Self-destructing Mistic backdoor linked to access broker selling corporate footholds to ransomware gangs


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:

  • WestJet investigating possible cyberattack

    June 16, 2025

    WestJet has apparently suffered a cyberattack which has disrupted some of its services, including impacting the airline’s website and mobile app. The company confirmed the news in a security advisory posted on its website, noting, “WestJet is aware of a cybersecurity incident involving internal systems and the WestJet app, which has restricted access for several users.” ...

  • Hackers take aim at Washington Post journalists in an apparent ‘targeted’ cyberattack

    June 15, 2025

    Hackers have tried to break into the email accounts of a select number of Washington Post journalists, according to an internal Washington Post memo obtained by CNN. The Post discovered the “possible targeted” hack of its email system last Thursday, prompting the newspaper to reset login credentials for all its employees on Friday, Washington Post Executive ...

  • Anubis: A Closer Look at an Emerging Ransomware with Built-in Wiper

    June 13, 2025

    A new ransomware-as-a-service (RaaS) group has emerged and has been making a name for itself in 2025. Anubis is a recently identified group that sets itself apart by partnering encryption with more destructive capabilities—wiping directories which severely impact chances of file recovery. Given its brief history and use of a multi-layered extortion model, Anubis has all ...

  • Mitel Releases Security Advisory for MiCollab

    June 13, 2025

    Mitel has released a security advisory to address a critical severity vulnerability in Mitel MiCollab. MiCollab is a cloud-based platform that integrates chat, voice, video, and SMS messaging for teams. The vulnerability, which has no CVE identifier at time of publish, is a “path traversal” vulnerability with a CVSSv3 score of 9.8. Successful exploitation could allow ...

  • Apple fixes new iPhone zero-day bug used in Paragon spyware hacks

    June 12, 2025

    Researchers revealed on Thursday that two European journalists had their iPhones hacked with spyware made by Paragon. Apple says it has fixed the bug that was used to hack their phones. The Citizen Lab wrote in its report, shared with TechCrunch ahead of its publication, that Apple had told its researchers that the flaw exploited in ...

  • MyCert: Malaysia data breaches up 29% in Q1 2025

    June 11, 2025

    The Malaysia Computer Emergency Response Team (MyCert) reported an increase in data breach incidents in Malaysia in the first quarter of the year. “Data breach incidents are growing in Malaysia with a nearly 29% increase this quarter, underscoring the need for better security measures to ensure national security and public trust,” said MyCert. According to its ...