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:
- Russian govt hackers hit Ukraine with Cobalt Strike, CredoMap malware
June 21, 2022
The Ukrainian Computer Emergency Response Team (CERT) is warning that Russian hacking groups are exploiting the Follina code execution vulnerability in new phishing campaigns to install the CredoMap malware and Cobalt Strike beacons. The APT28 hacking group is believed to be sending emails containing a malicious document name “Nuclear Terrorism A Very Real Threat.rtf.”. The threat ...
- Magecart attacks are still around. And they are becoming more stealthy
June 21, 2022
Magecart attacks are decreasing in number but are becoming more stealthy, with researchers highlighting potential server-side blindspots in tracking them. It’s not too often you hear about Magecart attacks. In the past few years, cybersecurity incidents that hit the headlines tended to involve attacks on core utilities and critical services, state-sponsored campaigns, ransomware, massive data breaches, ...
- Avos ransomware group expands with new attack arsenal
June 21, 2022
Avos is a ransomware group first identified in 2021 initially targeting Windows machines. More recently, a new ransomware variant of AvosLocker, named after the group, is also targeting Linux environments. Well-funded and financially motivated, Avos has been active since June 2021 and follows the ransomware-as-a-service (RaaS) model, an affiliate program to recruit potential partners. The announcement ...
- Microsoft 365 credentials targeted in new fake voicemail campaign
June 20, 2022
A new phishing campaign has been targeting U.S. organizations in the military, security software, manufacturing supply chain, healthcare and pharmaceutical sectors to steal Microsoft Office 365 and Outlook credentials. The operation is ongoing and the threat actor behind it uses fake voicemail notifications to lure victims into opening a malicious HTML attachment. According to researchers at cloud ...
- Android-wiping BRATA malware is evolving into a persistent threat
June 19, 2022
The threat actor behind BRATA banking trojan has evolved their tactics and improved the malware with information-stealing capabilities. Italian mobile security company Cleafy has been tracking BRATA activity and noticed in the most recent campaigns changes that lead to longer persistence on the device. “The modus operandi now fits into an Advanced Persistent Threat (APT) activity pattern,” ...
- QNAP ‘thoroughly investigating’ new DeadBolt ransomware attacks
June 17, 2022
Network-attached storage (NAS) vendor QNAP once again warned customers on Friday to secure their devices against a new campaign of attacks pushing DeadBolt ransomware. The company is urging users to update their NAS devices to the latest firmware version and ensure they’re not exposed to remote access over the Internet. “QNAP recently detected a new DeadBolt ransomware ...

