Category: Reverse Engineering

SnatchLoader Reloaded

Executive Summary SnatchLoader is a “downloader” malware—a type of malware that specializes in distributing (or loading) other malware onto infected computers. We first started seeing it in the wild around January 2017, but after a few months it went dormant. Recently, development of the malware […]

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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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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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Zyklon Season

The ASERT research team has recently done some work reverse engineering a family of malware called “Zyklon H.T.T.P.” that is written using the .Net framework. Zyklon (German for “cyclone”) is a large, multi-purpose trojan that includes support for a variety of malicious activities, including several […]

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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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TrickBot Banker Insights

A new banking trojan, TrickBot, has seemingly risen from the ashes left behind by the November 2015 takedown of Dyreza/Dyre infrastructure and the arrests of threat actors identified by Russian authorities. Dyreza was used to target customers of over 1000 U.S. and U.K. banks and other […]

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