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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Streamline privacy management with Microsoft Priva

Protect and govern personal information, reduce privacy risks, and manage subject rights requests at scale with Microsoft Priva privacy risk management solutions.

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May 25, 2022

8 min read

Detecting and preventing privilege escalation attacks leveraging Kerberos relaying (KrbRelayUp)

The privilege escalation hacking tool KrbRelayUp is a wrapper that can streamline the use of some features in Rubeus, KrbRelay, SCMUACBypass, PowerMad/ SharpMad, Whisker, and ADCSPwn tools in attacks.
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.
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 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.
Simplify endpoint management with Microsoft Intune

Microsoft Intune is a cloud-based unified endpoint management platform that empowers IT to manage, assess, and protect apps and devices.

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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.
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.
February 4, 2022

19 min read

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.
December 11, 2021

32 min read

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.
Secure and verify every identity with Microsoft Entra

Microsoft Entra expands beyond identity and access management with new product categories such as cloud infrastructure entitlement management (CIEM) and decentralized identity.

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December 2, 2021

9 min read

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.
October 25, 2021

13 min read

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.
September 15, 2021

8 min read

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.
August 12, 2021

13 min read

Attackers use Morse code, other encryption methods in evasive phishing campaign

During our year-long investigation of a targeted, invoice-themed XLS.