Threat intelligence

The Microsoft Threat Intelligence community is made up of world-class experts, security researchers, analysts, and threat hunters who analyze 100 trillion signals daily to discover threats and deliver timely and timely, relevant insight to protect customers. See our latest findings, insights, and guidance.

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March 31, 2022

5 min read

Microsoft protects against human-operated ransomware across the full attack chain in the 2022 MITRE Engenuity ATT&CK® Evaluations

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.
April 4, 2022

12 min read

SpringShell RCE vulnerability: Guidance for protecting against and detecting CVE-2022-22965

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.
April 5, 2022

6 min read

Microsoft 365 Defender demonstrates industry-leading protection in the 2022 MITRE Engenuity ATT&CK® Evaluations

For the fourth consecutive year, Microsoft 365 Defender demonstrated industry-leading protection in MITRE Engenuity’s independent ATT&CK® Enterprise Evaluations.
April 12, 2022

7 min read

Tarrask malware uses scheduled tasks for defense evasion

Microsoft Detection and Response Team (DART) researchers have uncovered malware that creates “hidden” scheduled tasks as a defense evasion technique.
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April 13, 2022

17 min read

Dismantling ZLoader: How malicious ads led to disabled security tools and ransomware

Microsoft took action against the ZLoader trojan by working with telecommunications providers around the world to disrupt key ZLoader infrastructure.
April 26, 2022

9 min read

Microsoft finds new elevation of privilege Linux vulnerability, Nimbuspwn

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.
May 9, 2022

37 min read

Ransomware as a service: Understanding the cybercrime gig economy and how to protect yourself

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.
May 11, 2022

5 min read

Center for Threat-Informed Defense, Microsoft, and industry partners streamline MITRE ATT&CK® matrix evaluation for defenders

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.
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May 17, 2022

14 min read

In hot pursuit of ‘cryware’: Defending hot wallets from attacks

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.
May 19, 2022

27 min read

Rise in XorDdos: A deeper look at the stealthy DDoS malware targeting Linux devices

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.
May 23, 2022

10 min read

Beneath the surface: Uncovering the shift in web skimming

Web skimming campaigns now employ various obfuscation techniques to deliver and hide the skimming scripts.
May 23, 2022

8 min read

Anatomy of a DDoS amplification attack

Amplification attacks are one of the most common distributed denial of service (DDoS) attack vectors.