WordPress.org

1. BenRoss
   Member
   Posted 7 months ago #

   Hello,
   I recently figured out that my blog has been hacked. Here's an example of some of the code which was inserted by a third party:

   <!-- ~ --><u style="display:none">bad credit visa card citibank credit card 800 number

   There is a huge block of hundreds of these kind of links. From what I've read online, everybody says the way to alleviate this problem is to upgrade to the most recent version of Wordpress. Coincidentally, I just upgraded to 2.7.1 last week, but I am still having this problem. Any idea on how to resolve it? Thanks.
   Ben

2. modiryoldash
   Member
   Posted 6 months ago #

   Ben,
   It's really bad. There doesn't seem to be any conclusive fix or even a clue as how to combat this.

   I've tried upgrading to 2.7.1, changing the pass words and maintaining an eye on the wp_users table on the data base and just any other trick I can think of to no avail.
   Tried to install bad-behavior plugin. That keeps giving me error message when trying to activate it.
   Meanwhile, wordoress' reputation is eroding fast with this spam hijack and them acting like theres nothing wrong!...
   It's a pitty that the end of word press is going to be through spam hackers...

3. jdembowski
   Member
   Posted 6 months ago #

   It's really bad. There doesn't seem to be any conclusive fix or even a clue as how to combat this.

   Not true. If it were really a WordPress problem, there would be 1) LOTS more compromised and exploited blogs and 2) soon a post on the forums stating "Hey, Really Bad Stuff found, upgrade to version 2.7.x NOW!!"

   That's happened before and the ones who did not heed that warning paid for it with a hacked blog.

   Meanwhile, wordoress' reputation is eroding fast with this spam hijack and them acting like theres nothing wrong!...
   It's a pitty that the end of word press is going to be through spam hackers...

   That's a bit over dramatic and won't solve anything for you.

   What have you done to resolve this? Have you looked at http://wordpress.org/search/hacked?forums=1 and actually tried any of the advice?

   Upgrading a hacked blog to the current release 2.7.1 without doing the work to fix it only get's you a hacked 2.7.1 blog. You need to upgrade AND fix your blog files and database.

   No way around that, and sounds like you haven't fixed your problem.

4. modiryoldash
   Member
   Posted 6 months ago #

   Dear jdembowski,

   Thank you for your prompt reply. Yes, I admit I was a bit over dramatic and if that bothered you, I duly apologize and say that it was out of sheer frustration.

   Dear Sir, I can now almost say that I know my way around the php a little bit, as I am able to modify the right files to get the look and the sort of the structure that I want.

   I did read a lot of the advice on the said hacking problem in the forums that you mentioned, before I posted the above comment, and what I did not do was setting up a new database with my host godaddy and then again set up fresh 2.7.1

   I know how to set up the database and look just about any where in there, though most of the time I don't know what I am looking at!
   What I don't know is enough SQL to enable me to migrate just the postings and comments from the old data base into the new one without any other element of the database, lest it contains the malicious code.

   Any tip or advice you can share with me on that?

   Highest regards, and thanks again for hearing me

   Mo

5. jdembowski
   Member
   Posted 6 months ago #

   No problem, let's see if we can get your blog cleaned up.

   What I don't know is enough SQL to enable me to migrate just the postings and comments from the old data base into the new one without any other element of the database, lest it contains the malicious code.

   Try this: Backup your files and database and get ready to restore them as a just in case.

   Export your blog to WXR and load that file into your favorite text editor and search for that malicious code.

   Once you are confident that the export is now clean, create new tables in your WordPress database. Same database but different table prefix in wp-config.php.

   Re-run the install.php and with that empty blog import that WXR into those empty tables and see if you get your blog back clean.

   If that does not work, change back the wp-config.php and at least you'll be back to square one and can try something else.

6. modiryoldash
   Member
   Posted 6 months ago #

   Thank you Sir,

   You are a true Gem, jdem...

   That is the tool that in our case will bring salvation to our blog, after all...

