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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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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December 4, 2024

16 min read

Frequent freeloader part I: Secret Blizzard compromising Storm-0156 infrastructure for espionage

Microsoft has observed Secret Blizzard compromising the infrastructure and backdoors of the Pakistan-based threat actor we track as Storm-0156 for espionage against the Afghanistan government and Indian Army targets.
November 22, 2024

10 min read

Microsoft shares latest intelligence on North Korean and Chinese threat actors at CYBERWARCON

At CYBERWARCON 2024, Microsoft Threat Intelligence analysts will share research and insights on North Korean and Chinese threat actors representing years of threat actor tracking, infrastructure monitoring and disruption, and their attack tooling.
October 31, 2024

8 min read

Chinese threat actor Storm-0940 uses credentials from password spray attacks from a covert network

Since August 2023, Microsoft has observed intrusion activity targeting and successfully stealing credentials from multiple Microsoft customers that is enabled by highly evasive password spray attacks.
October 29, 2024

13 min read

Midnight Blizzard conducts large-scale spear-phishing campaign using RDP files

Since October 22, 2024, Microsoft Threat Intelligence has observed Russian threat actor Midnight Blizzard sending a series of highly targeted spear-phishing emails to individuals in government, academia, defense, non-governmental organizations, and other sectors.
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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October 8, 2024

9 min read

File hosting services misused for identity phishing

Since mid-April 2024, Microsoft has observed an increase in defense evasion tactics used in campaigns abusing file hosting services like SharePoint, OneDrive, and Dropbox.
September 26, 2024

20 min read

Storm-0501: Ransomware attacks expanding to hybrid cloud environments

Microsoft has observed the threat actor tracked as Storm-0501 launching a multi-staged attack where they compromised hybrid cloud environments and performed lateral movement from on-premises to cloud environment, leading to data exfiltration, credential theft, tampering, persistent backdoor access, and ransomware deployment.
August 30, 2024

9 min read

North Korean threat actor Citrine Sleet exploiting Chromium zero-day

Microsoft identified a North Korean threat actor exploiting a zero-day vulnerability in Chromium (CVE-2024-7971) to gain remote code execution (RCE) in the Chromium renderer process.
August 28, 2024

14 min read

Peach Sandstorm deploys new custom Tickler malware in long-running intelligence gathering operations

Between April and July 2024, Microsoft observed Iranian state-sponsored threat actor Peach Sandstorm deploying a new custom multi-stage backdoor, which we named Tickler.
Prevent threats with Microsoft Defender
The Microsoft Defender family offers comprehensive threat prevention, detection, and response capabilities for everyone—from individuals looking to protect their family to the world’s largest enterprises.
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July 25, 2024

11 min read

Onyx Sleet uses array of malware to gather intelligence for North Korea

On July 25, 2024, the United States Department of Justice (DOJ) indicted an individual linked to the North Korean threat actor that Microsoft tracks as Onyx Sleet.
June 4, 2024

7 min read

AI jailbreaks: What they are and how they can be mitigated

Microsoft security researchers, in partnership with other security experts, continue to proactively explore and discover new types of AI model and system vulnerabilities.
May 28, 2024

14 min read

Moonstone Sleet emerges as new North Korean threat actor with new bag of tricks

Microsoft has identified a new North Korean threat actor, now tracked as Moonstone Sleet (formerly Storm-1789), that combines many tried-and-true techniques used by other North Korean threat actors, as well as unique attack methodologies to target companies for its financial and cyberespionage objectives.
May 15, 2024

10 min read

Threat actors misusing Quick Assist in social engineering attacks leading to ransomware

Microsoft Threat Intelligence has observed Storm-1811 misusing the client management tool Quick Assist to target users in social engineering attacks that lead to malware like Qakbot followed by Black Basta ransomware deployment.