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Receiving russian emails from contact us


foz1234
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Hi

I am receiving more and more emails from my own website in russian. when using translation its all different crap.

I have changed my email passwords to a real strong one (just to be 100% sure and safe) and changed google reCaptcha to invisible v2 from v2 checkbox but i am still receiving between 5-20 a day. Is there any other security i can add/use e.g. is there anything to ask a question like what colour is a apple type of thing that i've seen used on different sites?

Thanks for any support you provide in advance.

 

 

 

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These emails are almost certainly being sent via the Contact Us form and they have either found a way to circumvent the reCaptcha (assuming it is working OK) or they are being done manually.  Changing the email password to a strong one is not a bad idea but wont help in this case.

We block all connections into all our servers from Russia (and a few other countries such as China etc) which your hosting company wont do as it has to be done at a server level, but we also manage all of our fully managed hosting customers through Cloudflare and it is possible to block connections by country in the Cloudflare firewall at their edge network which means that they dont even get as far as our servers or the website.  This is one of many, many benefits of using Cloudflare when correctly configured 

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On 12/4/2020 at 10:57 AM, havenswift-hosting said:

These emails are almost certainly being sent via the Contact Us form and they have either found a way to circumvent the reCaptcha (assuming it is working OK) or they are being done manually.  Changing the email password to a strong one is not a bad idea but wont help in this case.

We block all connections into all our servers from Russia (and a few other countries such as China etc) which your hosting company wont do as it has to be done at a server level, but we also manage all of our fully managed hosting customers through Cloudflare and it is possible to block connections by country in the Cloudflare firewall at their edge network which means that they dont even get as far as our servers or the website.  This is one of many, many benefits of using Cloudflare when correctly configured 

How does this work if they bypass geo-locks while being connected to a VPN?

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49 minutes ago, foz1234 said:

How does this work if they bypass geo-locks while being connected to a VPN?

Well of course it can’t do that if they are connecting using a VPN based in say France.  However it will stop the vast majority of them and if you only sell to one or two or ten countries  you can block all connections except those.  Is it 100%, of course not but is it better than you have now ??

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I totally agree with you, but I thought that majority of these spammers would use a vpn? I maybe wrong just something I suspected they did. I thought a further additional security layer like a ramdom question related to the site may help.

I am assuming there is no such addon/plugin available?

Is there anyway to test if the invisible captcha is working?

Thanks again for your help and time replying, I do appreciate it.

(Added. Just logged into Google captcha and I can see red and green in charts so its working) 

Edited by foz1234
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33 minutes ago, foz1234 said:

I totally agree with you, but I thought that majority of these spammers would use a vpn? I maybe wrong just something I suspected they did.

Most of the ones bothering with small CubeCart sites for silly things like this will not use a VPN

35 minutes ago, foz1234 said:

(Added. Just logged into Google captcha and I can see red and green in charts so its working) 

There has been talk for a while now that Google V2 (both versions) has been broken which is why I guess Google brought out V3 which CubeCart doesnt yet support.  Of course if people are doing it manually rather than by a bot then no recaptcha would stop them

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I also have Russia blocked on our server firewall, but they still seem to get through occasionally.

I also suspect Recapture has been circumvented.

I see new accounts being created with a set pattern, I doubt these are manual entries.

 

In fact here is one created today           VapersawWA, VapersawWA

Edited by keat
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That is from the Contact Us form.

I have had no success at stopping this.

Can't use IP addresses from Russia because it is CubeCart's mailer that is sending the email.

The Contact Us is a form submission, however, so there might be a way to interdict the submission based on some criteria, but there is no pattern.

 

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Hi Brian,

Yes that's correct and another today and 3 or 4 yesterday 

JamesLox <[email protected]> wrote to Sales:

---------------

Во «Автомаляр+» вам сможете отыскать наиболее обширный перечень продуктов с основных европейских также наилучших российских изготовителей, что заключается с тыс. названий. Максимальный подбор автомобиля окраски во Украине показан непосредственно во нашем торговом центре.

 

купить краску для авто ваз

---------------

 

This email is sent from the store's master email address but it is possible to reply directly to the sender using the reply button on your email software.

