VMDetector-Based Loader Abuses Steganography to Deliver Infostealers


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:

  • 85 cyber attacks on Việt Nam’s sites, portals last week

    August 30, 2024

    A total of 85 cases of cyber attacks on Việt Nam’s websites and information portals were reported in the past week, according to the Authority of Information Security (under the Ministry of Information and Communications). Seventy four were phishing attacks and eleven were malware installations. According to the information security authority, attackers have been using malicious ...

  • #StopRansomware: RansomHub Ransomware

    August 29, 2024

    The Federal Bureau of Investigation (FBI) and partners are releasing this joint advisory to disseminate known RansomHub ransomware IOCs and TTPs. These have been identified through FBI threat response activities and third-party reporting as recently as August 2024. RansomHub is a ransomware-as-a-service variant—formerly known as Cyclops and Knight—that has established itself as an efficient and successful ...

  • Fake Canva home page leads to browser lock

    August 29, 2024

    In a previous blog post, Malwarebytes researchers showed how fraudsters were leveraging features from the very company (Microsoft) they were impersonating. Malwarebytes Labs continue this series with another clever trick abusing Canva, a popular online tool for graphic design. This time, the scammers registered an account on Canva to create a new design that, is in ...

  • Preparing for Unknown Risks: How to Better Prepare for Risks You Can’t See Yet

    August 29, 2024

    As security professionals we’re used to dealing with unknowns and unpredictability. We understand that it’s impossible to always know what’s around the corner. It’s not just about external threats and the big breaches splashed across the news headlines. On one hand, we’re combating threat actors attempting to steal information, money or simply trying to cause havoc. ...

  • State-backed attackers and commercial surveillance vendors repeatedly use the same exploits

    August 29, 2024

    Google’s Threat Analysis Group (TAG) observed multiple in-the-wild exploit campaigns, between November 2023 and July 2024, delivered from a watering hole attack on Mongolian government websites. The campaigns first delivered an iOS WebKit exploit affecting iOS versions older than 16.6.1 and then later, a Chrome exploit chain against Android users running versions from m121 to m123. ...

  • Spain’s Alcampo Acts Quickly To Mitigate Impact Of Cyber Attack

    August 29, 2024

    Spanish retailer Alcampo has reportedly suffered a cyber attack, however the group told local media that it acted quickly to mitigate its effects. The retailer experienced the cyber attack between Sunday 25 August and Monday 26 August, according to media reports, and upon discovery of the incident, engaged data protection experts to implement the necessary technical, ...