The Blackhole Exploit kit is still a very popular attack on the web. They are many variants of the threat. Here is a detailed analysis of one Exploit kit page and the obfuscation technique leveraged by the attack. In this example, the exploit is heavily obfuscated. The exploit has been encoded and stored as HTML and JavaScript is used to decode the payload and run
I’ve been keeping an eye out for a suitably interesting opportunity to comment on the current state of the Blackhole Exploit Kit (BHEK) attacks, and when I saw this in the malware logs, I just had to share… In short, the Blackhole attacks continue, with new BHEK servers coming on line each day, hosting a variety of domains and subdomains, so not much has changed. One
Contribution: Takayoshi Nakayama I was going through some files we acquired related to targeted attacks the other day and an unusual set of files caught my eyes. We did some analysis on the files and it turns out a pair of files in the set exploits a vulnerability we have not seen in the wild before. Microsoft is aware of the issue and notes users who
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This blog post is based on a joint report by Zscaler and Seculert (their blog post). Researchers from both companies separately identified attacks which used a remote access tool (RAT) malware that apparently targeted defense-related organizations. With joined forces, we analyzed the incidents that we observed and those published in the open-source to identify attack patterns and incidents from early 2009 to present. Figure 1: Screenshot of Report
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This past weekend one compromised Web site in particular caught my attention. Based on my analysis, the site was compromised because it was running an old version of Wordpress (3.2.1) that is vulnerable to publicly available exploits [1] [2]. The Web site injection is only somewhat interesting. What is more interesting is the redirection chain and
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A few days ago, hundreds of websites, based on WordPress 3.2.1, were compromised. The attacker uploaded an HTML page to the standard Uploads folder and that page redirects the user to the Phoenix Exploit Kit. Its logs show that users from at least four hundred compromised sites were redirected to Phoenix exploit pages. Here is a partial list of those websites: Partial list of compromised WordPress websites The content uploaded by
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S. Korean handlers are slow to take down the publicly distributed malicious code exploiting CVE-2012-0003, a vulnerability patched in Microsoft’s January 2012 patch release MS12-004. We have discussed with reporters that the code has been available since the 21st, and a site appears to have been publicly attacking very low numbers of Korean users over the past day or so. The site remains up at this
Symantec Security Response is aware of in-the-wild malware exploiting the Microsoft Windows Media Player 'winmm.dll' MIDI File Parsing Remote Buffer Overflow Vulnerability (BID 51292). Microsoft has already issued a patch against this vulnerability in the monthly patch release this January. Applying the patch is strongly recommended. There are several components involved in this live attack: a.exe baby.mid i.js mp.html Symantec products detect mp.html and i.js as Trojan.Malscript. The vulnerable baby.mid file
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The WebsenseR ThreatSeekerR Network has been tracking an ongoing malicious email campaign in which a recipient is asked to click a link to check a bill mistakenly received by another user. We have been monitoring campaigns of thousands of emails similar to this one for a while now and notice that the Phoenix Exploit Kit is used. The campaign starts with
Today, WebsenseR ThreatSeekerR Network alerted us that entrepreneur.com has been compromised by cyber criminals, resulting in potentially malicious content being downloaded to a user’s machine. Entrepreneur.com is a very popular information and community resource for small businesses on the web (see Alexa rank).Websense customers are protected from these threats by ACET, our Advanced Classification Engine.Update: We have contacted entrepreneur.com to
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Another malicious spam, this time leading to an exploit page on coolwebzuzuzu.ru/main.php. Date: Tue, 16 Jan 2012 02:50:00 +0000 From: officejet@victimdomain.com Subject: Fwd: Fwd: Scan from a Xerox W. Pro #9522304 A Document was sent to you using a XEROX OFFICE N220337423. SENT BY: LAURA IMAGES : 6 FORMAT (.JPG) DOWNLOAD DEVICE: PD55695SK7AO559107L coolwebzuzuzu.ru is hosted on 66.225.237.222, HostForWeb in Chicago. There is another malware site on an adjacent IP. You
My daughter should be credited (or blamed) with the Cute, Pink, and Infected release.She was playing games on my computer and suddenly screamed: “The internet has stopped!”Yes indeed, the browser had shut down on her. All I knew at the time was that this involved some online games and a google search using the word “games” or
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The big malware story for me over the last month is probably the surge in exploit kit sites hosting the “Blackhole” kit. (BTW, nice write-up last month on the kit on Imperva’s blog.) Bad Guys like exploit kits because they are a convenient way to leverage the work of multiple specialists — it’s nice to let somebody else do the challenging technical work of
Malware authors always seem to closely monitor trends in Web security development in order to create a variety of browser-based attacks. Just to name a few, techniques such as code obfuscation, plug-in detection and affiliate management are often used. This is why we, at M86 Security, weren’t surprised to see a malicious site which loads parts of its attack using AJAX (Asynchronous JavaScript and XML), a method for client-side code
Do you need Java in your web browser? Seriously, do you? If not, get rid of it. Turns out, most users don’t need Java any more, yet people keep running it. Do not confuse Java with JavaScript: it’s hard to use the web without JavaScript. But JavaScript has nothing to do with Java. The risks of Java are nicely illustrated by the recent Java Rhino vulnerability
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1. “YouTube Premium plugin” scams spreading on Facebook On the Facebook/YouTube scam front this week we came across phony posts that led to the usual survey sites, but also a new and potentially malicious YouTube Premium plugin (for Firefox/Chrome). The video offered is of an uncommonly well endowed Italian model and TV hostess, Marika Fruscio, suffering a “wardrobe malfunction” during a soccer match. A little web research suggests that incident
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More NACHA themed spam this morning that redirects victims through a hacked legitimate site to a malware laden page, this time hosted on evrymonthnighttry.com or glasseseverydaynow.com. These sites are hosted on 46.183.217.119 (Dataclub, Latvia). I can’t see anything at all of value in 46.183.216.0/21 so blocking access to all of that range might be prudent. It also attempts to load an exploit from a site called bbb-complains.org
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When I read this blog entry a few days ago, the first question that entered my head was, “Is this another targeted attack?”. I took a look at the .PDF discussed in the entry and it appeared to be a document addressed to employees of a certain defense contractor. Trend Micro products detect this malicious .PDF as TROJ_PIDIEF.EGG. Below is a screenshot of the survey.It appears to
