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7/13/19

Security Advisory for eCh0raix Ransomware

Security Advisory for eCh0raix Ransomware
Release date: July 11, 2019

Security ID: NAS-201907-11

Severity: High

CVE identifier: N/A

Affected products: QNAP NAS devices

Summary
The eCh0raix ransomware is reportedly being used to target QNAP NAS devices. Devices using weak passwords and outdated QTS firmware may get infected.
We are urgently working on a solution to remove malware from infected devices and will release it at the soonest possible time.
If you have any questions regarding this issue, please contact us through the QNAP Helpdesk.

Recommendation
To avoid infection, you must:
Update QTS to the latest version.

Install and update Malware Remover to the latest version.

Use a stronger admin password.

Enable Network Access Protection to protect accounts from brute force attacks.

Disable SSH and Telnet services if you are not using them.

Avoid using default port numbers 443 and 8080.

Installing the QTS Update
Log on to QTS as administrator.

Go to Control Panel > System > Firmware Update.

Under Live Update, click Check for Update.
QTS downloads and installs the latest available update.

Installing/Updating and running the latest version of Malware Remover
Log on to QTS as administrator.

Open the App Center, and then click the Search icon.
A search box appears.

Type “Malware Remover”, and then press ENTER.
The Malware Remover application appears in the search results list.

Click Install or Update.
A confirmation message appears.

Click OK.
The application is installed or updated to the latest version.

Open Malware Remover.

Click Start Scan.
Malware Remover scans the NAS for malware.

Changing the Device Password
Log on to QTS as administrator.

Click the profile picture on the QTS Task Bar.
The Options window opens.

Click Change Password.

Specify the old password.

Specify the new password.
QNAP recommends the following criteria to improve password strength:
Should be at least 8 characters in length

Should include both uppercase and lowercase characters

Should include at least one number and one special character

Must not be the same as the username or the username reversed

Must not include characters that are consecutively repeated three or more times

Verify the new password.

Click Apply.

Enabling Network Access Protection
Log on to QTS as administrator.

Go to Control Panel > System Security > Network Access Protection.

Configure SSH protection.

Select SSH.

Specify a time period and the number of failed login attempts.

Configure HTTP(S) protection.

Select HTTP(S).

Specify a time period and the number of failed login attempts.

Click Apply.

Disabling SSH and Telnet Connections
Log on to QTS as administrator.

Go to Control Panel > Network & File Services >Telnet/SSH.

Deselect Allow Telnet connection.

Deselect Allow SSH connection.

Click Apply.

Changing the System Port Number
Log on to QTS as administrator.

Go to Control Panel > System > General Settings > System Administration.

Specify a new system port number.
Warning: Do not use 443 or 8080.

Click Apply.

Acknowledgements: Anomali Labs and Intezer

Revision History: V1.0 (July 11, 2019) - Published

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