Win server mining process
a new customer recently consulted with sine security company, saying that his server often fails to open the website of the card, and the remote connection to the server is extremely slow. Sometimes the Ping value reaches 300-500, and he often switches. After listening to the customer's words,
will generally judge that he has been attacked by CC + DDoS mixed traffic, It's strange to say that there is no traffic attack on the computer room. It's not a traffic attack, but it also causes the server card and website to fail to open. What kind of attack is this? In order to solve the problem of
client server card, we immediately arranged a security engineer to carry out security detection and deployment on his Linux server
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mining Trojan horse is also designed. If the mining process is forced to stop by customers, it will automatically start to continue mining to achieve uninterrupted mining.
careful inspection shows that it is through setting the hourly task plan, remotely downloading shell mining Trojan horse, and then executing, Check whether the current process exists or not. If not, start the Trojan horse to mine
a detailed security inspection was carried out on the client's Linux server. It was found that fortunately, there was no encrypted server data, and the worm was infected with the disease through the security detection and analysis of our security engineers, we found that the server uses Apache Tomcat environment, the open architecture of the platform is JSP + Oracle database, and Apache Tomcat uses the version of 2016, which leads to the serious remote command execution vulnerability of Apache, Through this vulnerability, the intruder can directly invade the server and get the administrator permission of the server,
virus. If the data was encrypted, the loss would be great. The client was a platform, and the client's data was very important. After finding out the mining Trojan horse,
do customers need to know how the server is attacked? Was the Trojan horse uploaded? It can prevent the attack
in the later stage
sine security engineer immediately repairs the Apache vulnerability and clears the Trojan horse. So far, the problem has been solved, the client server
runs stably, and the network station opens normally
graphics card, motherboard, power supply, CPU, memory, hard disk (more than 60g SSD is recommended), extension cable, adapter cable, etc
among them, the graphics card determines the speed of mining, and the motherboard and power supply largely determine the stability of mining machine operation.
if you have to check, it's also simple. You can see if there are unusual system processes
however, you can't deal with your own security thoroughly. It's better to find a professional security company (such as guardian).
Backup the host data, and then re install the system
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do not use the old version of the system. It is recommended that after re installing the system in 2012 or 2016
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delete other accounts except the administrator, and then install 360 security guard to patch
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install the server security software
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As a developing socialist country, China's national conditions and characteristics determine the development direction of China's real estate to a certain extent
as a pillar instry in China, real estate is also an economy most affected by policies to a certain extent,
so the tendency of policies will directly affect the trend of housing prices in the region in the future
Tongzhou, as the sub center of Beijing, enjoys the best policy tendency of the whole Beijing and even the whole countryfrom this point alone, we can directly determine that the real estate in Tongzhou is the most valuable real estate in Beijing
(of course, which real estate is most suitable for investment depends on other conditions of the real estate)