My site being listed as malicious by Google, please help

[abirhasan]

Hi all,

I started to have trouble accessing my sites, and went into filezilla and found a lot of files which i dont recognize.

I deleted them, reinstalled my wordpress and they are accessible again.

Right now, the problem is back, and I found the following msg.

Quote

What happened when Google visited this site?

    Of the 2 pages we tested on the site over the past 90 days, 2 page(s) resulted in malicious software being downloaded and installed without user consent. The last time Google visited this site was on 2012-03-22, and the last time suspicious content was found on this site was on 2012-03-22.

    Malicious software includes 3 exploit(s).

    Malicious software is hosted on 1 domain(s), including tds54.byinter.net/.

    This site was hosted on 1 network(s) including AS15244 (ADDD2NET).

any idea why my site / server seems hacked??

__________

abirhasan

[Sogo7]

1. Make sure you are using the latest version of Wordpress, older versions have several weakneses allowing them to be easily hacked.

1b. Same applies to plugins, check the Wordpress forums to see if others have had similiar problems

1c. If you have added any server side PHP scripting yourself that passes information between pages, did you remember to sanitise the inputs?

2. Ensure your own PC or laptop is virus free and  scan using a boot disc, never trust the installed AV software on a windows PC.

3. Get rid of any packages, scripts, cracked software or keygens downloaded from torrents or othwise naughty web sites as 9 out of ten times they come bundled with a virus or three.

4. My personal favourite  remember to logout properly if using a shared PC at school or library because people will play