TeamSpeak Official Forum Hacked! Redirecting Users Into Malicious DotCache Exploit Kit

TeamSpeak Official Forum Hacked! Infecting Users By Malicious DotCache Exploit Kit

A serious security breach has compromised official forum of TeamSpeak, according to sources hackers have gained access inside the server and injected malicious script into the landing page of TeamSpeak official forum. Expert malware analyzer have figured out that the attack was thoroughly planned in order to infect millions of users while redirecting them to a DotCache exploit kit landing page as illustrated below 

TeamSpeak is a very famous Brazilian company who offers (VoIP) software that allows computer users to speak on a chat channel with fellow computer users, much like a telephone conference call. Users use the TeamSpeak client software to connect to a TeamSpeak server of their choice, from there they can join chat channels and enjoy the excellent VoIP service. Mostly it is used by millions of gamers across the globe. 

Basically we can consider TeamSpeak is a high value target, so did the hacker. Researchers said that the exploit kit landing page is hosted on atvisti.ro, a forum for ATV enthusiasts that's also been compromised. In a statement well known malware analyst & security researcher Jerome Segura said- if the Java exploit succeeds the final payload is loaded. In this particular example, the payload was the Zero Access Trojan which an Anti-Malware from Malwarebytes detects as Rootkit.0Access. The matter of a bit relief is that the malware has not yet been spotted in the wild. According to a statistic by Virus Total, only 7 of 46 leading antivirus can detect this type of malware. Exactly like TeamSpeak, a few days earlier Kahu Security researchers uncovered a similar compromise on the forum for the Nissan Pathfinder Off Road Association (NPORA) in both cases, JJEncode was used to obfuscate the malicious script. To avoid further infection, TeamSpeak forum has already been informed, an as expected they have over come this issue. For detail analysis of the above said malware you can visit official blog post of Malwarebytes. 

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NBC.com Compromised, Hackers Exploited The Website to Spread Malware

NBC.com Compromised, Hackers Exploited The Website to Spread Malware

The month of February is still going from bad to worse for the cyber domain, in this very month cyber criminals swallowed the security system of many giant companies like Facebook, Twitter, Apple, New York Times and many more. But the game is not over yet, as we have just passed a few weeks, when the attack on NY Times took place, which stolen the employ database; yet again the cyber criminals have targeted another media giant National Broadcasting Company widely known as NBC. During the attack, hackers have successfully gain access inside the server of NBC and planted malware, in order to harm innocent readers. Famous security expert and blogger Brian Krebs said that the hackers inserted code into the NBC.com homepage. This caused visiting browsers to load pages from third-party sites that were compromised. While explaining the nature of the attacker, Krebs said; "The compromised sites tried to foist the Citadel Trojan, a variant of the Zeus Trojan." The Zeus is a "sophisticated data theft tool that steals passwords and allows attackers to control machines remotely" he added. Not only the NBC’s home page, also several others were affected, including the pages of late night talk show hosts Jay Leno and Jimmy Fallon. Well known security firm Sophos explained how roughly attack played out, and how NBC got sucked into the equation:

• NBC's hacked pages were altered to add some malicious JavaScript that ran in your browser.
• The JavaScript injected an additional HTML component known as an IFRAME (inline frame) into the web page.
• The IFRAME sucked in further malicious content from websites infected with an exploit kit known as RedKit.
• The exploit kit delivered one of two exploit files to try to take control over your browser via a Java vulnerability or a PDF bug.
• If the exploit worked on your computer, financially-related crimeware from the Citadel or ZeroAccess families was installed.

This, of course, is an example of a dreaded drive-by download, where the crooks use a cascade of tricks to download, install and execute software without going through any of the warnings or confirmation dialog you might expect. This, in turn, means that even if you are a careful and well-informed user, you may end up in trouble, since there are no obvious signs that you are doing anything risky, or even unexpected.

As soon as this story get spotted the American commercial broadcasting television network, NBC News reported and confirmed that its site had been attacked. The broadcaster released the following statement regarding the website: "We've identified the problem and are working to resolve it. No user information has been compromised."

