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Arbor Networks
  • Reaper Madness

    Arbor Networks
    On October 19th, a team of security researchers warned of a new IoT Botnet that had already infected “an estimated million organizations” and that was poised to “take down the internet”. This report was subsequently picked up by the press and spread quickly via social media. […]
  • SnatchLoader Reloaded

    Arbor Networks
    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 […]
  • The Flusihoc Dynasty, A Long Standing DDoS Botnet

    Arbor Networks
    Since 2015, ASERT has observed and followed a DDoS Botnet named Flusihoc. To date very little has been published about this family, despite numerous anti-virus and intrusion detection signatures created by various vendors. Flusihoc has remained persistent with multiple variants, over 500 unique samples in […]
  • The Formidable FormBook Form Grabber

    Arbor Networks
    More and more we’ve been seeing references to a malware family known as FormBook. Per its advertisements it is an infostealer that steals form data from various web browsers and other applications. It is also a keylogger and can take screenshots. The malware code is […]
  • Down to the WireX

    Arbor Networks
    Over the course of the last few weeks, a botnet comprised mainly of Android mobile devices has been utilized to launch a high-impact DDoS extortion campaign against multiple organizations in the travel and hospitality sector. This botnet, dubbed ‘WireX’, is only the second mobile botnet […]
  • LockPoS Joins the Flock

    Arbor Networks
    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 […]
  • Patching Not Enough to Stop Petya

    Arbor Networks
    Voluminous amounts of information have already been disseminated regarding the “Petya” (or is it “NotPetya”? [1]) ransomware that hit the Ukraine hard [2] along with organizations such as “the American pharmaceutical giant Merck, the Danish shipping company AP Moller-Maersk, the British advertising firm WPP, Saint-Gobain […]
  • Pivoting off Hidden Cobra Indicators

    Arbor Networks
    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 […]
  • Another Banker Enters the Matrix

    Arbor Networks
    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” […]
  • Zyklon Season

    Arbor Networks
    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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