i will reply again in this topic , it could be a long message , but i hope that it can be useful for the many nubs like me whom are using Presta.
PresatVault sounds very good and is not expensive , but what will happend if they took the control of ur back panel ans simple disable the module?
for this i will tell all the story about what hapened to me . maybe it can be useful also for experienced guys. if is too much to read just ignore it
* first i got the info via email that older Presta can be hacked with an injection .. bla bla , u could find on ur shop root file blm.php
i did not pay much atention coz i was in holiday and thought that the super guys will solve it fast , plus i am a very small shop , nobody wants nothing from me . i checked , the blm.php was there , Smarty on etc . but nothing strange on the site . imunify360 shows some files cleaned , all ok
then , surprise . i try to make an order on my site and when i had to chose payment method , a window that looks almost exactly like my theme apears and ask me for my credit card details. it was almost perfect , somebody worked on it. if i compile all data on that window (even write wrong data there) the window vanish and turns me back to the standard payment page of my website . and it never apeared again. but the i had a doubt and create another customer acount . same window till i copleted all fields with credit card details.
i sayd upss , and like i was in holiday and not much activity i asked my host to rollback a backup and reset my cpanel/ftp password. swithc off SMARTY ,all was okay then/
what I DID NOT do was to change also password of the shop , and to check if there is also some more new user in back panel.
SO , after a week or so , a client called me that he does not have Paypal account and cannot order but he needs that tool very fast. UPSSS again
Smarty ON , try to order something on my site ....Paypal screen. beleave me that i was frustraded , i dont have enough knowledge to repair it , google , forums , guy that i know is a developer in holiday ,bla bla , friendly guys ,cheapest one was 600 eur . the sky was over me.
now what i did is the most important thing in this love story
i have seen in the root of site a file b2b.php - i dont have b2b shop sio i deleted- nothing happens it has 0 bytes , but i figure out they replace BLP file with B2B
then i opened in CPanel Imunify360 and noted all files atacked and cured by it ( see the pic bellow)
repelaced manualy all those files from a backup before atacks, i will my have some problems with database later ( like i had when deleted test orders from search bar of the browser , dont do that, anyway is another topic). made a clean of orfan things in my myPhPadmin
And haleluja , all back to normal.
then change again Cpanel password , this time ALSO SHOP PASSWORD , emails passwords of that domain , a fully scan of all PC using to work
then everyday several times i check if new files apeared on the root of my site and Smarty is OFF. i will see the results anyway on Monday coz both atacks took place on weekend when hackers are bored i suppose
and for sure i will buy Prestavault module acording sugestion of @El Patron , it should be usefull
sorry once again for the long bla bla , i hope it can help somebody in the future