Anatomy of a DDoS amplification attack
Amplification attacks are one of the most common distributed denial of service (DDoS) attack vectors.
Cyberattacker techniques, tools, and infrastructure
Cyberattackers constantly evolve their techniques, tools, and infrastructure to launch increasingly complex attacks. Learn about the latest tactics and how to detect, disrupt, and defend against them.
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Modernize your Security Operations Center with Microsoft Sentinel
Microsoft Sentinel is a cloud-native SIEM solution powered by AI and automation that delivers intelligent security analytics across your entire enterprise.
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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. -
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. -
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. Tailored AI insights from Microsoft Security Copilot
Empower your defenders to detect hidden patterns, harden defenses, and respond to incidents faster with generative AI.
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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. -
ACTINIUM targets Ukrainian organizations
The Microsoft Threat Intelligence Center (MSTIC) is sharing information on a threat group named ACTINIUM, which has been operational for almost a decade and has consistently pursued access to organizations in Ukraine or entities related to Ukrainian affairs. -
Guidance for preventing, detecting, and hunting for exploitation of the Log4j 2 vulnerability
Microsoft is tracking threats taking advantage of the remote code execution (RCE) vulnerability in Apache Log4j 2. -
Structured threat hunting: One way Microsoft Defender Experts for Hunting prioritizes customer defense
Our approach to threat hunting is designed to evaluate impact and escalate potential threats for investigation, based on how damaging the potential threat would be. Go beyond data protection with Microsoft Purview
Govern, protect, and manage all of your data with Microsoft Purview, comprehensive solutions to help give you better visibility and control.
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NOBELIUM targeting delegated administrative privileges to facilitate broader attacks
The Microsoft Threat Intelligence Center (MSTIC) has detected nation-state activity associated with the threat actor tracked as NOBELIUM, attempting to gain access to downstream customers of multiple cloud service providers (CSP), managed service providers (MSP), and other IT services organizations. -
Analyzing attacks that exploit the CVE-2021-40444 MSHTML vulnerability
This blog details our in-depth analysis of the attacks that used the CVE-2021-40444, provides detection details and investigation guidance for Microsoft 365 Defender customers, and lists mitigation steps for hardening networks against this and similar attacks. -
Attackers use Morse code, other encryption methods in evasive phishing campaign
During our year-long investigation of a targeted, invoice-themed XLS. -
Protecting customers from a private-sector offensive actor using 0-day exploits and DevilsTongue malware
The Microsoft Threat Intelligence Center (MSTIC) alongside the Microsoft Security Response Center (MSRC) has uncovered a private-sector offensive actor, or PSOA, that we are calling SOURGUM in possession of now-patched, Windows 0-day exploits (CVE-2021-31979 and CVE-2021-33771).