--------------------------

Only common denominator is they all have Russian language in them.

I can only read English, so if there is anyway to drop the email from sending if it contain Russian characters?

Edited by foz1234
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I am assuming there is no way to drop email if it contains Russian characters by the lack of replies? Its very annoying as I tend to get 2-10 per day even over the Christmas period, the script seems to have stopped the bot from creating false accounts but obviously not stopped the contact us from spamming. Not sure why this is happening to my site, the messages are not related. 

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Please try adding this line just after the last line of the previous test.

The previous test kills PHP if any of the conditions are met for unwanted registrations.

This test will look for any character used in the Russian language. If there is such a character in the Contact Us form "Enquiry" text entry, PHP exits.

Edit: Oops! This won't work:
if ('#.*[\x{0400}-\x{04ff}\x{0500}-\x{052f}\x{2de0}-\x{2dff}\x{a640}-\x{a69f}\x{1d2b}-\x{1d78}].*#', $_POST['contact']['enquiry']) exit;

Fixed:
if (preg_match('#.*[\x{0400}-\x{04ff}\x{0500}-\x{052f}\x{2de0}-\x{2dff}\x{a640}-\x{a69f}\x{1d2b}-\x{1d78}].*#', $_POST['contact']['enquiry'])) exit;

 

Edited by bsmither
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Hi Brian

Thanks again, so to confirm, to test this i place the above line in "ini-custom.inc.php" as below?

<?php

if(

  (

    (isset($_GET['seo_path']) && $_GET['seo_path'] == "register")

    ||

    (isset($_GET['_a']) && $_GET['_a'] == "register")

  )

  &&

  !empty($_POST['first_name'])

  &&

  !empty($_POST['last_name'])

  && 

  (

    (!empty($_POST['phone']) && $_POST['phone']=="123456")

    ||

   # //preg_match('/[A-Z]\z/',trim($_POST['first_name']))===preg_match('/[A-Z]\z/',trim($_POST['last_name']))

    (ctype_upper(substr(trim($_POST['first_name']),-2)) && ctype_upper(substr(trim($_POST['last_name']),-2)))

    ||

    !empty($_GET['agreed'])

  )

) exit; // Kills PHP leaving browser with white screen
if ('#.*[\x{0400}-\x{04ff}\x{0500}-\x{052f}\x{2de0}-\x{2dff}\x{a640}-\x{a69f}\x{1d2b}-\x{1d78}].*#', $_POST['contact']['enquiry']) exit;

  

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Hi Brian

LOL re: egg-nog, I may have 1 or 2 myself tonight - Happy New year mate !!

i changed the code but it is not working Brian, unless i am not putting it in the correct file/folder?

once added i cleared CC cache (not sure if i needed to or not), i then tried sending a contact us (email) through the website, I sent 1 with subject & enquiry in english and the second in russian - скачать фото кубани in both fields but sadly both came through.

ini-custom.inc.php (in same place index.php etc)

code:

 

<?php

if(

  (

    (isset($_GET['seo_path']) && $_GET['seo_path'] == "register")

    ||

    (isset($_GET['_a']) && $_GET['_a'] == "register")

  )

  &&

  !empty($_POST['first_name'])

  &&

  !empty($_POST['last_name'])

  && 

  (

    (!empty($_POST['phone']) && $_POST['phone']=="123456")

    ||

   # //preg_match('/[A-Z]\z/',trim($_POST['first_name']))===preg_match('/[A-Z]\z/',trim($_POST['last_name']))

    (ctype_upper(substr(trim($_POST['first_name']),-2)) && ctype_upper(substr(trim($_POST['last_name']),-2)))

    ||

    !empty($_GET['agreed'])

  )

) exit; // Kills PHP leaving browser with white screen
if (preg_match('#.*[\x{0400}-\x{04ff}\x{0500}-\x{052f}\x{2de0}-\x{2dff}\x{a640}-\x{a69f}\x{1d2b}-\x{1d78}].*#', $_POST['contact']['enquiry'])) exit;

 

Edited by foz1234
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