The emergency response team immediately take the situation under control and restored the website, and confirmed that the site is back again and completely safe for its visitors. But so far there is no evidence of attackers who were involved in this attack. For the safety of VOGH readers we would like to recommend you to update your operating systems and browser plugins. Also note that the attack on NBC was similar to many that have occurred in recent years in that the malicious sites tried to exploit vulnerabilities in Java. So it will better to disable Java, unless it is that much necessary. So stay tuned with VOGH and be safe in the cyber domain. 

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Apple Hacked By The Same Group Who Attacked Facebook

Apple Hacked, Macintosh Computers Infected  By The Same Group Who Attacked Facebook 

The month of February is not going good for cyber space, specially for giant organization. Last week the social networking giant Facebook fallen victim of a devastating cyber attack which did effected a number of  systems. Facebook admitted that it faced a "sophisticated attack" on computers where it has been found the attackers used a zero-day Java exploit to initiate the attack, but that no user data was compromised. The same thing happened to micro blogging site Twitter and New York Times. And now it was the turn for Apple. The California based multinational company acknowledged that recently their systems has been attacked by hackers who infected Macintosh computers of some employees. Like Facebook here also no data has been effected, "there was no evidence that any data left Apple." -said Apple. 

According to an exclusive report of Reuters -some unknown hackers infected the computers of some Apple workers when they visited a website for software developers that had been infected with malicious software. The malware had been designed to attack Mac computers. The same software, which infected Macs by exploiting a flaw in a version of Oracle Corp's Java software used as a plug-in on Web browsers, was used to launch attacks against Facebook, which the social network disclosed on Friday. The malware was also employed in attacks against Mac computers used by "other companies," Apple said, without elaborating on the scale of the assault. Experts are presuming that all these cyber attacks of February, that is Twitter, New York Times, Facebook & Lastly Apple Inc was originated from China, and executed by the same hacker group. On the other side few experts are also saying that the group responsible for the hack, has been identified as "Unit 61398" of the People's Liberation Army. But so far there is no proof. 

Apple also revealed that it plans to release a software tool later Tuesday that will protect customers against the same type of software that was used against its employees. 

Apple also provided a statement as follows:-

"Apple has identified malware which infected a limited number of Mac systems through a vulnerability in the Java plug-in for browsers. The malware was employed in an attack against Apple and other companies, and was spread through a website for software developers. We identified a small number of systems within Apple that were infected and isolated them from our network. There is no evidence that any data left Apple. We are working closely with law enforcement to find the source of the malware.

Since OS X Lion, Macs have shipped without Java installed, and as an added security measure OS X automatically disables Java if it has been unused for 35 days. To protect Mac users that have installed Java, today we are releasing an updated Java malware removal tool that will check Mac systems and remove this malware if found..."

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Yahoo Mail Hit By XSS Exploit Putting 400 Million Users At Risk

Yahoo Mail Hit By XSS Exploit Putting 400 Million Users At Risk

Yet again mistrust growing in between the large number of Yahoo users, as it has been continuously failed to protect its customers from cyber attack. Late in last year we have seen that the two major services of Yahoo get compromised, which affects millions of its registered users across the globe. First it was Yahoo Voice, which get hacked while putting 450K users at high risk. Then it was the time for Yahoo Mail, where few Egyptian hacker figured out serious XSS vulnerabilities in Yahoo Mailing service  that lets attackers steal cookies from Yahoo Webmail users. Later cyber criminals made product while exploring that loop holes, that so called product or widely known as exploit was made available at high price in underground market and forums. As expected Yahoo immediately patched these loopholes, but now it seems they did not learn lesson from the decent past. 

You all may be wondering! what happened? Again the security of Yahoo fallen victim in front of hackers.  Shahin Ramezany, a hacker and independent security researcher have figure out a DOM-Based XSS vulnerability in Yahoo Mail that is exploitable in all major browsers. Ramezany tweeted about this issue whihc links to an YouTube video, where he demonstrated the hack. Shahin Ramezany also claimed that the exploit have put more than 400 Million yahoo users at risk. 

