Tag Archive for: Master

A Master Class on IT Security: Roger Grimes Teaches Ransomware MitigationWebinar.

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Anti-Phishing, DMARC
,
Business Email Compromise (BEC)
,
Fraud Management & Cybercrime

Presented by
KnowBe4

    60 minutes    

Live | A Master Class on IT Security: Roger Grimes Teaches Ransomware Mitigation

Cyber-criminals have become thoughtful about ransomware attacks; taking time to maximize your organization’s potential damage and their payoff. Protecting your network from this growing threat is more important than ever. And nobody knows this more than Roger Grimes, Data-Driven Defense Evangelist at KnowBe4.

With 30+ years’ experience as a computer security consultant, instructor, and award-winning author, Roger has dedicated his life to making sure you’re prepared to defend against quickly evolving IT security threats like ransomware.

Register for this Masterclass with Roger to learn what you can do to prevent, detect, and mitigate ransomware.

Register for this session and learn:

  • How to detect ransomware programs, even those that are highly stealthy

  • Official recommendations from the Cybersecurity & Infrastructure Security Agency (CISA)

  • The policies, technical controls, and education you need to stop ransomware in its tracks

  • Why good backups (even offline backups) no longer save you from ransomware

You can learn how to identify and stop these attacks before they wreak havoc on your network.

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Master Key for Hive Ransomware Retrieved Using a Flaw in its Encryption Algorithm

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Hive Ransomware Master Key

Researchers have detailed what they call the “first successful attempt” at decrypting data infected with Hive ransomware without relying on the private key used to lock access to the content.

“We were able to recover the master key for generating the file encryption key without the attacker’s private key, by using a cryptographic vulnerability identified through analysis,” a group of academics from South Korea’s Kookmin University said in a new paper analyzing its encryption process.

Hive, like other cybercriminals groups, operates a ransomware-as-a-service that uses different mechanisms to compromise business networks, exfiltrate data, and encrypt data on the networks, and attempt to collect a ransom in exchange for access to the decryption software.

Automatic GitHub Backups

It was first observed in June 2021, when it struck a company called Altus Group. Hive leverages a variety of initial compromise methods, including vulnerable RDP servers, compromised VPN credentials, as well as phishing emails with malicious attachments.

The group also practices the increasingly lucrative scheme of double extortion, wherein the actors go beyond just encryption by also exfiltrating sensitive victim data and threatening to leak the information on their Tor site, “HiveLeaks.”

Hive Ransomware Master Key

As of October 16, 2021, the Hive RaaS program has victimized at least 355 companies, with the group securing the eighth spot among the top 10 ransomware strains by revenue in 2021, according to blockchain analytics company Chainalysis.

The malicious activities associated with the group have also prompted the U.S. Federal Bureau of Investigation (FBI) to release a Flash report detailing the attacks’ modus operandi, noting how the ransomware terminates processes related to backups, anti-virus, and file copying to facilitate encryption.

The cryptographic vulnerability identified by the researchers concerns the mechanism by which the master keys are generated and stored, with the ransomware strain only encrypting select portions of the file as opposed to the entire contents using two keystreams derived from the master key.

Prevent Data Breaches

“For each file encryption process, two keystreams from the master key are needed,” the researchers explained. “Two keystreams…

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Master The World Of Ethical Hacking With This Info-Packed Training Bundle

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News Highlights: Master The World Of Ethical Hacking With This Info-Packed Training Bundle.

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2020 has put us all to the test, but now we all have a fresh start in 2021. If you are one of the many who lost their jobs last year, it may be time to think about changing careers. And if you’re interested in a lucrative field that just keeps growing, the world of cybersecurity might be a perfect match.

Even if you are new to cybersecurity, it is possible to teach yourself the basics and make yourself an attractive candidate for potential employers. And you can do all of that without enrolling in an expensive university. You can even do it from the comfort of your home at any time that best suits your schedule thanks to the online courses in The All-In-One 2021 Super-Sized Ethical Hacking Bundle.

Thanks to the All-In-One 2021 Super-Sized Ethical Hacking Bundle, you get access to a whopping 18 courses taught by some of the best cybersecurity instructors in the industry. These classes take your ethical hacking experience to the next level, from Python 3 to Complete NMAP, and you can go at your own pace. And while all 18 of these courses would cost $ 3,284 individually, they are now available at an astounding 98 percent discount for just $ 42.99.

Get your ethical hacking skills in order with 18 info pack courses covering everything from Python 3 to Complete NMAP. You will receive instruction from highly regarded teachers such as Aleksa Tamburkovski, an ethical hacker with more than 5 years of personal experience and a 4.6 out of 5 stars as an instructor. OAK Academy delivers other courses, with the help of technical experts who have been in the industry for many years and specialize in areas such as cybersecurity, coding and more.

You will also learn from IT Security Academy, which employs certified experts in the field and has collected a 4.1 out of 5-star rating for instructors, and Gabril Avramescu, a senior information security advisor and IT trainer with an impressive resume. Finally, Atul Tiwari, an ethical hacker, security evangelist and penetration tester with a rating of 4.2 out of 5…

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12k+ Android apps contain master passwords, secret access keys, secret commands – ZDNet

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12k+ Android apps contain master passwords, secret access keys, secret commands  ZDNet
“android security news” – read more