Back in October 2022, Kaspersky GReAT was looking into a peculiar advertisement on a hacking forum. A cybercriminal had been advertising a UEFI bootkit, dubbed BlackLotus, that could bypass Secure Boot, for $5,000. Given the low price for such powerful capabilities, the cybersecurity community initially took this advertisement with a grain of salt. As no BlackLotus samples were found in the wild, no one could at the time verify the claims made in the forum post.
However, about half a year later, in March 2023, ESET confirmed that the BlackLotus advertisement was genuine. The researchers tracked down samples of this bootkit and confirmed that it can indeed bypass Secure Boot through a vulnerability called Baton Drop (CVE-2022-21894). As this vulnerability was still exploitable in 2023, Microsoft had to release multiple security updates to address it.
Read more…
Source: Kaspersky
Sign up for the Cyber Security Review Newsletter
The latest cyber security news and insights delivered right to your inbox
Related:
- New Android malware targeting banks in Italy, Spain, Germany, Belgium, and the Netherlands
May 11, 2021
A new Android trojan has been identified by security researchers, who said on Monday that once it is successfully installed in the victim’s device, those behind it can obtain a live stream of the device screen and also interact with it via its Accessibility Services. The malware, dubbed “Teabot” by security researchers with Cleafy, has been ...
- DDoS attacks in Q1 2021
May 10, 2021
Q1 2021 saw the appearance of two new botnets. News broke in January of the FreakOut malware, which attacks Linux devices. Cybercriminals exploited several critical vulnerabilities in programs installed on victim devices, including the newly discovered CVE-2021-3007. Botnet operators use infected devices to carry out DDoS attacks or mine cryptocurrency. Another active bot focused on Android devices with the ADB ...
- Tips to avoid the new wave of ransomware attacks
May 10, 2021
There have been a lot of changes in ransomware over time. We want to help you protect your organization from this growing attack trend. The Colonial Pipeline ransomware attack is just part of a new onslaught of ransomware attacks that malicious actors are ramping up against high value victims. Why are we seeing this? These malicious actors ...
- US and Australia warn of escalating Avaddon ransomware attacks
May 10, 2021
The Federal Bureau of Investigation (FBI) and the Australian Cyber Security Centre (ACSC) are warning of an ongoing Avaddon ransomware campaign targeting organizations from an extensive array of sectors in the US and worldwide. The FBI said in a TLP:GREEN flash alert last week that Avaddon ransomware affiliates are trying to breach the networks of manufacturing, ...
- DarkSide ransomware will now vet targets after pipeline cyberattack
May 10, 2021
The DarkSide ransomware gang posted a new “press release” today stating that they are apolitical and will vet all targets before they are attacked. Last week, the ransomware gang encrypted the network for the Colonial Pipeline, the largest fuel pipeline in the United States. Read more… Source: Bleeping Computer Related story: Colonial Pipeline cyberattack shuts down pipeline that supplies ...
- Lemon Duck hacking group adopts Microsoft Exchange Server vulnerabilities in new attacks
May 10, 2021
Researchers have explored the latest activities of the Lemon Duck hacking group, including the leverage of Microsoft Exchange Server vulnerabilities and the use of decoy top-level domains. The active exploit of zero-day Microsoft Exchange Server vulnerabilities in the wild was a security disaster for thousands of organizations. Four critical flaws, dubbed ProxyLogon, impact on-prem Microsoft Exchange Server ...