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:
- Weaponizing Trust Signals: Claude Code Lures and GitHub Release Payloads
April 3, 2026
In late March 2026open on a new tab, Anthropic inadvertently released the internal Claude Code source material as part of an npm package that included a large internal source map file. Although the incident stemmed from a simple packaging mistake, threat actors were quick to capitalize on the resulting attention. Only 24 hours after the ...
- vSphere and BRICKSTORM Malware: A Defender’s Guide
April 2, 2026
Building on recent BRICKSTORM research from Google Threat Intelligence Group (GTIG), this post explores the evolving threats facing virtualized environments. These operations directly target the VMware vSphere ecosystem, specifically the vCenter Server Appliance (VCSA) and ESXi hypervisors. To help organizations stay ahead of these risks, we will focus on the essential hardening strategies and mitigating controls ...
- Sophisticated supply chain attack exploited TrueConf update process
April 2, 2026
Southeast Asian governments were recently targeted by a highly sophisticated supply chain attack as part of a wider cyber-espionage campaign, which experts believe is the work of the Chinese government. Security researchers Check Point detailed their findings on Operation TrueChaos, a campaign revolving around a zero-day vulnerability in TrueConf, a video conferencing and collaboration platform which ...
- Gigabyte warns users Control Center flaw could let hackers hijack your files
April 1, 2026
GIGABYTE Control Center, a Windows utility which comes preloaded with certain computers, carried a critical-severity vulnerability that allowed malicious actors to access files, run code, and trigger denial-of-service conditions on affected devices. The bug has now been addressed and users are advised to patch up without delay. GIGABYTE is a major hardware manufacturer known for, among ...
- WhatsApp on Windows users targeted in new campaign
April 1, 2026
Microsoft researchers found a campaign that abuses WhatsApp attachments to sneak a script onto Windows machines which will lead to the attacker gaining remote control. WhatsApp offers a desktop application for Windows and macOS, which users can synchronize with their mobile devices. Desktop versions of WhatsApp are generally used as extensions of mobile apps rather than ...
- UK manufacturers under cyber fire with 80% reporting attacks
April 1, 2026
Nearly 80 percent of British manufacturers say they’ve been hit by a cyber incident in the past year, as new research suggests disruption on the factory floor is no longer an exception but business as usual. According to security outfit ESET, 78 percent of UK manufacturers admit to suffering at least one cyber incident in the ...

