Automatic script update in MSSQL database with all colunm in all tables

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Hello,

We are using ms-sql 2008 database for our asp.net website but last few days our database is hacked again and again. when our database is hacked we got the below script in all tables with all columns.

HTML

</title><style>.axaa{position:absolute;clip:rect(407px,auto,auto,407px);}</style><div class="axaa">fast <a href="http://corypaydayloans.com">online payday loans</a> fast <a href="http://drewpaydayloans.com">online payday loans</a></div></title><style>.axaa{position:absolute;clip:rect(407px,auto,auto,407px);}</style><div class="axaa">fast <a href="http://corypaydayloans.com">online payday loans</a> fast <a href="http://drewpaydayloans.com">online payday loans</a></div>

After it happened we have restored our last correct database backup on live server then we have changed database password, username, database name and also changed FTP password but it happen again and again so please give us correct suggestion.

We don't know exactly it happened from hacker or our internal server issue.

Thanks in advance.

Thanks
Sudhir Khune

Posted 5-Mar-13 20:50pm

sudhir khune

Updated 3-Jun-13 0:20am

Maciej Los

v2

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Dec90 15-Mar-13 8:22am

what's the possibility of someone injecting code within your page and your not properly checking your insert/updates haven't got malicious code within it? I.E I fill a field on your webpage, you take it on face value that it will be fine but you don't check what's in it. I put the value of ";UPDATE Table1 SET Column1 = 'inject html here'" in your input field which if not parsed will update your whole table and update columns 1 with the value I just entered. just a thought.

Member 8311797 15-Jun-15 7:55am

hello

this is also happening to us.
do you have a lead or a solution?

thank you

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SudhirKankal · Answer 1 · 2013-06-02T23:59:00

Solution 1

You need to have server validations implemented in backend (application server) or database to check for
1) data type
2) business validation

Make use of escape-HTML to render any string data

http://www.htmlescape.net/htmlescape_tool.html[^]

Posted 2-Jun-13 23:59pm

SudhirKankal