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:
- Northern Ireland: Major data breach identifies thousands of police officers and civilian staff
August 8, 2023
The Police Service of Northern Ireland (PSNI) has apologised for mistakenly revealing details of all its 10,000 staff. NI’s Police Federation said the breach could cause “incalculable damage”. In response to a Freedom of Information (FoI) request, the PSNI had shared names of all police and civilian personnel, where they were based and their roles. The ...
- UK Elections watchdog targeted by cyber attack which left voters’ details exposed
August 8, 2023
Details of tens of millions of voters could have been accessed by hackers who targeted the elections watchdog. The Electoral Commission revealed on Tuesday it was targeted by a cyber attack which allowed “hostile actors” to access electoral registers. The hack allowed the attackers to access reference copies of electoral registers which contained the name and addresses ...
- Clustering attacker behavior reveals hidden patterns
August 8, 2023
A collection of very specific behaviors, observed by Sophos X-Ops incident response analysts in the lead-up to four separate ransomware attacks in the first quarter of 2023, indicates an unexpected connection between the attacks. In the parlance of the Managed Detection and Response (MDR) team, the peculiarly similar details constitute a threat activity cluster that ...
- New cyberattack method: tracking typing remotely via keyboard sounds
August 7, 2023
A group of British cybersecurity researchers has figured out a novel new attack method: recording the sound a computer keyboard makes. The researcher took recordings using a nearby smartphone of typists and used it to train a sound classification model, achieving accuracies of 95% to suss out the actual keys pressed. They call this an acoustic side ...
- Ukraine-Linked Group Claims It Hacked Website Of Moscow Property Registration Bureau
August 7, 2023
A Ukraine-linked hacker group said on Telegram on August 7 that it had hacked the website of Moscow’s municipal property registration bureau (MosgorBTI) overnight, saying “the information about state officials, politicians, military, and special services officers who support the Ukraine war had been handed to Ukraine’s defense forces.” The MosgorBTI’s website has yet to comment on ...
- Cyberattack disrupted hospitals, health care in Pennsylvania, 4 other states
August 6, 2023
Hospitals and clinics in several states on Friday began the time-consuming process of recovering from a cyberattack that disrupted their computer systems, forcing some emergency rooms to shut down and ambulances to be diverted. Many primary care services at facilities run by Prospect Medical Holdings remained closed on Friday as security experts worked to determine the ...

