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*출처 : https://community.hortonworks.com/questions/191898/hdp-261-virus-crytalminer-drwho.html
HDP 2.6.1 Virus CrytalMiner (dr.who)
Hi!
I'm using HDP 2.6.1. Every ok, but recently, I has problem with Yarn application. I has found type of virus. It work flow:
1. Some service submit yarn application with user name "dr.who"
2. When submit yarn application, on worker will run script container. Script have malware to download Trojan CrytalMiner.
3. Trojan will run via command: /tmp/java -c /tmp/w.conf.
I has kill job, but it will re-run after about 15 minute. I don't know where submit yarn application with user "dr.who"!, Anybody has same problem?. Please check and show how to remove this!
Many thank!
We've recently sent out a security notification regarding the same.
1. Stop further attacks:
a. Use Firewall / IP table settings to allow access only to whitelisted IP addresses for Resource Manager port (default 8088). Do this on both Resource Managers in your HA setup. This only addresses the current attack. To permanently secure your clusters, all HDP end-points ( e.g WebHDFS) must be blocked from open access outside of firewalls.
b. Make your cluster secure (kerberized).
2. Clean up existing attacks:
a. If you already see the above problem in your clusters, please filter all applications named “MYYARN” and kill them after verifying that these applications are not legitimately submitted by your own users.
b. You will also need to manually login into the cluster machines and check for any process with “z_2.sh” or “/tmp/java” or “/tmp/w.conf” and kill them.
Hortonworks strongly recommends affected customers to involve their internal security team to find out the extent of damage and lateral movement inside network. The affected customers will need to do a clean secure installation after backup and ensure that data is not contaminated.
Thanks Sandeep!
I have use firewall block port for yarn resource (8088)!. And all yarn application from user dr.who has gone!
