Sys-Admin Up – Telegram
Sys-Admin Up
1.06K subscribers
132 photos
4 videos
127 files
2.23K links
InfoSec, Hacks, Perks, Tools, IT/IS Courses, CVE… Contains part of the news that was not included in the Sys-Admin & InfoSec Channel (@sysadm_in_channel)
Download Telegram
Forwarded from Sys-Admin InfoSec
Как растет и кто помогает расти OpenBLD.net (Q2 2023)
 
В экосистеме OpenBLD произошел эволюционный всплеск, теперь это:
— Anycast/GeoDNS, DNSSEC, DNS-over-HTTPS, DNS-over-TLS, DNS

Благодаря этому появились два новых сервиса - Adaptive (ADA), Strict (RIC) которые заменят A-BLD, BLD (в чем отличие)

Настало время тестирования, я тестирую уже более двух недель и это пушка, кто использует OpenBLD пробуй заменить:

🔸 DoH: https://a-bld.sys-adm.in/dns-query на https://ada.openbld.net/dns-query
🔸 DoT: a-bld.sys-adm.in на ada.openbld.net

🔹 DoH: https://bld.sys-adm.in/dns-query на https://ric.openbld.net/dns-query
🔹 DoT: bld.sys-adm.in на ric.openbld.net

В течении недели, мб двух A-BLD будет полностью смерджен с ADA и перестанет существовать как таковой. Один сервер (109.234.39.72) будет заменен другим (46.151.29.15) более шустрым. Начинай тестирование уже сейчас.

Этого не было бы без поддержки. В этом году OpenBLD проект поддержали:
— Сервисно: ClouDNS, Gcore, JetBrains, UptimeRobot
— Информационо: AST Cyber Lab, Core24/7, qCloudy
— Отдельное спасибо Казахстанским хостерам: Unihost.kz, GOhost.kz 🤜️️️️️️🤛️️️️️️

Ты тоже можешь сделать свой вклад в открытый сервис по фильтрации вредоносного контента, пиши @sysadminkz

Всем Peace ✌️
Sys-Admin Up pinned «Как растет и кто помогает расти OpenBLD.net (Q2 2023)   В экосистеме OpenBLD произошел эволюционный всплеск, теперь это: — Anycast/GeoDNS, DNSSEC, DNS-over-HTTPS, DNS-over-TLS, DNS Благодаря этому появились два новых сервиса - Adaptive (ADA), Strict (RIC)…»
This media is not supported in your browser
VIEW IN TELEGRAM
What is ARP Spoofing

ARP spoofing is a type of attack in which a malicious actor sends falsified ARP (Address Resolution Protocol) messages over a local area network. This results in the linking of an attacker’s MAC address with the IP address of a legitimate computer or server on the network.
Forwarded from Sys-Admin InfoSec
OpenBLD DNS prevented new malicious campaign that spreads through of Google Ads
 
Today I discovered a new malicious company that spreads through of Google Ads side...

In short - "Sponsored" link redirects to malicious site, and boom 💥 I felt "OpenBLD" effect!

OpenBLD.net DNS blocked for me browser-hijacking app which was distributing with Google Ads... Wow 💣, very unexpected and nice as I usually try to be more careful when surfing the internet.

Be safe with free and OpenBLD.net DNS 🤜🤛️️️️️️

• Look about of free and OpenBLD DNS service on project site - lab.sys-adm.in
• Страница проекта на русском - https://lab.sys-adm.in/ru

P.S. What is xg4ken and how to removal
Sys-Admin Up pinned «OpenBLD DNS prevented new malicious campaign that spreads through of Google Ads   Today I discovered a new malicious company that spreads through of Google Ads side... In short - "Sponsored" link redirects to malicious site, and boom 💥 I felt "OpenBLD" effect!…»
Fingerprint-Authentication-Brute-force_Attack.pdf
3.4 MB
Expose Smartphone Fingerprint Authentication to Brute-force Attack
MaccaroniC2 - Empowering Command & Control using AsyncSSH

MaccaroniC2 is a proof-of-concept Command and Control framework that utilizes the powerful AsyncSSH Python library which provides an asynchronous client and server implementation of the SSHv2 protocol and use PyNgrok wrapper for ngrok integration. This tool is inspired for a specific scenario where the victim runs the AsyncSSH server and establishes a tunnel to the outside, ready to receive commands by the attacker:

https://github.com/CalfCrusher/MaccaroniC2
Evading MDATP for Full Endpoint Compromise

The purpose of this article will be showcasing the full compromise of an up-to-date Windows 10 endpoint protected by Microsoft's EDR solution Windows Defender Advanced Threat for Endpoint:

https://www.fo-sec.com/articles/compromising-mdatp-endpoint
Firewall_Audit_Checklist.pdf
1004.7 KB
Six Best Practices Recommendations for Simplifying Firewall Compliance and Risk Mitigation, based on PCI DSS, ISO 27002
File Archiver In The Browser

This article explores a phishing technique that emulates a file archiver software in the browser while using a .zip domain:

https://mrd0x.com/file-archiver-in-the-browser/?no-cache=1
Forwarded from Sys-Admin InfoSec
/ Analysis of Amadey Bot Infrastructure Using Shodan

Here you'll see how to use a known c2 to craft additional queries based on html content and certificate information. In total, 12 unique servers will be identified:

https://embee-research.ghost.io/amadey-bot-infrastructure/
Dynamically program the kernel for efficient networking, observability, tracing, and security

this is eBPF… mf… where else to find time for all this..

https://ebpf.io/