NSA Warns of Sandworm Backdoor Attacks on Mail Servers

The Russian spy group, a.k.a. BlackEnergy, is actively compromising Exim mail servers via a critical security vulnerability.

The Russia-linked APT group Sandworm has been spotted exploiting a vulnerability in the internet’s top email server software, according to the National Security Agency (NSA).

The bug exists in the Exim Mail Transfer Agent (MTA) software, an open-source offering used on Linux and Unix-like systems. It essentially receives, routes and delivers email messages from local users and remote hosts. Exim is the default MTA included on some Linux distros like Debian and Red Hat, and Exim-based mail servers in general run almost 57 percent of the internet’s email servers, according to a survey last year.

The bug (CVE-2019-10149) would allow an unauthenticated remote attacker to execute commands with root privileges on an Exim mail server, allowing the attacker to install programs, modify data and create new accounts. It’s also wormable; a previous campaign spread cryptominers automatically from system to system using a port sniffer. The bug was patched last June.

The NSA this week released a cybersecurity advisory on new exploit activity from Unit 74455 of the GRU Main Center for Special Technologies (GTsST), a division of the Russian military intelligence service, a.k.a. Sandworm, a.k.a. BlackEnergy. The APT has been linked to the Industroyer attack on the Ukrainian power grid as well as the infamous NotPetya attacks. According to Kaspersky, the group is part of a nexus of related APTs that also includes a recently discovered group called Zebrocy

#government #web security #security

What is GEEK

Buddha Community

NSA Warns of Sandworm Backdoor Attacks on Mail Servers
Hal  Sauer

Hal Sauer

1591448040

How to Quickly Set Up a Mail Server on CentOS 7 with Modoboa

Setting up a mail server on Linux from scratch is a pain in the neck. This tutorial is going to show you how to quickly set up your own email server on CentOS 7 with Modoboa, saving you lots of time and headaches. Modoboa is a free and open-source mail hosting and management platform designed to work with Postfix SMTP server and Dovecot IMAP/POP3 server.

Modoboa is written in Python, released under the terms of ISC license. At the time of writing, the latest version is v1.14.0, released on July 5, 2019. Main features of Modoboa are as follows

#mail server #centos #centos server #linux #mail server #modoboa

Set Up a Full-Featured Mail Server on CentOS 8 with iRedMail

Setting up your own email server on Linux from scratch is a pain in the butt if you are not an advanced user. This tutorial will be showing you how to use iRedMail to quickly set up a full-featured mail server on CentOS 8, saving you lots of time and headaches.

What is iRedMail?
iRedMail is a shell script that automatically installs and configures all necessary mail server components on your Linux/BSD server, thus eliminating manual installation and configuration. With iRedMail, you can easily create unlimited mailboxes and unlimited mail domains in a web-based admin panel. Mailboxes can be stored in MariaDB/MySQL, PostgreSQL database, or OpenLDAP. The following is a list of open-source software that will be automatically installed and configured by iRedMail.

#centos #mail server #centos server #iredmail #linux #mail server

Hal  Sauer

Hal Sauer

1591471620

Quickly Set Up a Mail Server on Debian 9 Stretch with Modoboa

Setting up a mail server on Linux from scratch is a pain in the neck. This tutorial is going to show you how to quickly set up your own email server on Debian 9 Stretch with Modoboa, saving you lots of time and headaches. Modoboa is a free and open-source mail hosting and management platform designed to work with Postfix SMTP server and Dovecot IMAP/POP3 server.

#mail server #debian #debian server #linux #mail server #modoboa #self hosted

Ray  Patel

Ray Patel

1625843760

Python Packages in SQL Server – Get Started with SQL Server Machine Learning Services

Introduction

When installing Machine Learning Services in SQL Server by default few Python Packages are installed. In this article, we will have a look on how to get those installed python package information.

Python Packages

When we choose Python as Machine Learning Service during installation, the following packages are installed in SQL Server,

  • revoscalepy – This Microsoft Python package is used for remote compute contexts, streaming, parallel execution of rx functions for data import and transformation, modeling, visualization, and analysis.
  • microsoftml – This is another Microsoft Python package which adds machine learning algorithms in Python.
  • Anaconda 4.2 – Anaconda is an opensource Python package

#machine learning #sql server #executing python in sql server #machine learning using python #machine learning with sql server #ml in sql server using python #python in sql server ml #python packages #python packages for machine learning services #sql server machine learning services

Brain  Crist

Brain Crist

1600347600

SCHEMAS in SQL Server -MS SQL Server – Zero to Hero Query Master

Introduction

This is part 3 of “MS SQL Server- Zero to Hero” and in this article, we will be discussing about the SCHEMAS in SQL SERVER. Before getting into this article, please consider to visit previous articles in this series from below,

A glimpse of previous articles
Part 1

In part one, we learned the basics of data, database, database management system, and types of DBMS and SQL.

Part 2
  • We learned to create a database and maintain it using SQL statements.
  • Best practice methods were also mentioned.

#sql server #benefits of schemas #create schema in sql #database schemas #how to create schema in sql server #schemas #schemas in sql server #sql server schemas #what is schema in sql server