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Bypassing MiniUPnP Stack Smashing Protection
Jan 27,2016
This post was authored by Aleksandar Nikolic, Warren Mercer, and Jaeson Schultz. Summary MiniUPnP is commonly used to allow two devices which are behind NAT firewalls to communicate with each other by opening connections in each of the firewalls, com...
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Overcoming the DNS "Blind Spot"
Jan 22,2016
[ed. note -this post was authored jointly by John Stuppi and Dan Hubbard] The Domain Name Service (DNS) provides the IP addresses of intended domain names in response to queries from requesting end hosts. Because many threat actors today are leveragi...
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Rigging compromise -RIG Exploit Kit
Jan 07,2016
This Post was Authored byNick Biasini, with contributions byJoel Esler Exploit Kits are one of the biggest threats that affects users, both inside and outside the enterprise, as it indiscriminately compromises simply by visiting a web site, deliverin...
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Cognitive Research: Fake Blogs Generating Real Money
Sep 23,2015
Summary In the past several months Cisco Cognitive Threat Analytics (CTA) researchers have observed a number of blog sites using either fake content or content stolen from other sites to drive traffic to click on ad-loaded web sites. We have observed...
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SYNful Knock: Protect Your Credentials, Protect Your Network
Sep 17,2015
Interest in IT security has never been higher. So when a new type of attack comes along, it attracts the attention of our customers and others in the industry. Earlier this week Cisco and Mandiant/Fireye released information about the so-called SYNfu...
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My Resume Protects All Your Files
Jun 05,2015
This post was authored byNick Biasini Talos has found a new SPAM campaign that is using multiple layers of obfuscation to attempt to evade detection.  Spammers are always evolving to get their messages to the end users by bypassing SPAM fil...
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Angler EK: More Obfuscation, Fake Extensions, and Other Nonsense
Jun 05,2015
This post was authored byNick Biasini Late last week Talos researchers noticed a drastic uptick in Angler Exploit Kit activity. We have covered Angler previously, such as the discussion of domain shadowing. This exploit kit evolves on an almost ...
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Little Links, Big Headaches
May 20,2015
This post was authored by Earl Carter & Jaeson Schultz. Talos is always fascinated by the endless creativity of those who send spam. Miscreants who automate sending spam using botnets are of particular interest. Talos has been tracking a spa...
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Threat Spotlight: Rombertik -Gazing Past the Smoke, Mirrors, and Trapdoors
May 04,2015
This post was authored by Ben Baker and Alex Chiu. Executive Summary Threat actors and security researchers are constantly looking for ways to better detect and evade each other.  As researchers have become more adept and efficien...
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Threat Spotlight: TeslaCrypt -Decrypt It Yourself
Apr 27,2015
This post was authored by:Andrea Allievi,Earl Carter&Emmanuel Tacheau Update 4/28: Windows files recompiled with backward compatibility in Visual Studio 2008 Update 5/8: We've made the source code available via Github here Update 6/9/2016: W...
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Threat Spotlight: SSHPsychos
Apr 09,2015
This post was authored byNick Biasini,Matt Olney, &Craig Williams   Introduction Talos has been monitoring a persistent threat for quite some time, a group we refer to as SSHPsychos or Group 93. This group is well known for creating signifi...
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Threat Spotlight: Spam Served With a Side of Dridex
Apr 06,2015
This post was authored by Nick Biasini with contributions from Kevin Brooks Overview The use of macro enabled word documents has exploded over the last year, a primary example payload being Dridex. Last week, Talos researchers identified another...
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