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:
- Man Arrested for AWS Bomb Plot
April 12, 2021
A Texas man has been charged with plotting a bombing of Amazon Web Services in a quest to allegedly “kill off the internet.” Seth Aaron Pendley was arrested in Ft. Worth after allegedly attempting to get an explosive device from an undercover FBI employee in a sting. The feds were alerted to Pendley after a concerned ...
- Winter 2020 Network Attack Trends: Internet of Threats
April 12, 2021
Unit 42 researchers analyzed network attack trends over Winter 2020 and discovered many interesting exploits in the wild. During the period of Nov. 2020 to Jan. 2021, the majority of the attacks we observed were classified as critical (75%), compared to the 50.4% we reported in the fall of 2020. Several newly observed exploits, including ...
- Dutch supermarkets run out of cheese after ransomware attack
April 12, 2021
A ransomware attack against conditioned warehousing and transportation provider Bakker Logistiek has caused a cheese shortage in Dutch supermarkets. Bakker Logistiek is one of the largest logistics services providers in the Netherlands, offering air-conditioned warehousing and food transportation for Dutch supermarkets. Last week, Bakker Logistiek suffered a ransomware attack that encrypted devices on their network and disrupted ...
- New survey report released: The state of industrial cybersecurity (Part 3)
April 12, 2021
This is the final installation of our three-part blog series, explaining the state of industrial cybersecurity based on the result of survey Trend Micro conducted in the US, Germany and Japan in November 2021. Part 1: Converging IT and OT with people, process and technology Part 2: Most factories have already implemented technical measures but are still ...
- Critical security alert: If you haven’t patched old Fortinet VPN vulnerability, assume your network is compromised
April 12, 2021
Cyber criminals and nation-state cyber-espionage operations are actively scanning for unpatched vulnerabilities in Fortinet VPNs; organisations that use Fortigate firewalls on their network, and have yet to apply a critical security update released almost two years ago, should assume they’ve been compromised and act accordingly. The alert from the National Cyber Security Centre (NCSC) follows a ...
- IcedID Circulates Via Web Forms, Google URLs
April 12, 2021
Website contact forms and Google URLs are being used to spread the IcedID trojan, according to researchers at Microsoft. Attackers are using “contact us” forms on websites to send emails targeting organizations with trumped-up legal threats, researchers said. The messages consistently mention a copyright infringement by a photographer, illustrator or designer, and they contain a link ...