As soon as this story get spotted, Yahoo immediately responds the matter, in their official release a Yahoo spokesman said "We’ve been looking into it and the US have now confirmed that they are investigating too. They will be in touch if there is a comment – otherwise I recommend that if users are concerned then they should change their passwords immediately." 

Later Yahoo said that thy have plugged the security hole. In their statement the spokesperson added, “At Yahoo! we take security very seriously and invest heavily in measures to protect our users and their data. We were recently informed of an online video that demonstrated a vulnerability. We confirm that the vulnerability has been fixed. In addition, we are investigating recent reports of increased abusive traffic and will work diligently to fix any vulnerabilities that are found. Concerned users are encouraged to change their passwords to a safe password that combines letters, numbers, and symbols.”

But this issue did not get completely resolved, as immediately after the fix release of Yahoo, Shahin Ramezany said that the fix is not good enough, and the Yahoo Mail exploit is still active. In his twitter he said "not effective enough and users are still [at] risk," since the proof-of-concept code can be easily tweaked to continue attacks. 

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Egyptian Hackers Selling Zero-day Exploit of Yahoo Mail For $700

Egyptian Hackers Selling Zero-day Exploit of Yahoo Mail For $700

Those people who wander in many underground hackers community, knows very well that several unethical equipment such as Botnet, Zero-day exploit, black hole exploit kit, malware, undisclosed vulnerabilities and so on were sold there for different prices. Those products were generally priced between $5-$500, but today I will talk about an expensive product, which listed itself top on the black market. I am talking about a new cross-site scripting exploit that enables attackers to steal cookies and access Yahoo email accounts. According to the blog post of Krebs on Security -A zero-day vulnerability in yahoo.com that lets attackers hijack Yahoo! email accounts and redirect users to malicious Web sites offers a fascinating glimpse into the underground market for large-scale exploits. The exploit, being sold for $700 by an Egyptian hacker on an exclusive cybercrime forum, targets a “cross-site scripting” (XSS) weakness in yahoo.com that lets attackers steal cookies from Yahoo! Webmail users. Such a flaw would let attackers send or read email from the victim’s account. In a typical XSS attack, an attacker sends a malicious link to an unsuspecting user; if the user clicks the link, the script is executed, and can access cookies, session tokens or other sensitive information retained by the browser and used with that site. These scripts can even rewrite the content of the HTML page. The hacker posted the following video to demonstrate the exploit for potential buyers. 

“I’m selling Yahoo stored xss that steal Yahoo emails cookies and works on ALL browsers,” wrote the vendor of this exploit, using the hacker handle ‘TheHell.’ “And you don’t need to bypass IE or Chrome xss filter as it do that itself because it’s stored xss. Prices around for such exploit is $1,100 – $1,500, while I offer it here for $700. Will sell only to trusted people cuz I don’t want it to be patched soon!” -said the hacker.  

In response Ramses Martinez, director of security at Yahoo!, said the challenge now is working out the exact yahoo.com URL that triggers the exploit, which is difficult to discern from watching the video. “Fixing it is easy, most XSS are corrected by simple code change,” Martinez said. “Once we figure out the offending URL we can have new code deployed in a few hours at most.”

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VUPEN Researchers Said: They Have First Zero-Day Exploit for Windows 8 & Internet Explorer 10

VUPEN Researchers Said: They Have First Zero-Day Exploit for Windows 8 & Internet Explorer 10

Everyday the users of Microsoft newly launched and so far most advanced windows operating system, I mean Windows 8 are increasing. But we have to keep in mind the security threats are also increasing in parallel. Recently well known French IT security firm Vupen, also known as controversial bug hunters and exploit sellers claimed to have Zero-day exploit of Windows 8. Experts at Vupen Security took credit of cracking the low-level security enhancements featured in Windows 8, Microsoft's latest operating system. According a tweet made by the official account of Vupen Security said it already has a Windows 8 exploit on offer. "Our first 0day for Win8+IE10 with HiASLR/AntiROP/DEP & Prot Mode sandbox bypass (Flash not needed) is ready for customers. Welcome #Windows8" 

