A new self-destructing backdoor called Mistic used in intrusions since April appears to be linked to a criminal gang that compromises corporate networks and then sells that access to ransomware groups, according to security researchers.
This backdoor, also tracked as MLTBackdoor, was first documented by Zscaler earlier this month, with the security shop suggesting the novel malware is “likely used in ransomware attacks to establish a foothold for lateral movement.”
Read more…
Source:
Sign up for the Cyber Security Review Newsletter
The latest cyber security news and insights delivered right to your inbox
Related:
- The Espionage Toolkit of Earth Alux: A Closer Look at its Advanced Techniques
March 31, 2025
The Earth Alux APT group’s schemes and tactics have been uncloaked through our relentless monitoring and investigation efforts. The China-linked intrusion set is actively launching cyberespionage attacks against the government, technology, logistics, manufacturing, telecommunications, IT services, and retail sectors. The first sighting of its activity was in the second quarter of 2023; back then, it was ...
- Oracle grapples with dual data breaches
March 31, 2025
Oracle is dealing with the fallout of a double data breach — one exposing patient data at US hospitals, and another raising concerns about its cloud security. Reports over the weekend suggest a breach at Oracle Health, formerly known as Cerner, has impacted multiple US healthcare organisations and hospitals. Threat actors are believed to have stolen ...
- A Deep Dive into Water Gamayun’s Arsenal and Infrastructure
March 28, 2025
Water Gamayun, a suspected Russian threat actor also known as EncryptHub and Larva-208, has been exploiting the MSC EvilTwin (CVE-2025-26633), a zero-day vulnerability that was patched on March 11. In the first installment of this two-part series, Trend Research discussed in depth its discovery of an Water Gamayun campaign exploiting this vulnerability. In this blog entry, ...
- Again and again, NSO Group’s customers keep getting their spyware operations caught
March 28, 2025
On Thursday, Amnesty International published a new report detailing attempted hacks against two Serbian journalists, allegedly carried out with NSO Group’s spyware Pegasus. The two journalists, who work for the Serbia-based Balkan Investigative Reporting Network (BIRN), received suspicious text messages including a link — basically a phishing attack, according to the nonprofit. In one case, Amnesty ...
- Mozilla Releases Security Updates for Firefox
March 28, 2025
Mozilla has released security updates to address one critical vulnerability in Firefox and Firefox ESR. Following the recent Chrome sandbox escape (CVE-2025-2783), various Firefox developers identified a similar pattern in Firefox’s Inter-process Communication (IPC) code. A compromised child process could cause the parent process to return an unintentionally powerful handle, leading to a sandbox escape. Exploitation ...
- Google Releases Security Updates for Chrome
March 28, 2025
Google has released Chrome version 134.0.6998.177/.178 to address a high severity vulnerability, reported as exploited in the wild. A remote attacker could exploit this vulnerability to escape a sandbox via a malicious file. Google is aware that an exploit for CVE-2025-2783 exists in the wild. Affected organisations are encouraged to review the Chrome Release 134.0.6998.177/.178 Stable ...

