Admin panel hacked

FAQ: My Site Was Hacked

It could have happened in a lot of different ways, but most likely are, more or less in order, that you had a bad password, a poorly designed theme or plugin, or there is a security flaw in your server configuration. It is really hard to say exactly what happened without access to the server and a lot of forensics work.

… and stop trying to patch up your hacked site. Reinstall or restore your backups.

Is this not psysoc’s first hacking? I didn’t realize.