Web skimming campaigns now employ various obfuscation techniques to deliver and hide the skimming scripts. It’s a shift from earlier tactics where attackers conspicuously injected the malicious scripts into e-commerce platforms and content management systems (CMSs) via vulnerability exploitation, making this threat highly evasive to traditional security solutions.
Observing a 254% increase in activity over the last six months from a versatile Linux trojan called XorDdos, the Microsoft 365 Defender research team provides in-depth analysis into this stealthy malware’s capabilities and key infection signs.
The rise in cryptocurrency market capitalization paved the way to the emergence of threats Microsoft security researchers are referring to as “cryware”—information stealers focused on gathering and exfiltrating data from non-custodial cryptocurrency wallets.
The Center for Threat-Informed Defense, along with Microsoft and industry partners, collaborated on a repeatable methodology and a web-based calculator, aiming to streamline MITRE ATT&CK® use for defenders.
Microsoft coined the term “human-operated ransomware” to clearly define a class of attack driven by expert human intelligence at every step of the attack chain and culminate in intentional business disruption and extortion.
Microsoft has discovered several vulnerabilities, collectively referred to as Nimbuspwn, that could be chained together, allowing an attacker to elevate privileges to root on many Linux desktop endpoints.
Microsoft took action against the ZLoader trojan by working with telecommunications providers around the world to disrupt key ZLoader infrastructure. In this blog, we detail the various characteristics for identifying ZLoader activity, including its associated tactics, recent campaigns, and affiliated payloads, such as ransomware.
Microsoft Detection and Response Team (DART) researchers have uncovered malware that creates “hidden” scheduled tasks as a defense evasion technique. In this post, we will demonstrate how threat actors create scheduled tasks, how they cover their tracks, and how the malware’s evasion techniques are used to maintain and ensure persistence on systems.
For the fourth consecutive year, Microsoft 365 Defender demonstrated industry-leading protection in MITRE Engenuity’s independent ATT&CK® Enterprise Evaluations. These results highlighted the importance of taking an XDR-based approach spanning endpoints, identities, email and cloud, and the importance of both prevention and protection.
Microsoft provides guidance for customers looking for protection against exploitation and ways to detect vulnerable installations on their network of the critical vulnerability CVE-2022-22965, also known as SpringShell or Spring4Shell.
For the fourth year in a row, the independent MITRE Engenuity ATT&CK® Evaluations demonstrated that threats are no match for Microsoft’s multi-platform extended detection and response (XDR) defense capabilities.
The activity we have observed has been attributed to a threat group that Microsoft tracks as DEV-0537, also known as LAPSUS$. DEV-0537 is known for using a pure extortion and destruction model without deploying ransomware payloads.
