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Google’s Threat Analysis Group (TAG) recently discovered usage of an unpatched security bypass in Microsoft’s SmartScreen security feature, which financially motivated actors are using to deliver the Magniber ransomware without any security warnings. The attackers are delivering MSI files signed Read More …
Microsoft has patched another zero-day bug used by attackers to circumvent the Windows SmartScreen cloud-based anti-malware service and deploy Magniber ransomware payloads without raising any red flags. The attackers have been using malicious MSI files signed with a specially crafted Read More …
Symantec, by Broadcom Software, has observed a new malware that abuses a feature of Microsoft’s Internet Information Services (IIS) to deploy a backdoor onto targeted systems. The malware, dubbed Frebniis (Backdoor.Frebniis), was used by a currently unknown threat actor against Read More …
The Kinsing malware is now actively breaching Kubernetes clusters by leveraging known weaknesses in container images and misconfigured, exposed PostgreSQL containers. While these tactics aren’t novel, Microsoft’s Defender for Cloud team reports they have seen an uptick lately, indicating that Read More …
At the end of September, GTSC reported an attack on critical infrastructure that took place in August. During the investigation, experts found that two 0-day vulnerabilities in Microsoft Exchange Server were used in the attack. The first one, later identified Read More …
Microsoft has released security updates to address two high-severity Microsoft Exchange zero-day vulnerabilities collectively known as ProxyNotShell and exploited in the wild. Attackers have been chaining the two security flaws to deploy Chinese Chopper web shells on compromised servers for Read More …
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 Read More …
Microsoft has confirmed one of its own misconfigured cloud systems led to customer information being exposed to the internet, though it disputes the extent of the leak. In a revelation this week, Microsoft’s Security Response Center (MSRC) said it was Read More …
Microsoft Office 365 Message Encryption claims to offer a way “to send and receive encrypted email messages between people inside and outside your organization.” And according to WithSecure, it’s not fit for purpose: the encryption method employed, known as Electronic Read More …
Cisco Talos has discovered a new single-file command and control (C2) framework the authors call “Alchimist [sic].” Talos researchers found this C2 on a server that had a file listing active on the root directory along with a set of Read More …
