

The Cybersecurity Defenders Podcast
LimaCharlie
An accessible but technical podcast about cybersecurity and the people who keep the internet safe. The podcast is built as a series of segments: we will be looking back at the last couple of weeks in cybersecurity news, talking to different people in the industry about areas of their expertise, we're going to break apart some of the TTPs being used by adversaries, and we will even cover a little bit of hacker history.
Episodes
Mentioned books

Mar 13, 2024 • 19min
#109 - Hacker History: The MOVEit cyberattack
In this episode of The Cybersecurity Defenders Podcast, we recount some hacker history, and with the help of John Hammond, Principal Security Researcher at Huntress, tell the story of the MOVEit cyberattack: the biggest data theft of 2023.The MOVEit cyberbreach, was a far-reaching cyber attack that unfolded with significant implications worldwide. The breach initially came to light on June 3, when the Government of Nova Scotia disclosed that approximately 100,000 of its current and former employees had been affected, signaling the severity of the breach's impact.The scope of the breach widened on June 5, as it became apparent that numerous organizations in the United Kingdom had also fallen victim. Among those affected were prominent entities such as the BBC, British Airways, Boots, Aer Lingus, and the payroll service provider Zellis. This phase of the breach underscored its indiscriminate nature, with targets spanning across various sectors.Further developments were reported on June 12, with major organizations like Ernst & Young, Transport for London, and Ofcom announcing their entanglement in the breach. Of particular concern was Ofcom's revelation that personal and confidential information had been compromised, highlighting the breach's capacity to infiltrate and extract sensitive data.The United States felt the breach's ramifications by June 15, with reports confirming that the Department of Energy, among other federal entities, was impacted by the MOVEit vulnerability. The breach's reach extended further on June 16, affecting state-level organizations such as the Louisiana Office of Motor Vehicles and Oregon Driver and Motor Vehicle Services, thereby impacting millions of American residents.By October 25, 2023, a report from the cybersecurity firm Emsisoft indicated that the MOVEit cyberbreach had affected over 2,500 organizations globally, with a significant 80% of these being based in the United States. This breach highlights the critical vulnerabilities within digital infrastructures and underscores the urgent need for enhanced security measures to protect against such widespread cyber threats.This story was written by the talented Nathaniel Nelson and produced by the team at LimaCharlie.And a special thank you to John Hammond, Principal Security researcher at Huntress, for sharing his expertise and experienceIf you have any feedback or ideas for future topics or guests, please send an email to defenders@limacharlie.io.

Mar 8, 2024 • 39min
#108 - Intel Chat: Nood RAT, GTPDOOR, Pikabot, Bifrost & the Executive Order on Preventing Access to Americans
Explore the evolution of malware with insights on Nood RAT and its implications for Linux users. Delve into the dark side of cyber warfare and its potential to disrupt physical systems. Investigate the advanced evasion techniques employed by Pikabot and the resurgence of Bifrost malware. Learn about the Biden administration's Executive Order aimed at protecting sensitive American data from foreign exploitation, while addressing the vagueness and implementation challenges it faces. The discussion also touches on new cybersecurity laws enhancing protections for cloud providers.

Mar 6, 2024 • 25min
#107 - Weaponizing ASCII escape sequences with Fredrik (STÖK) Alexandersson
In this episode of The Cybersecurity Defenders Podcast, we take a close look at weaponizing ASCII escape sequences with Fredrik (STÖK) Alexandersson from Truesec.Fredrik (STÖK) Alexandersson is a dynamic individual driven by a boundless curiosity and a passion for sharing knowledge. With over three decades of professional experience, he's hacked his way through realms ranging from computers and technology to marketing, fashion, communication, and even the human psyche. Renowned for his lightning-fast presentations and his knack for making complex technical subjects entertaining, STÖK is a prominent figure in the cybersecurity community. His meticulous attention to detail, insatiable curiosity, and "Good Vibes Only" attitude have inspired millions worldwide and earned him recognition from industry giants like Salesforce, Microsoft, and Verizon Media, among many others. Currently, he working as a Hacker and Creative Director at TRUESEC.You can follow him on Twitter/X here.And you can watch his talk on Weaponizing ASCII escape sequences here.

Feb 29, 2024 • 28min
#106 - Intel Chat: LockBit, TicTacToe Dropper, Google Cloud Run & I-Soon
In this episode of The Cybersecurity Defenders Podcast, we discuss some cutting-edge intel coming out of LimaCharlie's community Slack channel.Law enforcement from 10 countries - in a joint operation called ‘Operation Cronos’ - have disrupted the criminal operation of the LockBit ransomware group.FortiGuard has identified a grouping of malware droppers used to deliver various final-stage payloads through 2023 they are calling the TicTacToe dropper.Cisco Talos researchers have observed a significant increase in the volume of malicious emails leveraging the Google Cloud Run service to infect potential victims with banking trojans. A massive leak from a Chinese Ministry of Public Security contractor called I-Soon shows that Bejing’s intelligence and military groups are attempting large-scale, systemic cyber intrusions against foreign governments, companies, and infrastructure.

Feb 28, 2024 • 1h 12min
#105 - Cybersecurity in space systems with Tim Fowler, Offensive Security Analyst at Black Hills Information Security
Delve into cybersecurity in space systems with Tim Fowler from Black Hills Information Security. Explore the evolving relationship between technology and space exploration. Trace the history of space exploration from Sputnik to SpaceX. Uncover cybersecurity challenges in space projects and vulnerabilities in space systems. Learn about cube satellites, orbital networks, and cybersecurity mitigation strategies. Gain insights on the future of cybersecurity integration with business objectives.

