Ransomware After Install

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cheex
Posts: 2
Joined: Wed Jul 04, 2018 12:16 pm

Ransomware After Install

Post by cheex » Wed Jul 04, 2018 1:24 pm

After deploying TSPlus in the company we had a ransomware attack via the HTML5 portal. While I am still trying to figure out how it could be possible for a virus to enter the server and affect other servers via TSPlus, I wanted to pass this along.

Can someone please explain how this could be possible, in our environment users are not given anything but the point of sale application which doesn't have access to a web browser, nor does it allow for directory browsing. It would appear the users laptop was infected and spread to the server and other servers also. Below is info on the virus:

Dharma ransomware family
.Arrow derivative

Name: .id-.[].arrow

cheex
Posts: 2
Joined: Wed Jul 04, 2018 12:16 pm

Re: Ransomware After Install

Post by cheex » Thu Jul 05, 2018 12:56 pm

Because i dont have access to private message yet, i would like to thank those who messaged me. i would like to reply however unable to given to stringent board rules.

IvanGB
Posts: 93
Joined: Sat Feb 06, 2016 2:26 pm

Re: Ransomware After Install

Post by IvanGB » Thu Jul 05, 2018 4:46 pm

Hi cheex.

Do you use TSplus Web Credentials for the authentication process?
If not, your user's laptop could have a virus which stole the TSplus Windows Server username and password as he typed them in at logon.
After that, someone could have used it to Remote Desktop the server with valid credentials.

Best.

Ivan

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admin
Site Admin
Posts: 1649
Joined: Wed Sep 05, 2012 6:38 am

Re: Ransomware After Install

Post by admin » Sat Jul 21, 2018 6:31 pm

Hello,

Virus can attack from multiple places. Most of the time, opening an email attachment on the server or accessing a malicious website is at cause. I have made a documentation on how to provide more security to your server : https://www.terminalserviceplus.com/doc ... lus-server

RDP can also be at risk if your users password are weak, you might be interested by our latest security tool : RDS Knight
Developed especially for RDP defense, it can also secure your user account to prevent them to have sufficient right to launch a ransomware.

It adds an extra security with a protection from brute force attack and allow you to provide a more restricted environment to your users.

Find out more here : https://www.terminalserviceplus.com/rds-knight.php

You could also try out Server Genius, our most recent add on for TSplus.

Server Genius, Which provides a various set of log of all activities on the server, creating comprehensive charts and can send alerts if CPU or memory is too high.

Find out more here : https://www.terminalserviceplus.com/server-genius.php
Olivier
TSplus support team administrator
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