N2K Networks
Research Saturday
Every Saturday, we sit down with cybersecurity researchers to talk shop about the latest threats, vulnerabilities, and technical discoveries.
Author
N2K Networks
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Podcast website
Latest episode
Jul 11, 2026
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Episodes
Decrypting ransomware for good. 12.10.2019 22:21
Michael Gillespie is a programmer at Emsisoft, as well as a host of the popular ID Ransomware web site that helps victims identify what strain of ransomware they may have been infected with, and what decryptors may be available. He's written many decryptors himself, most recently for the Syrk strain of ransomware. Links to the research and Michael's work: https://blog.emsisoft.com/en/33885/emsiso...
The fuzzy boundaries of APT41. 05.10.2019 25:20
Researchers at FireEye recently released a report detailing the activities of APT41, a Chinese cyber threat group notable for the range of tools they use, their origins in the world of video gaming, and their willingness to shift from seemingly state-sponsored activity to hacking for personal gain. Nalani Fraser and Fred Plan contributed to the report, and they join us to share their findings. Th...
Focusing on Autumn Aperture. 28.09.2019 20:53
Researchers at Prevalion have been tracking a malware campaign making use of antiquated file formats and social engineering to target specific groups. Danny Adamitis and Elizabeth Wharton are coauthors of the report, and they join us to share their findings. The research can be found here: https://blog.prevailion.com/2019/09/autumn-aperture-report.html Learn more about your ad choices. Visit mega...
Leaky guest networks and covert channels. 21.09.2019 17:48
Many users of inexpensive internet routers use guest network functionality to help secure their home networks. Researchers at Ben Gurion University have discovered methods for defeating these security measures. Dr. Yossi Oren joins us to share their findings. The original research is here: https://www.usenix.org/system/files/woot19-paper_ovadia.pdf Learn more about your ad choices. Visit megaphone...
Bluetooth blues: KNOB attack explained. 14.09.2019 19:18
A team of researchers have published a report titled, "KNOB Attack. Key Negotiation of Bluetooth Attack: Breaking Bluetooth Security." The report outlines vulnerabilities in the Bluetooth standard, along with mitigations to prevent them. Daniele Antonioli is from Singapore University of Technology and Design, and is one of the researchers studying KNOB. He joins us to share their findings. The re...
VOIP phone system harbors decade-old vulnerability. 07.09.2019 28:25
Researchers at McAfee's Advanced Threat Research Team recently published the results of their investigation into a popular VOIP system, where they discovered a well-know, decade-old vulnerability in open source software used on the platform. Steve Povolny serves as the Head of Advanced Threat Research at McAfee, and he joins us to share their findings. The original research can be found here: htt...
Emotet's updated business model. 31.08.2019 25:24
The Emotet malware came on the scene in 2014 as a banking trojan and has since evolved in sophistication and shifted its business model. Researchers at Bromium have taken a detailed look at Emotet, and malware analyst Alex Holland joins us to share their findings. The research can be found here: https://www.google.com/url?q=https://www.bromium.com/resource/emotet-a-technical-analysis-of-the-destru...
Gift card bots evolve and adapt. 24.08.2019 25:47
Researchers at Distil Networks have been tracking online bots targeting ecommerce gift card systems of major online retailers. The threat actors show remarkable resourcefulness and adaptability. Jonathan Butler is technical account team manager at Distil Networks, part of Imperva, and he joins to share their findings. The research can be found here: https://resources.distilnetworks.com/all-blog-po...
Detecting dating profile fraud. 17.08.2019 27:22
Researchers from King’s College London, University of Bristol, Boston University, and University of Melbourne recently collaborated to publish a report titled, "Automatically Dismantling Online Dating Fraud." The research outlines techniques to analyze and identify fraudulent online dating profiles with a high degree of accuracy. Professor Awais Rashid is one of the report's authors, and he joins...
Unpacking the Malvertising Ecosystem. 10.08.2019 28:27
Researchers at Cisco's Talos Unit recently published research exploring the tactics, technics and procedures of the global malvertising ecosystem. Craig Williams is head of Talos Outreach at Cisco, and he guides us through the life cycle of malicious online ads, along with tips for protecting yourself and your organization. The research can be found here: https://blog.talosintelligence.com/2019/0...
Package manager repository malware detection. 03.08.2019 13:56
Researchers at Reversing Labs have been tracking malware hidden in software package manager repositories, and it's use as a supply chain attack vector. Robert Perica is a principal engineer at Reversing Labs, and he joins us to share their findings. The research can be found here: https://blog.reversinglabs.com/blog/suppy-chain-malware-detecting-malware-in-package-manager-repositories Learn more...
Day to day app fraud in the Google Play store. 27.07.2019 22:25
Researchers at bot mitigation firm White Ops have been tracking fraudulent apps in the Google Play store. These apps often imitate legitimate apps, even going so far as to lift code directly from them, but instead of providing true functionality they harvest user data and send it back to command and control servers. Marcelle Lee is a principal threat intel researcher at White Ops, and she shares t...
Nansh0u not your normal cryptominer. 20.07.2019 20:06
Researchers at Guardicore Labs have been tracking an unusual cryptominer that seems to be based in China and is targeting Windows MS-SQL and phpMyAdmin servers. Some elements of the exploit make use of sophisticated components previously associated with nation-state actors. Ophir Harpaz and Daniel Goldberg are members of the Guardicore Labs team, and they join us to explain their findings. The res...
