Recently, the SonicWall Capture Labs threat research team has identified various malware strains being distributed through a custom VMDetector Loader. This loader is typically delivered to the victim’s system via image files embedded with steganography. The primary payloads observed include popular malware families such as Remcos, VIPKeyLogger, AveMariaRAT, DCRAT, FormBook, and others.
Attackers send an email with an archive file that includes either JavaScript, VBScript, or HTA content. The embedded scripts employ basic obfuscation through string replacement and base64 encoding, making them appear benign while evading straightforward detection.
Read more…
Source: Sonicwall
Sign up for our Newsletter
The latest news and insights delivered right to your inbox.
Related:
- US insurance giant CNA Financial paid $40 million ransom to regain control of systems: report
May 21, 2021
One of the largest insurance companies in the United States, CNA Financial, reportedly agreed to a $40 million payment to restore access to its systems following a ransomware attack. According to Bloomberg, the $40 million payment — which is $10 million more than the highest attempted demand of $30 million in 2020, already double the highest ...
- FBI: Conti Ransomware Attacks Impact Healthcare and First Responder Networks
May 20, 2021
The FBI identified at least 16 Conti ransomware attacks targeting US healthcare and first responder networks, including law enforcement agencies, emergency medical services, 9-1-1 dispatch centers, and municipalities within the last year. These healthcare and first responder networks are among the more than 400 organizations worldwide victimized by Conti, over 290 of which are located in the U.S. ...
- Microsoft: Massive malware campaign delivers fake ransomware
May 20, 2021
A massive malware campaign pushed the Java-based STRRAT remote access trojan (RAT), known for its data theft capabilities and the ability to fake ransomware attacks. In a series of tweets, the Microsoft Security Intelligence team outlined how this “massive email campaign” spread the fake ransomware payloads using compromised email accounts. Read more… Source: Bleeping Computer
- Healthcare organizations in Ireland, New Zealand and Canada facing intrusions and ransomware attacks
May 20, 2021
Three healthcare institutions in Canada, Ireland and New Zealand are in the midst of security incidents this week, highlighting the perilous cybersecurity landscape within some of the world’s most important organizations. Ireland’s Department of Health was attacked twice in the last week, eventually shutting down their entire IT system after a ransomware attack last Thursday. The ...
- BazarCall: Call Centers Help Spread BazarLoader Malware
May 19, 2021
BazarLoader (sometimes referred to as BazaLoader) is malware that provides backdoor access to an infected Windows host. After a client is infected, criminals use this backdoor access to send follow-up malware, scan the environment and exploit other vulnerable hosts on the network. The threat actor behind BazarLoader uses different methods to distribute this malware to potential ...
- Hackers scan for vulnerable devices minutes after bug disclosure
May 19, 2021
Every hour, a threat actor starts a new scan on the public web for vulnerable systems, moving at a quicker pace than global enterprises when trying to identify serious vulnerabilities on their networks. The adversaries’ efforts increase significantly when critical vulnerabilities emerge, with new internet-wide scans happening within minutes from the disclosure. Read more… Source: Bleeping Computer