HELP! has my server been taken over?

Question

Im new to Mac, yet i do have some general computer knowledge.
So this is my Problem:
I was Surfing on the web, until my mac just shut down, i couldn't restart it at all. 15min later it turned on by itself. So then i got 2 messages popping up on my screen. The "something" as "someone" is trying to access your server click Deny for limited acces or allow.
And then the same message appeared but with a different name.
So obviously i clicked Deny, but the access is still granted, just limited.
So now my mac wont let me install or update anything, it wont let me logg on to facebook, twitter or any other forums even my email.. (i dont know how i managed to log in to the apple forum i created a new account)
And it sometimes says, "the download has been cancled" because i dont have the right to download anything, Odd??
I also entered this code netstat -n into Terminal and it showed me recent activity, while i wasnt doing anything...?
Please help, thanks!
Ps. i don have warranty on my laptop.
Message was edited by: Littlebearcutie

Answer 1

There are a lot of current malware/adware, sql, and other things to be aware of currently.
Crashing or freezing a system no matter how can often result in damage to the directory, lost files, and require extra maintenance.
Having a bootable backup, not just TM, is a good way to protect yourself, and to protect you from any update-gone-bad.
From ZDNet Security blog this week:
http://www.zdnet.com/blog/security
*Mass SQL injection* attack leads to scareware
By Dancho Danchev | March 30, 2011, 7:02am PDT
+Security researchers from WebSense have detected a mass SQL injection attack, which the cybercriminals monetize through scareware, also known as fake security software.+
*New GPCode ransomware* encrypts files, demands $125 for decryption
By Dancho Danchev | March 28, 2011, 7:55am PDT
+Researchers from Kaspersky Lab have intercepted a new variant of the GPCode ransomware.+
Spamvertised *Post Office Express Mail* (USPS) emails lead to malware
By Dancho Danchev | March 25, 2011, 9:23am PDT
+A currently spamvertised malware campaign is brand-jacking the USPS in an attempt to trick users into downloading and executing a malicious file.+
Zombie *PC Prevention Bill* to make security software mandatory
By Dancho Danchev | March 24, 2011, 8:53am PDT
+South Korea’s recently proposed Zombie PC Prevention Bill, aims to fight botnets with common sense - by making security software mandatory on users’ PCs.+
Microsoft warns: *Fraudulent digital certificates* issued for high-value websites
By Ryan Naraine | March 23, 2011, 10:28am PDT
+According to the Microsoft advisory, the fraudulent Web certificates affect the Microsoft Live service, Google’s mail system, Yahoo and Skype log-ins.+---
*Lizamoon attacks* - a rapidly spreading bit of SQL injection
http://vrt-blog.snort.org/
http://www.techworld.com/security/
*"Trusted" Sites Fail To Clean Malvertising Scourge*
+Reports indicate that users of Facebook and the European music service, Spotify, have been exposed recently to malvertising attacks.+
http://www.informationweek.com/security/