Siberia glassware factory to mine bitcoin

Largest manufacturer of glass in Russia is going to spend ₽11 mln to initiate the first stage
17 March 2018   1675

Glassware plant Ekran in Novosibirsk has announced its plans to take part in cryptocurrency activity and invest ₽11 mln into its own Bitcoin mining farm. Such decision was made due to the presence of surplus space and electricity resources. This situation became possible as several years ago Ekran industrial park was established around the factory's site, and the occupied territory in sum got enormous. And so, for instance main building of an unoccupied school that is within the plant's territory is set to be repurposed for housing all of the mining equipment.

We are going to build a farm that will be used for mining cryptocurrencies there. Already, we have spent about 11 million rubles on a phase of the project. The mining facility will become operational by year’s end if the board approves the project.

 

Pavel Boboshik

President of the board of directors, Ekran

The region of Siberia has a direct access to a profusion of energy resources that makes the electricity so cheap. The latter in turn makes the region a pretty attractive place for mining operations.

Exim Mail Servers to Undergo Massive Attacks

Hackers are using fixed vulnerability, which was found last week, but still more than 3.6M mail servers in the global network remain potentially vulnerable
14 June 2019   326

Cybereason security researchers warned mail server administrators about the discovery of a massive automated attack that exploits a critical vulnerability (CVE-2019-10149) of Exim that was discovered last week. During the attack, hackers seek to execute their code as root and install malware for mining cryptocurrency on the server.

According to the Shodan service, more than 3.6 million mail servers in the global network remain potentially vulnerable, and are not updated to the latest release of Exim 4.92. About 2 million potentially vulnerable servers are located in the USA, 192 thousand in Russia. According to RiskIQ, version 4.92 has already switched 70% of servers to Exim.

Vulnerable Exim Servers
Vulnerable Exim Servers

Administrators are advised to urgently install updates that were prepared last week (Debian, Ubuntu, openSUSE, Arch Linux, Fedora, EPEL for RHEL / CentOS). If there is a defeated version of Exim in the system (from 4.87 to 4.91 inclusive), you need to make sure that the system is no longer compromised by checking the crontab for suspicious calls and to ensure that there are no additional keys in the /root/.ssh directory. The attack can also be indicated by the presence in the log of the firewall of activity from the hosts an7kmd2wp4xo7hpr.tor2web.su, an7kmd2wp4xo7hpr.tor2web.io and an7kmd2wp4xo7hpr.onion.sh, which are used for during the malware download process.

The first attacks on Exim servers were recorded on June 9th. By June 13, the attack became widespread. After exploiting the vulnerabilities through the tor2web gateways, the Tor hidden service (an7kmd2wp4xo7hpr) downloads a script that checks for OpenSSH (if not installed), changes its settings (allows root login and key authentication) and sets the root user for the root user access to the system via SSH.

After setting up the backdoor, a port scanner is installed in the system to identify other vulnerable servers. It also searches the system for existing mining systems that are deleted if detected. At the last stage, the own miner is loaded and registered in the crontab. The miner is loaded under the guise of an ico-file (in fact, is a zip-archive with the password "no-password"), in which the executable file in ELF format for Linux with Glibc 2.7+ is packed.