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Sys-Admin Up
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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)
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System_Design_ByteByteGo_PDF.pdf
37.8 MB
Big Collection for System Designers

🔸 What are database isolation levels
🔸 What is IaaS/PaaS/SaaS
🔸 What is SSO (Single Sign-On)
🔸 How to store passwords safely in the database
🔸 How does HTTPS work
🔸 ..and more and more….
An Introduction into Sleep Obfuscation

The goal of this post is to break down this technique:

https://dtsec.us/2023-04-24-Sleep/
Hiding in Plain Sight: Unlinking Malicious DLLs from the PEB

In this post, we take a look at an anti-forensics technique that malware can leverage to hide injected DLLs. We dive into specific details of the Windows Process Environment Block (PEB) and how to abuse it to hide a malicious loaded DLL:

https://blog.christophetd.fr/dll-unlinking/
Forwarded from Sys-Admin InfoSec
 
OpenBLD - Next Stage to Growth with ClouDNS

GeoDNS and Global Anycast DNS features from ClouDNS - it as a brilliant opportunity for additional OpenBLD Performance and Availability

Today ClouDNS supported OpenBLD DNS and provided own features for free:
• Anycast DNS service and Anycast GeoDNS servers
• DDoS Protection
• DNS Failover checks
• EDNS-client-subnet support
• and more...

ClouDNS providing flexible tools for managements services and very affordable pricing plans and it is I like it very much.

This can be a key milestone in the development phase of the OpenBLD project, it is a next stage for growth. I have special domain name for OpenBLD DNS project, may be it is a "that very moment"...

• All ClouDNS features you can found on ClouDNS Site
• How to protect for your self and family with OpenBLD Here
Sys-Admin Up pinned «  OpenBLD - Next Stage to Growth with ClouDNS GeoDNS and Global Anycast DNS features from ClouDNS - it as a brilliant opportunity for additional OpenBLD Performance and Availability Today ClouDNS supported OpenBLD DNS and provided own features for free:…»
Microsoft-Extractor-Suite - Powershell tool designed to streamline the process of collecting data and information from various sources

- Unified Audit Log
- Admin Audit Log
- Mailbox Audit Log
- Mailbox Rules
- Transport Rules
- Message Trace Logs
- Azure AD Sign-In Logs
- Azure AD Audit Logs
- Registered OAuth applications in Azure AD

https://github.com/invictus-ir/Microsoft-Extractor-Suite
ETWHash - small C# tool used during Red Team engagements, that can consume ETW SMB events and extract NetNTLMv2 hashes for cracking offline

https://labs.nettitude.com/blog/etwhash-he-who-listens-shall-receive/
Modern Test-Driven Development in Python

Testing production grade code is hard. Sometimes it can take nearly all of your time during feature development. What's more, even when you have 100% coverage and tests are green, you still may not feel confident that the new feature will work properly in production:

https://testdriven.io/blog/modern-tdd/