Opportunistic botnets round up vulnerable routers. 13.07.2019 20:26
Researchers at Netscout's ASERT Team have been tracking the growth of botnets originating in Egypt and targeting routers in South Africa. The payload is a variant of the Hakai DDoS bot. Richard Hummel is threat intelligence manager at Netscout, and he joins us to share their findings. The original research is here: https://www.netscout.com/blog/asert/realtek-sdk-exploits-rise-egypt Learn more abou...
Giving everyone a stake in the success of Open Source implementation. 29.06.2019 24:10
Synopsys recently published the 2019 edition of their Open Source Security and Risk Analysis (OSSRA) Report, providing an in-depth look at the state of open source security, compliance, and code quality risk in commercial software. Tim Mackey is principal security strategist within the Synopsys Cyber Research Center, and he joins us to share their findings. The research can be found here: https://...
Middleboxes may be meddling with TLS connections. 22.06.2019 24:12
Researchers at Cloudflare have been examining HTTPS interception, a technique that weakens security, and have developed tools to help detect it. Nick Sullivan is head of cryptography at Cloudflare, and he joins to us share their findings. The research can be found here: https://blog.cloudflare.com/monsters-in-the-middleboxes/ Learn more about your ad choices. Visit megaphone.fm/adchoices
Apps on third-party Android store carry unwelcome code. 15.06.2019 14:40
Researchers at Zscaler have been tracking look-alike apps in third-party Android app stores that carry malicious code. Deepen Desai is VP of security research and operations and Zscaler, and he joins us to share their findings. The original research can be found here: https://www.zscaler.com/blogs/research/third-party-android-store-sms-trojan Learn more about your ad choices. Visit megaphone.fm/a...
Xwo scans for default credentials and exposed web services. 08.06.2019 16:38
Researchers at AT&T Alien Labs have been tracking a new malware family they've named "Xwo" that's scanning systems for default credentials and vulnerable web services. Tom Hegel is security researcher with AT&T Alien Labs, and he share their findings. The original research is here: https://www.alienvault.com/blogs/labs-research/xwo-a-python-based-bot-scanner Learn more about your ad choices. Visi...
Blockchain bandits plunder weak wallets. 01.06.2019 21:34
Adrian Bednarek is a senior research analyst at Independent Security Evaluators. He and his colleagues looked at weak private cryptocurrency keys on the Ethereum blockchain in an attempt to discover how and why they are being generated as well as how bad actors are taking advantage of them. The original research is here: https://www.securityevaluators.com/casestudies/ethercombing/ Learn more about...
A fresh look at GOSSIPGIRL and the Supra Threat Actors. 25.05.2019 31:49
Chronicle researchers Juan Andres Guerrero Saade and Silas Cutler recently published research tracking the development of the Stuxnet family of malware, which ultimately led them to the GOSSIPGIRL Supra Group of threat actors. Juan Andres Guerrero Saade joins us to share their findings. The research can be found here: https://medium.com/chronicle-blog/who-is-gossipgirl-3b4170f846c0 Learn more abo...
Elfin APT group targets Middle East energy sector. 18.05.2019 17:41
Researchers at Symantec have been tracking an espionage group known as Elfin (aka APT 33) that has targeted dozens of organizations over the past three years, primarily focusing on Saudi Arabia and the United States. Alan Neville is a principal threat intelligence analyst at Symantec, and he joins us to share their findings. The research can be found here: https://www.symantec.com/blogs/threat-in...
Steganography enables sophisticated OceanLotus payloads. 11.05.2019 19:53
Researchers at Blackberry Cylance have been tracking payload obfuscation techniques employed by OceanLotus (APT32), specifically steganography used to hide code within seemingly benign image files. Tom Bonner is director of threat research at Blackberry Cylance, and he joins us to share their findings. The original research can be found here: https://www.cylance.com/en-us/lp/threat-research-and-in...
Sea Turtle state-sponsored DNS hijacking. 04.05.2019 25:56
Researchers at Cisco Talos have been tracking what they believe is a state-sponsored attack on DNS systems, targeting the Middle East and North Africa. This attack has the potential to erode trust and stability of the DNS system, so critical to the global economy. Craig Williams is director of Talos Outreach at Cisco, and he joins us to share their findings. The original research can be found her...
Deep Learning threatens 3D medical imaging integrity. 27.04.2019 23:32
Researchers at Ben Gurion University in Israel have developed techniques to infiltrate medical imaging system networks and alter 3D medical scans within, fooling both human and automated examiners with a high rate of success. Yisroel Mirsky is a cybersecurity researcher and project manager at Ben Gurion University, and he joins us to share what his team discovered. The original research can be fo...
Undetectable vote manipulation in SwissPost e-voting system. 20.04.2019 28:21
Researchers have discovered a number of vulnerabilities in the SwissPost e-vote system which could allow undetectable manipulation of votes. Dr Vanessa Teague is Associate Professor and Chair, Cybersecurity and Democracy Network at the Melbourne School of Engineering, University of Melbourne, Australia. She joins us to explain her team's findings. The original research is here: https://people.eng...
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