A malware campaign was recently detected in Brazil, distributing a malicious LNK file using WhatsApp. It targets mainly Brazilians and uses Portuguese-named URLs.
To evade detection, the command-and-control (C2) server verifies each download to ensure it originates from the malware itself. The whole infection chain is complex and fully fileless, and by the end, it will deliver a new banking Trojan named Maverick, which contains many code overlaps with Coyote. In this blog post, we detail the entire infection chain, encryption algorithm, and its targets, as well as discuss the similarities with known threats.
Read more…
Source: Kaspersky
Sign up for the Cyber Security Review Newsletter
The latest cyber security news and insights delivered right to your inbox
Related:
- IT threat evolution Q3 2021
November 26, 2021
Last March, Kaspersky researchers reported a WildPressure campaign targeting industrial-related entities in the Middle East. While tracking this threat actor in spring 2021, they discovered a newer version. It contains the C++ Milum Trojan, a corresponding VBScript variant and a set of modules that include an orchestrator and three plugins. This confirms Kaspersky previous assumption ...
- BazarLoader Adds Compromised Installers, ISO to Arrival and Delivery Vectors
November 25, 2021
We continue monitoring the campaigns using information stealer BazarLoader (detected by Trend Micro as TrojanSpy.Win64.BAZARLOADER, TrojanSpy.Win64.BAZARLOADER, and Backdoor.Win64.BAZARLOADER). While InfoSec forums have noted the spike in detections during the third quarter, we noticed two new arrival mechanisms included in the existing roster of delivery techniques that malicious actors abused for data theft and ransomware. One of ...
- GoDaddy’s Latest Breach Affects 1.2M Customers
November 22, 2021
Web-hosting giant GoDaddy has confirmed another data breach, this time affecting at least 1.2 million of its customers. On Monday, the world’s largest domain registrar said in a public filing to the SEC that an “unauthorized third party” managed to infiltrate its systems on Sept. 6 – and that the person(s) had continued access for almost ...
- Android malware BrazKing returns as a stealthier banking trojan
November 18, 2021
The BrazKing Android banking trojan has returned with dynamic banking overlays and a new implementation trick that enables it to operate without requesting risky permissions. A new malware sample was analyzed by IBM Trusteer researchers who found it outside the Play Store, on sites where people end up after receiving smishing (SMS) messages. These HTTPS sites warn ...
- UK and US join forces to strike back in cyber-space
November 18, 2021
The US and UK are joining forces to “impose consequences” on their shared adversaries who conduct malicious cyber-activities. The combined action would address “evolving threats with a full range of capabilities”, they said. The shared adversaries were not named but the announcement follows increasing concern over Russia-based ransomware. Read more… Source: BBC News
- Hackers deploy Linux malware, web skimmer on e-commerce servers
November 18, 2021
Security researchers discovered that attackers are also deploying a Linux backdoor on compromised e-commerce servers after injecting a credit card skimmer into online shops’ websites. The PHP-coded web skimmer (a script designed to steal and exfiltrate customers’ payment and personal info) is added and camouflaged as a .JPG image file in the /app/design/frontend/ folder. The attackers use ...