Apparently, the exploit combines several unpatched (0-day) security holes in the new version of Windows and the bundled Internet Explorer 10 browser to inject malicious code into systems via specially crafted web pages. Also VUPEN CEO and head of research Chaouki Bekrar sent out a pair of ominous Tweets yesterday claiming to have developed the first zero-day exploit for Windows 8 and Internet Explorer 10, both released Oct. 26. Bekrar hints the exploit is a sandbox bypass for IE10 with ASLR, DEP and anti-ROP mitigations enabled. “We welcome #Windows8 with various 0Ds combined to pwn all new Win8/IE10 exploit mitigations,” Bekrar wrote. 

The exploit allegedly bypasses all of Windows 8's malware protection features: for example the Address Space Layout Randomization (ASLR) function that Microsoft has extended in the current edition of Windows to cover more system areas and offer improved randomisation. Vupen claims that the exploit also bypasses the Data Execution Prevention (DEP) and ROP features as well as Internet Explorer's sandbox-like Protected Mode. A patch for the exploited holes may not become available in the foreseeable future: Vupen said that it discovered the vulnerabilities itself and doesn't plan to disclose them to Microsoft. The company is only offering its exploit to its paying customers, among them government investigation authorities. Should Microsoft close the holes, the elaborate exploit would significantly decrease in value.

-Source (The-H & threatpost)

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BlackHole Exploit Kit 2.0 Released !! (Collection of Latest Exploit Modules)

BlackHole Exploit Kit 2.0 Released !! (Collection of Latest Exploit Modules)

BlackHole exploit kit - which is so far recognized as the most successful exploit kit that includes a collection of exploits to take advantage of vulnerability in the target's machine to download malwares & infect the victim, now became more power full as The BH developers have unleashed a new version of their exploit toolkit on the net. With BlackHole 2.0, the software has been "rewritten from scratch" to fool antivirus & firewall, said the unknown developers in a Russian-language release announcement on Pastebin. In their posting, they advertise new features such as temporary exploit URLs that are only valid for a few seconds, making them harder to analyse. The other features are also quite worthy and makes it a quite faster exploit kit like the new version doesn’t rely on plugindetect to determine the Java version installed. This will speed up the malware download routine. As the link to the malicious payload was easily identified by security software earlier, the BlackHole 2.0 comes with a feature that allows the customer to choose the link. The creators of the exploit kit claim that this way none of the commercial antivirus solutions is able to detect it. Old exploits that were causing the browser to crash have been removed. 

A total of 16 improvements have been claimed to be done in BlackHole’s administrator panel. Now it’s faster, statistics are easier to view, and mobile phones and Windows 8 have been added to allow customers to see precisely what types of devices are infected. The price for the services are quite comparative. All you need is criminal intent and money. The toolkit can now even be rented for a $50 a day and will then run on a server that is owned by the BlackHole team. The annual licence fee for criminals who use their own servers is $1,500. Detailed information about BH 2.0 can be here. 

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Mass Injections Leading to g01pack Exploit Kit

Our ThreatSeeker® Network is constantly on the lookout to protect our customers from malicious attacks.  Recently it has detected a new injection attack which leads to an obscure Web attack kit.  The injection has three phases which will be covered in this blog post. Websense customers are protected from this attack by ACE, our Advanced Classification Engine.

The first phase of the attack is a typical vector for exploit kits to drive traffic to their sites: script injections.  Script HTML code is put on legitimate Web sites meant to drive traffic to the attack kits without the victim's knowledge.  In this case, legitimate sites are injected with malicious JavaScript.

 

In the second phase, this script injection then pulls obfuscated content from another site.  The obfuscated content creates an iframe that is used to pull content from the exploit kit site.  In the second phase, this script injection then pulls obfuscated content from another site.  The obfuscated content creates an iframe that is used to pull content from the exploit kit site. 

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