From January through May 2026, Mandiant identified a financially motivated data theft extortion campaign executed by the threat cluster UNC3753 (also tracked as “Luna Moth,” “Chatty Spider,” and “Silent Ransom Group”) targeting dozens of organizations across professional, legal, and financial services in the United States.
UNC3753 leverages voice phishing (vishing) and social engineering deception techniques to achieve remote access into corporate environments. Using pretexts such as data migration or invoice related emails, the threat actors initiate phone conversations posing as IT support and convince targets to host screen-sharing sessions and download remote monitoring and management (RMM) utilities.
Read more…
Source: Mandiant
Sign up for the Cyber Security Review Newsletter
The latest cyber security news and insights delivered right to your inbox
Related:
- Maze ransomware now encrypts via virtual machines to evade detection
September 17, 2020
The Maze ransomware operators have adopted a tactic previously used by the Ragnar Locker gang; to encrypt a computer from within a virtual machine. In May, we previously reported that Ragnar Locker was seen encrypting files through VirtualBox Windows XP virtual machines to bypass security software on the host. The virtual machine would mount a host’s drives ...
- Mozi Botnet Accounts for Majority of IoT Traffic
September 17, 2020
The Mozi botnet, a peer-2-peer (P2P) malware known previously for taking over Netgear, D-Link and Huawei routers, has swollen in size to account for 90 percent of observed traffic flowing to and from all internet of things (IoT) devices, according to researchers. IBM X-Force noticed Mozi’s spike within it’s telemetry, amid a huge increase in overall ...
- Apple Bug Allows Code Execution on iPhone, iPad, iPod
September 17, 2020
Apple has updated its iOS and iPadOS operating systems, which addressed a wide range of flaws in its iPhone, iPad and iPod devices. The most severe of these could allow an adversary to exploit a privilege-escalation vulnerability against any of the devices and ultimately gain arbitrary code-execution. The bugs were made public Wednesday as part of ...
- Alert issued to UK universities and colleges about spike in cyber attacks
September 17, 2020
British universities and colleges have been warned about a spike in ransomware attacks targeting the education sector by the UK’s National Cyber Security Centre (NCSC), a part of GCHQ. Academic institutions are being urged to follow NCSC guidance following a sharp increase in attacks which have left some teachers fearing they won’t be able to accept ...
- “Zerologon” and the Value of Virtual Patching
September 16, 2020
A new CVE was released recently that has made quite a few headlines – CVE-2020-1472. Zerologon, as it’s called, may allow an attacker to take advantage of the cryptographic algorithm used in the Netlogon authentication process and impersonate the identity of any computer when trying to authenticate against the domain controller. To put that more simply, ...
- Cerberus banking Trojan source code released for free to cyberattackers
September 16, 2020
The source code of the Cerberus banking Trojan has been released as free malware on underground hacking forums following a failed auction. Speaking at Kaspersky NEXT 2020 on Wednesday, Kaspersky cybersecurity researcher Dmitry Galov said that the leaked code, distributed under the name Cerberus v2, presents an increased threat for smartphone users and the banking sector ...