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In many cases, Ebury operators could gain full access to large servers of ISPs and well-known hosting providers. "We have documented cases where the infrastructure of hosting providers was compromised by Ebury. In these cases, we have seen Ebury being deployed on servers rented out by those providers, with no warning to the lessees. This resulted in cases where the Ebury actors were able to compromise thousands of servers at once," says Marc-Etienne M. Léveillé, the ESET researcher who investigated Ebury for more than a decade.
A malware botnet called Ebury is estimated to have compromised 400,000 Linux servers since 2009, out of which more than 100,000 were still compromised as of late 2023. The findings come from...
A malware botnet known as 'Ebury' has infected almost 400,000 Linux servers since 2009, with roughly 100,000 still compromised as of late 2023. "While 400,000 is a massive number, it's important to mention that this is the number of compromises over the course of almost 15 years. Not all of those machines were compromised at the same time," explains ESET. "There is a constant churn of new servers being compromised while others are being cleaned up or decommissioned. The data at our disposal doesn't indicate when the attackers lost access to the systems, so it's difficult to know the size of the botnet at any specific point in time."
Threat actors behind the Akira ransomware group have extorted approximately $42 million in illicit proceeds after breaching the networks of more than 250 victims as of January 1, 2024. "Since...
Threat actors are exploiting unpatched Atlassian servers to deploy a Linux variant of Cerber (aka C3RB3R) ransomware. The attacks leverage CVE-2023-22518 (CVSS score: 9.1), a critical security...
Researchers have demonstrated the "First native Spectre v2 exploit" for a new speculative execution side-channel flaw that impacts Linux systems running on many modern Intel processors. Spectre V2 is a new variant of the original Spectre attack discovered by a team of researchers at the VUSec group from VU Amsterdam.
Cybersecurity researchers have disclosed what they say is the "first native Spectre v2 exploit" against the Linux kernel on Intel systems that could be exploited to read sensitive data from the...
A threat actor quietly spent the last two years integrating themself in the core team of maintainers of XZ Utils, a free software command-line data compressor widely used in Linux systems. The CVE-2024-3094 backdoor found in XZ Utils was implemented to interfere with authentication in SSHD, the OpenSSH server software that handles SSH connections.
Firmware security firm Binarly has released a free online scanner to detect Linux executables impacted by the XZ Utils supply chain attack, tracked as CVE-2024-3094. Late last month, Microsoft engineer Andres Freud discovered the backdoor in the latest version of the XZ Utils package while investigating unusually slow SSH logins on Debian Sid, a rolling release of the Linux distribution.
The malicious code inserted into the open-source library XZ Utils, a widely used package present in major Linux distributions, is also capable of facilitating remote code execution, a new analysis...