD.net service. Thank you for trusting, service using, contributing and providing feedback.

Some companies, like the people in them, also trust the service and support it with system resources and OSS licenses, which allows the service to grow, be faster, and expand points of presence around the world.

Thanks everyone. I also wrote an Open Tnak You Letter in my blog post to everyone who supported.

Everyone who wants to support, add their logo or name to the project website, support the OpenBLD.net project and receive this benefits.

Peace to all ✌️
/ Hyper-V RCE and Kerberos Bypass

MS released two fixes for..:

Windows Kerberos Security Feature Bypass Vulnerability

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-20674

Windows Hyper-V Remote Code Execution Vulnerability

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-20700
📢 Открытый практикум DevOps by Rebrain: Запуск Nginx и Angie в Docker

Регистрация

Время:

16 Января (Вторник) 19:00 МСК

Программа:

• Основы контейнеризации веб-сервера
• Зачем использовать контейнер для Nginx
• Особенности веб-сервера Angie и сравнение с Nginx
• Запуск Nginx и Angie в Docker-контейнерах
• Настройка конфигурации
• Работа с логами
• Хранение данных веб-приложения

Ведёт:

• Николай Лавлинский – Технический директор. Веб-разработчик более 15 лет. Спикер конференций HighLoad++, РИТ++. Специализация: ускорение сайтов и веб-приложений
/ Hundreds of Thousands of Dollars Worth of Solana Cryptocurrency Assets Stolen in Recent CLINKSINK Drainer Campaigns

- Overview of CLINKSINK Drainer Campaigns
- Initial Analysis of CLINKSINK
- Distribution of Stolen Solana Cryptocurrency Funds
- Multiple DaaS Offerings Use CLINKSINK
- Outlook and Implications
- YARA Rules

https://www.mandiant.com/resources/blog/solana-cryptocurrency-stolen-clinksink-drainer-campaigns
/ CVE-2023-36025 Exploited for Defense Evasion in Phemedrone Stealer Campaign

This blog delves into the Phemedrone Stealer campaign's exploitation of CVE-2023-36025, the Windows Defender SmartScreen Bypass vulnerability, for its defense evasion and investigates the malware's payload:

https://www.trendmicro.com/en_us/research/24/a/cve-2023-36025-exploited-for-defense-evasion-in-phemedrone-steal.html
Forwarded from OpenBLD.net (Yevgeniy Goncharov)
😡 OpenBLD.net growth with AlphaVPS

New OpenBLD points of presence have been added in the world thanks to AlphaVPS!

AlphaVPS.com - Fast & Cheap VPS, Cloud Servers and few servers from AlphaVPS stay which located in Bulgaria and Germany joined in to OpenBLD.net ecosystem.

As you know one of the our prioritites - fast DoH/DoT responses and 1GBit/s from AlphaVPS it is good base for this requirements.

One server already available for users (see status of Ada-h4), second server will be available in the next few days. Enjoy it 🚀

P.S. Few times ago I posted OpenBLD.net IPv6 Pre-Release notice, in few near weeks I'll plan implement DoH/DoT IPv6 for users in Europe, I'll tell about this later 😎...
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