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Mining Virus? xmr-stack [SOLVED]

Posted: Sun May 13, 2018 9:00 pm
by gee21
Hello

since 1-2 Weeks it run a process on my asustor 608t name: xmr-stack (using everytime 25-75% CPU of my NAS)

i killed the Process with putty (kill -9 PID) but after some hours it come back and use again 25-75% cpu....

what can i do? How can i protect against that? is it really a "mining cpu virus?"



Hope someone can help me....

Re: Mining Virus? xmr-stack

Posted: Tue May 15, 2018 10:07 pm
by gee21
Hello again

I found the Files today.... it was really a miner.... that used my NAS for mining process....

The Files was Saved in SERVER MAINDIR \tmp\

one file was named with: pools.txt (see attachment) ---> You see the Wallet ID and the Server Adress...

another file was called: xmr-stack

i deleted this files and since then it is all ok on my nas.... Maybe it help someone

Re: Mining Virus? xmr-stack [SOLVED]

Posted: Wed May 16, 2018 4:42 pm
by vitosx
You are not the only one infected. I wonder how xmr-stak was installed on your device.

Did you have ADM web interface (ports 8000/8001) accessible from Internet on your NAS? What version of ADM do you have running now?

Re: Mining Virus? xmr-stack [SOLVED]

Posted: Thu May 17, 2018 2:28 am
by gee21
vitosx wrote:You are not the only one infected. I wonder how xmr-stak was installed on your device.

Did you have ADM web interface (ports 8000/8001) accessible from Internet on your NAS? What version of ADM do you have running now?
yes 8000/8001
adm: 3.1.0.RFQ3

i have closed now the SSH Service for admin and root.
Because he upload /install this miner directly in the maindir of the nas. (i think the maindir is not available in Adm Webinterface? or?)

So maybe he acceess via Putty or similar.

Re: Mining Virus? xmr-stack [SOLVED]

Posted: Thu May 17, 2018 3:06 am
by vitosx
If ADM webinterface was compromised somehow, you can't say "maindir is not available". I don't have it publicly accessible over Internet, but that's me.

The 3.1.2 ADM update released today fixes nvradmin account vulnerability, which might be connected to this xmr-stak infection.