You have a website based on Joomla and your hosting writes you about spam mailing, visitors get kicked to unknown websites full of advertising, pop-up with large banners, a heavy load appeared for the hosting, Yandex. Webmaster shows you presence of a malicious script in the code, "Dangerous Software" while opening the website.
There's only one reason - you have viruses!
Currently, according to our statistics, many users have very old versions 1.5. x, 2.5. x and 3. x. x.
We are not terrified by that and we work with any of this versions.
We make a range of actions:
1. Analysis of the website's files of the presence of viruses, shells, backdoors, spam mailing, doorways and others malicious scripts.
2. Diagnostics of the website through different scanners for determination of mobile and searching redirections.
3. Analysis of the database of the presence of hidden virus insertions.
1. Downloading protection - keep your system under control.
2. Closing security gaps - more probably viruses won't disturb you any more. Even though, there are always such things as human factor and viruses becoming from other websites.