Feb 23, 2024 • 38min
#104 - Intel Chat: Pikabot, OpenAI boots APTs, GRU Military Unit 26165 & the Akira ransomware group
In this episode of The Cybersecurity Defenders Podcast, we discuss some cutting-edge intel coming out of LimaCharlie's community Slack channel.ZScaler ThreatLabz are reporting on some recent campaigns, which started in February 2024, where they observed Pikabot reemerging with significant changes in its code base and structure.OpenAi is claiming that they have terminated accounts associated with state-affiliated threat actors.A January 2024 court-authorized operation has neutralized a network of hundreds of small office/home office (SOHO) routers that were used to commit crimes by the GRU Military Unit 26165.SecurityWeek is reporting on the fine folks at CISA who are urging the patching of a Cisco ASA flaw that is being used in ransomware.A document naming APT groups and operations can be found here.

Feb 21, 2024 • 53min
#103 - A better way forward for cybersecurity with Maxime Lamothe-Brassard, Founder & CEO of LimaCharlie
In this episode of The Cybersecurity Defenders Podcast, we delve into an innovative, engineering-centered perspective on cybersecurity with Maxime Lamothe-Brassard, the Founder & CEO of LimaCharlie.As part of the Canadian Intelligence apparatus, Maxime worked in positions ranging from development of cyber defence technologies, Counter Computer Network Exploitation, and Counter Intelligence. Maxime led the creation of an advanced cyber security program for the Canadian government and received several Director’s awards for his service.After leaving the government, Maxime provided direct help to private and public organizations in matters of cyber defence and worked for Crowdstrike, Google and Google X. Maxime left Google X - where he was a founding member of Chronicle Security - in 2018 to found LimaCharlie.

Feb 15, 2024 • 33min
#102 - Intel Chat: toothbrush DDOS, TPM-based encryption bypass & HijackLoader
In this episode of The Cybersecurity Defenders Podcast, we discuss some cutting-edge intel coming out of LimaCharlie's community Slack channel.The spectacular headline announcing a DDOS attack that involved 3-million electric toothbrushes.A hardware attack to bypass TPM-based encryption which is used on most Microsoft Windows devices.CrowdStrike researchers have identified a HijackLoader sample that employs sophisticated evasion techniques to enhance the complexity of the threat.

Feb 13, 2024 • 59min
#101 - WiFi attacks and defense with Lennart Koopmann, Founder of the Nzyme Network Defense System
In this episode of The Cybersecurity Defenders Podcast, we take a close look at WiFi attack methods, and the defenses to them, with Lennart Koopmann, Founder of the Nzyme Network Defense System.Lennart Koopman, a tech enthusiast originally from Germany, now calling Houston, TX home. He began coding at a young age and chose to forgo formal education, diving straight into the world of computers after high school.Lennart's career path led him through various roles, from assisting in a hospital's IT helpdesk to web development and eventually joining a startup. In 2009, he launched the Graylog log management system as a side project, marking his entry into the tech scene.Currently, Lennart is focused on his latest endeavor: The nzyme Network Defense System, demonstrating his ongoing commitment to technological advancement.The WiFiPhisher Github account can be found here. Lennart’s talk at MSS CTRL (LINK) can be found here.The Nzyme Network Defense System website can be found here. Lennart can be found in Twitter/X here.

Feb 9, 2024 • 37min
#100 - A tale of two breaches: examining the AnyDesk & Cloudflare incidents
In this episode of The Cybersecurity Defenders Podcast, we take a close look at the AnyDesk and Cloudflare breaches that were both disclosed on February 2, 2024.AnyDesk, a prominent remote desktop software provider, disclosed a cyberattack late on February 2nd, causing the company to enforce strict security measures for nearly a week. Adversaries breached AnyDesk's systems, compromising vital assets such as source code and private code signing keys, and gaining unauthorized access to production systems.For more on AnyDesk's breach, see the following references:https://techcrunch.com/2024/02/05/remote-access-giant-anydesk-resets-passwords-and-revokes-certificates-after-hack/https://anydesk.com/en/public-statementhttps://www.infosecurity-magazine.com/news/anydesk-hit-cyberattack-customer/https://www.helpnetsecurity.com/2024/02/05/anydesk-hacked/https://thehackernews.com/2024/02/anydesk-hacked-popular-remote-desktop.htmlOn the other front, Cloudflare disclosed that a nation-state actor infiltrated their self-hosted Atlassian server on November 14, 2023, utilizing stolen access tokens and service account credentials from the Okta breach. The threat actor conducted reconnaissance activities from November 14th to 17th, gaining access to Cloudflare's internal wiki and bug database. Additional access attempts on November 20th and 21st indicated the actor's persistence, culminating in establishing continuous access through ScriptRunner for Jira on November 22nd. Finally, they tried, unsuccessfully, to access a console server that had access to a data center that Cloudflare had not yet put into production in São Paulo, Brazil.For more details on Cloudflare's breach, consult the following sources:https://www.csoonline.com/article/1303785/nation-state-actor-used-recent-okta-compromises-to-hack-into-cloudflare-systems.htmlhttps://www.techtarget.com/searchsecurity/news/366568694/Cloudflare-discloses-breach-related-to-stolen-Okta-datahttps://www.computing.co.uk/news/4170126/cloudflare-server-breached-suspected-sponsored-threat-actors


