Category: Botnets

LockPoS Joins the Flock

While revisiting a Flokibot campaign that was targeting point of sale (PoS) systems in Brazil earlier this year, we discovered something interesting. One of the command and control (C2) servers that had been dormant for quite some time had suddenly woken up and started distributing […]

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Pivoting off Hidden Cobra Indicators

On June 13th 2017, US-CERT issued a joint Technical Alert (TA17-164A) entitled Hidden Cobra – North Korea’s DDoS Botnet Infrastructure. The alert, which was the result of analytic efforts between the Department of Homeland Security (DHS) and Federal Bureau of Investigation (FBI), included a list […]

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Another Banker Enters the Matrix

This post takes a look at a new banking malware that has, so far, been targeting financial institutions in Latin America—specifically, Mexico and Peru. Initially, we’ve called it “Matrix Banker” based on its command and control (C2) login panel, but it seems that “Matrix Admin” […]

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Greenbug’s DNS-isms

Over the past few months there has been a lot of research and press coverage on the Shamoon campaigns. These have been the attacks on Saudi Arabian companies where a destructive malware known as Disttrack was deployed. The malware, using stolen credentials, spreads throughout the […]

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Acronym: M is for Malware

A malware researcher known as Antelox recently tweeted about an unknown malware sample that caught our eye. Upon further investigation, it is a modular malware known as Acronym and could possibly be associated with the Win32/Potao malware family and the Operation Potao Express campaign. This […]

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Dismantling a Nuclear Bot

A recent tweet mentioned that a new banking malware called “Nuclear Bot” has started to appear for sale on underground marketplaces. Its price starts around $2500 which is more than double the price of another recent entry to the market. This post dismantles a sample […]

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FlokiBot: A Flock of Bots?

In early October, Flashpoint released an analysis of an underground forum advertisement for a new malware family known as FlokiBot. It took some time before a sample was found in the wild, but a researcher known as hasherezade flagged one on VirusTotal in early November. […]

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Mirai IoT Botnet Description and DDoS Attack Mitigation

Authors:  Roland Dobbins & Steinthor Bjarnason Since its inception in August of 2016, the Mirai ‘Internet-of-Things’ (IoT) botnet, comprised largely of internet-enabled digital video recorders (DVRs), surveillance cameras, and other Internet-enabled embedded devices, has been utilized by attackers to launch multiple high-profile, high-impact DDoS attacks against various Internet properties and […]

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The Great DGA of Sphinx

Update: A few folks have pointed out that this DGA is associated with Zloader/DELoader/Terdot Zeus variant and not Sphinx. This post takes a quick look at Sphinx’s domain generation algorithm (DGA). Sphinx, another Zeus-based banking trojan variant, has been around circa August 2015. The DGA […]

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