   I used the export tool, looked at the whole thing, and I wasn't sure that if I saw the malicious code, I'd know it.

   So I imported it into a new install that I did on a fresh data base, and changed all passwords, and boom. There the spams were again in a span of no longer than a couple of hours!

   Next thing I did was I went and cleaned out the root of the website from all images that were sitting around and transferred the rest into another directory. I did not create another data base and fresh install. That will be the next step if I have to take one.

   Since then, the blog has remained up and stable, but no telling if it would last. If it doesn't then I'm going to have to go again to a fresh install with a new data base. But I need a bit more guidance.

   When I was using the import tool, I didn't know what the purpose of that little box that was there to be checked, exactly for. Would not checking that box prevent a probable avenue of entry for the malicious code into the blog from the XML file?

   Also, when I'm looking at the XML file with my text editor, what are some of the things I need to watch out for? Do I just delete them and just save the document? Would you give me some good stuff on that too?

   If you should be so kind to want to take a peek at it, I put the most recent one here for your review:

   http://negahi.com/XML/wordpress.2009-05-15.xml

   May the karmic goodness that's within you, always lead you to happier, healthier, and more prosperous life.

   Mo

7. jdembowski
   Member
   Posted 6 months ago #

   There the spams were again in a span of no longer than a couple of hours!

   Mo,

   I'll look at it in a few hours when I get home, but it sounds like you are afflicted with comment spam.

   Have you tried installing Akismet and Bad Behavior together? That's a good combination for fighting comment spam.

8. modiryoldash
   Member
   Posted 6 months ago #

   I have had Aksimet installed for a while now.

   However, having tried to install Bad Behavior from several different locations with different PC's, I have consistently gotten the following Error Message:

   Error 403
   We're sorry, but we could not fulfill your request for /yoldash2/wp-admin/plugins.php?action=activate&plugin=bad-behavior%2Fbad-behavior-wordpress.php&_wpnonce=7b6f53299c on this server.
   An invalid request was received from your browser. This may be caused by a malfunctioning proxy server or browser privacy software.
   Your technical support key is: 6026-e0ca-1756-6707
   You can use this key to fix this problem yourself.
   If you are unable to fix the problem yourself, please contact modir_yoldash at yahoo.com and be sure to provide the technical support key shown above.

9. jdembowski
   Member
   Posted 6 months ago #

   Mo,

   I've had that happen to me with BB too; turned out to be my proxy. Since you've tried from different locations it might be a BB issue.

   That's an active blog you have there; too bad I can't read farsi :)

   Also, when I'm looking at the XML file with my text editor, what are some of the things I need to watch out for? Do I just delete them and just save the document? Would you give me some good stuff on that too?

   Mostly I just look for thing in the posts that don't belong there. When your blog is hacked/compromised/exploited, it's not hard add hidden spam links to your posts.

   Although on a compromised server, it's much easier to just add the links to your HTML output or add scripts onto your installation in the file system. That seems to be more popular avenue as it means less work for the attacker.

   I've looked at the XML export and as far as I can determine, the export is clean of any exploits. Lots of links in the comments but that may be normal (hard for me to judge without being able to read the comments).

   It's either via spammy comments or your file system. What kind of server is it? Is it a shared server with others on the box? Have you checked the file and directory permissions?

10. modiryoldash
    Member
    Posted 6 months ago #

    too bad I can't read farsi :)

    Well, Jdem Jaan, [
    

    "Jaan or جان"

    in Farsi means
    

    "Dear"

    . So, there you go with a good Farsi word ;)]
    Thanks to your guidance I have set up two more installations with all the updated content ready to go active by a simple re-direct in case the gets hacked again. So the blog may get still hacked, but it's not going to go down for too long :)

    it's much easier to just add the links to your HTML output or add scripts onto your installation in the file system. That seems to be more popular avenue as it means less work for the attacker.

    That, I can see it to be the case with our blog's spammy hacks; where as the links first used to get attache at the bottom of the outpu, the footer, and then to the head of the output as header.

    What kind of server is it? Is it a shared server with others on the box? Have you checked the file and directory permissions?

