Posts Categorized: malware


A peek inside the Cythosia v2 DDoS Bot

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by Dancho Danchev With DDoS extortion and DDoS for hire attacks proliferating, next to the ever decreasing price for renting a botnet, it shouldn’t come as a surprise that cybercriminals are constantly experimenting with new DDoS tools. In this post, I’ll profile a newly released DDoS bot, namely v2 of the Cythosia DDoS bot.

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Everyone has a role in protecting a corporate infrastructure (Part 1)

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By Jacques Erasmus This time of year, those of us in information security become wary of crafty criminals leveraging the winter holidays to prey on our employees’ lack of awareness online in a number of ways. All it takes is for one Trojan to infect a single PC in a company to put an entire infrastructure at risk. Everyone plays a role in protecting the assets and information of their organization. To help explain what this means for you as an IT manager, an employee or even a home user, we have developed a two-part primer on common threats you […]

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Reflections on mobile security

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By Armando Orozco Be wary the next time you enter your passcode into your iPhone on the bus – someone could be shoulder surfing. In fact, a team of researchers from the University of North Carolina has developed a system to watch you pecking out characters on your phone, analyse the video, and produce a pretty accurate guess of what you were typing. When people talk about key loggers, they’re usually thinking about malware that sits on a computer and surreptitiously monitors what keys people are pressing. But these university researchers are applying an entirely different approach to key logging. […]

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This blackhole exploit kit gives you Windows Media Player and a whole lot more

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By Mike Johnson As a follow-up to the Blackhole Exploit posting, I thought I would share one aspect of my job that I truely enjoy: Discovery. While investigating some active urls being served up via a blackhole kit, I noticed something quite odd, as I would end up on sites that had malicious code injected into their webpages. Once the redirection to the blackhole kit was initiated, I saw the usual exploits taking place, first being Internet Explorer and Adobe Flash, then onto Adobe Reader and Java. This time, the kit didn’t stop there. Internet Explorer proceeded to launch Windows Media Player. Since I had never […]

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Outdated Operating System? This BlackHole Exploit Kit has you in its sights

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By Mike Johnson Several weeks back, I was presented with a group of snapshots from an active BlackHole Exploit Kit 1.2 Control Panel. As with other toolkits I’ve seen in the wild, this one has all the makings of some real bad medicine. The authors have yet again gone to the trouble of making this toolkit incredibly easy to use and widely available for a price. Just a little unsavory web hosting in a country with few or no diplomatic relations and off to the races they go. It appears this toolkit is configurable in both Russian and English, making one wonder its true origins. I’ve […]

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Awake at all hours during Cyber Security Awareness Month

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By Jacques Erasmus I’ve been having trouble sleeping lately, and last night I pinpointed why. October has presented me with a perfect storm of Internet security developments: I embarked on my first few weeks as chief information security officer for Webroot amidst the most significant consumer product launch the company has ever had. These activities alone would’ve been enough to keep corporate security top of mind 24/7, but their occurrence during Cyber Security Awareness Month further drove it home for me. So I thought perhaps it may be cathartic for me, and helpful for you, if I shared some of […]

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Non-executable malicious files and code – Thre@t Reply

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.exe, PHP, HTML, and the list goes on. How many different kinds of files and code can potentially infect your PC? Webroot threat research analyst Nathan Collier explains a few of the the types of potentially dangerous files, other than the common executable (.exe) that can be found on a Windows PC and cause harm to it. [youtube=http://www.youtube.com/watch?v=CFH8VxP7gmY] If you have a question you want answered by one of our threat experts send it to us! Comment below, tweets us (www.twitter.com/webroot), or email it to us (blog@webroot.com).

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Trojans Employ Misdirection Instead of Obfuscation

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An unusual family of Trojans, apparently of Chinese origin, engages in rootkit-like behavior which seems designed not to hide the presence of the malware on an infected system, but to misdirect or confuse a technical person who might be using system analysis tools on an infected computer. The Trojans all originated from a server operated by a free Web host in China, and each sample we tested sent profiling data about the infected system to a command-and-control server located on yet another free Web host, also located in China. It appears to have capabilities to receive instructions to download other […]

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