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:
- Joint CISA FBI MS-ISAC Guide on Responding to DDoS Attacks and DDoS Guidance for Federal Agencies
October 28, 2022
The Cybersecurity and Infrastructure Security Agency (CISA), the Federal Bureau of Investigation (FBI), and the Multi-State Information Sharing and Analysis Center (MS-ISAC) are releasing this joint guide to provide organizations proactive steps to reduce the likelihood and impact of distributed denial-of-service (DDoS) attacks. These attacks can cost an organization time and money and may impose ...
- Defeating Guloader Anti-Analysis Technique
October 28, 2022
Unit 42 researchers recently discovered a Guloader variant that contains a shellcode payload protected by anti-analysis techniques, which are meant to slow human analysts and sandboxes processing this sample. To help speed analysis for this sample and others like it, we are providing a complete Python script to deobfuscate the Guloader sample that is available ...
- Manufacturing Cybersecurity: Trends & Survey Response
October 27, 2022
Trend Micro conducted a study on the state of industrial cybersecurity in the oil and gas, manufacturing, and electricity/energy industries in 2022. Based on the results of a survey of over 900 ICS business and security leaders in the United States, Germany, and Japan, we will discuss the characteristics of each industry, the motivations and ...
- Raspberry Robin worm part of larger ecosystem facilitating pre-ransomware activity
October 27, 2022
Microsoft has discovered recent activity indicating that the Raspberry Robin worm is part of a complex and interconnected malware ecosystem, with links to other malware families and alternate infection methods beyond its original USB drive spread. These infections lead to follow-on hands-on-keyboard attacks and human-operated ransomware activity. Microsoft continuous tracking of Raspberry Robin-related activity also ...
- Medibank now says hackers accessed all its customers’ personal data
October 27, 2022
Australian insurance firm Medibank has confirmed that hackers accessed all of its customers’ personal data and a large amount of health claims data during a recent ransomware attack. In an announcement published today, the companies warned that an internal investigation into the attack has shown that the threat actors had far greater access to customer data ...
- Feds accuse Ukrainian of renting out PC-raiding Raccoon malware to fiends
October 26, 2022
Mark Sokolovsky, 26, a Ukrainian national, is being held in the Netherlands while he awaits extradition to America on cybercrime charges, the US Justice Department said on Tuesday. Sokolovsky, said to have used the online names Photix, Raccoon Stealer, and black21jack77777, was indicted on November 2, 2021 by a federal grand jury for his alleged role ...