Been hacked through eshop

Hi

I need some help. A few time ago I started getting tons of email delivery fail. To fix it temporarly I've deactivated the email from joomla configuration.
Now after some search, I've found they'r using the task from eshop:

index.php?option=com_eshop&task=product.processEmailAFriend&lang=en

to send the emails.

How can I fix this? Do you have something I can do beside full restore? Can I disable this task completely?

thank you for your help!

I really need the webstore sending emails (new registration...new orders...)

Hello Marco,

Sound like this is an outstanding issue. Please submit a new ticket to EShop category to send me the your site information so I can help you to check.

Sincerely, Giang