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Nu.nl served alongside a clock-based javascript code that experts say is designed specifically to infect site visitors by running a Trojan horse. The enemies used their servers in India, where the exploit kit was hosted.
Eric Lohman, a developer at security company SurfRight, tweeted that the sidebar of the news site is being hidden by javascript “g.js”. The code is installed with Loman, a nuclear exploit package activated via a web server in India. An exploit script that checked for vulnerabilities in the browser and popular plugins such as Flash and then Adobe Reader. If the manipulation was detected and transmitted to the computer, then this is Sinowal malware, a Trojan horse of Russian origin that tries to steal constantly updated banking information. Sinowal hangs in the master boot sector and usually loads even every time you restart your computer.
According to Loman, Nu.The nl has trojans between 11:30 am and 12:30 pm roughly every day. This time was chosen as consciously as possible, since around noon the network attracts more visitors. It is reported that aboutabout 12:00 pm, the attackers adapted their current Javascript code for another web to indicate that the kit exploit was to be hosted. Loman also states that there are currently reports of Windows users being infected with Trojans.
It is not clear how the attackers ran the Javascript code on the website’s server. Nu.nl has now disabled all javascript code. It will also currently house a research center.
Update 16:10: Now.en now reports that the real Weday CMS account “fell into the wrong hands.” Then from 11:30 am to 12:30 pm, the malware was offered through the corresponding site. Nu.nl assumes that the functionality of the malware has been removed. In addition, the new login details are distributed to administrators and editors, and the files are stored by nageplozen. The site promises that existing page content will also be checked for potentially malicious code.
March 14, 2012, another very natural day at the office, going through my massive to-do list and planning my day’s work. ANDon any ordinary day, my plans for the day are suddenly interrupted by one incident. Our Network Analysts at the Security Operations Center seemed very busy, and these companies have reached out to your current Intel department for help. The SOC was greatly amused by the numerous incidents that began at exactly 11:30 am CET. We analyzed network leads, exploit kit and installed trojans and found that they are common components of European/Russian Eastern cybercrime known as Nuclear Pack exploit kit, SmokeLoader and Sinowal/Torpig/Mebroot trojans. We have contacted SurfRight to let them know that something worthwhile is going on, but thankfully they are working on it. We met on SurfRight a week earlier and mentioned problems with Sinowal MBR infestation and simply not being detected and removed by most modern cleaning/removal products, they are also aware of this and are still working on it. So it was a good time for them to spend a little more time on it and with success because they were really able to add detection in a short time.time and have the bootkit cleanup function ready for the next day.
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The second metric was to look at which website is trusted to infect, typically seen on websites with a high number of visitors per day, with each infection being due to ads. Possibly through the use of a compromised ad service that redirects many visitors to an exploit kit. This was done for a case study in August 2011. This interesting attack on the OpenX ad server software was also used to distribute the Sinowal malware. Another popular method is to purchase legitimate ads that are available for a specific country and, once the advertiser has verified the legitimacy of the ad, modify the page to redirect visitors to an exploit kit for you. This method is called malicious advertising. While malicious ads require money, stolen credit cards are often used to top up an ad account’s balance to ensure many clicks before the balance ischildren exhausted.
So I started looking into the data that my wife and I had. When I look at the web, application traffic doesn’t let me know where the trade-off is, because the refocus is added to the DOM of the home page, so the referrer for most sets that work is actually http://www. nu.nl Due to a previous incident in August 2011, I started watching downloaded content in my hands on a server advertisement. Some time has passed, the site is a painstaking work, manually digging through all the data to find a needle in a haystack. Well, I couldn’t trace the source of the infection, as our phone sandbox showed that every nu.nl-related hit caused a redirect from the manipulation kit. This began to confuse me, then there was only one thing left, when I usually look at the files of the nu.nl site myself, now nothing stood out on the main page, like a set of remote scripts, iFrame or hidden javascript . I started when you needed to download various javascript files that stood out only because they had a release date of exactly 11:30:00 CET.
HTTP/1.1 100 OKServer: Apache Vary: host Last modified: Wednesday, March 14 10:30:00 GMT 2012 Check cache: max-age=86400 Expires: Thursday, March 15, 2012 10:31:54 GMT. Content Type: Application/x-Javascript P3P: policyref="http://www.nu.nl/w3c/p3p.xml", CP="NON DSP COR NID CURa ADMa DEVa PSAa IVAa psda IVDa OUR IND UNI COM NAV INT STA" Content length: 2290...
Javascript is obfuscated and has a simple obfuscator, but if you normally view it by hand it’s easy to miss because javascripts are probably files that are often archived or compressed to fix bandwidth. The file was simple and we were only interested in seeing where it would redirect clients, which was interesting because it redirected systems specifically from Windows Vista/7/8 to a separate location in the Nuclear Pack exploit kit. At the time, we contacted nu.nl and submitted a nasty script for localization, and it was removed soon after. The main page has been modified with g incl.js and history has been added recently.
Improve the speed of your computer today by downloading this software - it will fix your PC problems.Что делать с удалением шпионского ПО Nu.nl?
Hoe Om Te Gaan Met Nu.nl Malware Verwijdering?
Como Isso Pode Lidar Com A Remoção De Malware Nu.nl?
Wie Gehe Ich Vor, Wenn Nu.nl-Malware Entfernt Wird?
Comment Gérer La Suppression Des Logiciels Malveillants Nu.nl ?
Come Affrontare Positivamente La Rimozione Del Malware Nu.nl?
Hur Hanterar Man Borttagning Av Spionprogram Nu.nl?
Nu.nl 악성코드 제거로 어떻게 홍보하나요?
Jak Sobie Radzić Z Usuwaniem Złośliwego Oprogramowania Nu.nl?
¿Cómo Lidiar Con La Eliminación Del Software Publicitario Nu.nl?
