Security News

The Kimsuky (aka Springtail) advanced persistent threat (APT) group, which is linked to North Korea's Reconnaissance General Bureau (RGB), has been observed deploying a Linux version of its GoBear...

The North Korean hacker group Kimsuki has been using a new Linux malware called Gomir that is a version of the GoBear backdoor delivered via trojanized software installers. In early February 2024, researchers at the SW2 threat intelligence company reported about a campaign where Kimsuky used trojanized versions of various software solutions, e.g. TrustPKI and NX PRNMAN from SGA Solutions, Wizvera VeraPort, to infect South Korean targets with Troll Stealer and the Go-based Windows malware GoBear.

The North Korean hacker group Kimsuki has been using trojanized software packages to deliver a new Linux malware called Gomir in cyberespionage campaigns against targets in South Korea. In early February 2024, researchers at the SW2 threat intelligence company reported about a campaign where Kimsuky used trojanized versions of various software solutions, e.g. TrustPKI and NX PRNMAN from SGA Solutions, Wizvera VeraPort, to infect targets with the Troll Stealer variant of the Go-based Windows malware GoBear.

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...