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:
- Chaotic Eclipse strikes again with another worrying Windows security flaw
May 18, 2026
Threat actors could escalate privileges and gain SYSTEM access on a fully patched Windows 11 device thanks to an unpatched vulnerability which allegedly should have been fixed years ago, new reports have claimed. A researcher with the alias Chaotic Eclipse recently disclosed a Proof-of-Concept (PoC) exploit for a zero-day vulnerability they named “MiniPlasma”. In a new GitHub entry, ...
- NYC Health + Hospitals says hackers stole medical data affecting at least 1.8m people
May 18, 2026
New York public health provider NYC Health + Hospitals says a months-long data breach that allowed hackers to steal personal data, medical records, and fingerprints scans affects at least 1.8 million people. NYCHHC is the largest public health system in the United States and provides healthcare to over a million New Yorkers, the majority of whom are uninsured or ...
- Scammers are targeting World Cup fans
May 16, 2026
We’re less than a month away from the biggest sporting event of the year, the FIFA World Cup, and scammers are already busy stealing money, passwords, and other sensitive data from fans and visitors, experts have warned. Kaspersky has published a breakdown of the different scam techniques cybercriminals are using to target football fans as they ...
- Patch time for Cisco SD-WAN admins as vendor drops yet another make-me-admin zero-day
May 15, 2026
Cisco admins face emergency patch duty after Switchzilla disclosed a max-severity make-me-admin bug affecting Catalyst SD-WAN Controller and Manager. Switchzilla dropped an advisory for CVE-2026-20182 (10.0) on Thursday, saying that both components, formerly known as vSmart and vManage, were vulnerable in all deployment types, and that fixes were available. The bug allows unauthenticated remote attackers to bypass authentication and ...
- Hackers have breached tank readers at US gas stations
May 15, 2026
US officials suspect Iranian hackers are behind a series of breaches of systems that monitor the amount of fuel in storage tanks serving gas stations in multiple states, according to multiple sources briefed on the activity. The hackers responsible have exploited automatic tank gauge (ATG) systems that were sitting online and unprotected by passwords, allowing them in some cases ...
- ShinyHunters: Cyber Criminal Group Attacks Learning Management System
May 15, 2026
The Federal Bureau of Investigation (FBI) is providing this Public Service Announcement (PSA) to warn of potential future impacts related to a cyber-attack that affected an online Learning Management System (LMS), resulting in an interruption of service to educational institutions and students across the country. The LMS platform is now fully operational. ShinyHunters (SH) — which ...