    We pay for the domain registeration and hosting of ours, both through godaddy.

    I know a little bit about file permissions and I know where to change them using filezilla as my recommended by WP ftp server. Which permission should I particularly watch out for? on which folders?

    Again, thanks a gazillion...

11. jdembowski
    Member
    Posted 6 months ago #

    Mo,

    I learn something new everyday. :)

    I'm not familiar with GoDaddy hosting, so someone else may be able to provide more spot on advice. But here goes:

    Backup all your files as a just in case and once again, change your passwords. Make sure that there are no WordPress users on your installation that you don't know about.

    Take a look at this link

    http://codex.wordpress.org/Hardening_WordPress#File_permissions

    If you set your directory permissions to 755 and files to 644 and then make the wp-content directory writeable, you should be fully working. If any files get modified or added they will be restricted to just the wp-content directory. You may also want to make plugins and themes 755 also; this way wp-content will be limited to uploads and cache.

    Make sure your .htaccess is setup and THEN make it 444. Unless you are changing your permalinks or adding plugins that modify that file (WP-SuperCache for example) that file should also be readable only others.

    By doing all this, you will lose the ability to perform automatic upgrades and will have to do it the old fashioned way of downloading the files and manually uploading. Since your blog is getting spam inserted, that's probably not a bad thing.

12. modiryoldash
    Member
    Posted 6 months ago #

    Great stuff Jdem,so far so good.

    I'm up with all the file and directory permissions as you mentioned except I'm not sure about this:

    and then make the wp-content directory writeable,

    What numeric code would that be for the wp-content directory? are we also talking about its subdirectories too?

    Baa Sepaas

    "Baa Sepaas" means, "with thanks and gratitude" in Farsi

13. jdembowski
    Member
    Posted 6 months ago #

    and then make the wp-content directory writeable,

    I'm not a GoDaddy user but if you can't run suPHP or change the ownership of those files and directory then you'll need to set wp-content to 777 .

    (Drinks more coffee) This will require some explanation so I don't give out bad advice... anyone who sees a fault or gap (Wake up Otto and Whooami! :) ) please chime in.

    I run my own virtual private server, so I make the files owned by myself and run the web server as a different userid (in my case www-data, it's an Ubuntu distribution). I'm the only one on my VPS with no other users defined or active.

    My webserver can't write to the files because I set my directories to 755 which means owner (my userid) can read/write, others can only read so that rwxr-xr-x. The execute bit is required so that non-owners can enter that directory.

    Files are set similarly as 644, which is read/write for the owner and read only for everyone else (rw-r--r--).

    This is reasonably secure but has a problem: when I use the built in editor to upload images for my posts, or use the built in plugin upload management feature then I wont be able to upload files within WordPress. The webserver is running as www-data and can't write to the wp-content directory, it can only read the contents.

    So to fix this, I make the directories that WordPress uses to be owned by my webserver. Since I administer that box, I can do that. If I did not admin that box, I would have to set the wp-content and it's sub folders to 777.

    Using 777 is a compromise and it's not really safe. Any other users on your server could drop files/directories there; when you are the only one on a server or VPS it's less of a risk.

    Try limiting 777 just to

    wp-content/uploads
    wp-content/cache

    And see if you retain the ability to upload images and use them in posts. If that does not work then make wp-content and all of it's folders 777.

    For enabling the plugin upgrade feature you will also need to make wp-admin and wp-include writable too (I have no idea why). I do not recommend you do this because your blog has a history of problems. So when a new version of your plugins are available, upload them the old fashioned way.

14. modiryoldash
    Member
    Posted 6 months ago #

    After all, "write-able" is how I must have left the wp-content folder itself, because I tried couple other restrictive settings and when I checked the blog after I did them, it looked all screwy! and it didn't look right till I gave it the right permission...

    Any how I am not sure if it is time to lay back and be happy yet, but we're entering day three of smooth sailing with WP again.

    Thanks for every thing Jdem, and a universe of good karma may be yours...

    Mo

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