Category Archives: WannaCry

How Morris Worm Command and Control Changed Cybersecurity

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A successful cyberattack requires more than just gaining entry into a victim’s network. To truly reap the rewards, attackers must maintain a persistent presence within the system. After establishing communication with other compromised network devices, actors can stealthily extract valuable data. The key to all this is a well-developed Command and Control (C2 or C&C) […]

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Why did the WannaCry ransomware kill switch check whether it was within a virtual environment in this manner?

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I have been researching the Wannacry ransomware, and have seen an example of the kill switch within Ghidra. What baffles me is, why did they implement the kill switch as a web domain instead of any other alternative methods, or why impleme… Continue reading Why did the WannaCry ransomware kill switch check whether it was within a virtual environment in this manner?→

Exposing a Currently Active WannaCry Ransomware Domains Portfolio – An OSINT Analysis – A PDF Paper

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Worms of Wisdom: How WannaCry Shapes Cybersecurity Today

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WannaCry wasn’t a particularly complex or innovative ransomware attack. What made it unique, however, was its rapid spread. Using the EternalBlue exploit, malware could quickly move from device to device, leveraging a flaw in the Microsoft Windows Server Message Block (SMB) protocol.  As a result, when the WannaCry “ransomworm” hit networks in 2017, it expanded […]

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Advanced threat predictions for 2023

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We polled our experts from the GReAT team and have gathered a small number of key insights about what APT actors are likely to focus on in 2023. Continue reading Advanced threat predictions for 2023→

FBI, CISA, Treasury: North Korean hackers taking aim at health care with Maui ransomware

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The ransomware has previously received little public scrutiny.

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Where Everything Old is New Again: Operational Technology and Ghost of Malware Past

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This post was written with contributions from IBM Security’s Sameer Koranne and Elias Andre Carabaguiaz Gonzalez. Operational technology (OT) — the networks that control industrial control system processes — face a more complex challenge than their IT counterparts when it comes to updating operating systems and software to avoid known vulnerabilities. In some cases, implementation […]

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CISA to brief critical infrastructure companies about urgent new Log4j vulnerability

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The Department of Homeland Security’s Cybersecurity and Infrastructure Security Agency will host a call with critical infrastructure stakeholders Monday afternoon about a critical vulnerability affecting products with the Log4j software library, according to a statement. CISA sent out an alert Friday that the agency had added the flaw to its list of exploited vulnerabilities, and urged federal and civilian organizations to patch and take steps to mitigate harm immediately. Log4j is a widely-used open-source logging tool popular in numerous cloud and enterprise apps including Minecraft, Apple Cloud, Cloudflare and Twitter, making the extent of the zero-day’s potential damage likely wide-reaching. “CISA is working closely with our public and private sector partners to proactively address a critical vulnerability affecting products containing the log4j software library,” CISA director Jen Easterly said in a statement. “This vulnerability, which is being widely exploited by a growing set of threat actors, presents an urgent challenge to network defenders given its broad use.” Cybersecurity researchers noted over the weekend that […]

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Whitehat hacker shows how to detect hidden cameras in Airbnb, hotels

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By Waqas
A whitehat hacker has shared simple yet useful tips on his TikTok detailing how you can detect hidden cameras in an Airbnb or a hotel room.
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