Ransomware

Ransomware as a service ecosystems make it easier for attackers of any skill to launch effective attacks. Learn how these threats work—and how to detect, contain, and recover from 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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June 1, 2022

11 min read

Using Python to unearth a goldmine of threat intelligence from leaked chat logs

Dealing with a great amount of data can be time consuming, thus using Python can be very powerful to help analysts sort information and extract the most relevant data for their investigation.
June 13, 2022

15 min read

The many lives of BlackCat ransomware

The use of an unconventional programming language, multiple target devices and possible entry points, and affiliation with prolific threat activity groups have made the BlackCat ransomware a prevalent threat and a prime example of the growing ransomware-as-a-service (RaaS) gig economy.
June 21, 2022

7 min read

Improving AI-based defenses to disrupt human-operated ransomware

To disrupt human-operated ransomware attacks as early as possible, we enhanced the AI-based protections in Microsoft Defender for Endpoint with a range of specialized machine learning techniques that swiftly identify and block malicious files, processes, or behavior observed during active attacks.
July 5, 2022

16 min read

Hive ransomware gets upgrades in Rust

With its latest variant carrying several major upgrades, Hive proves it’s one of the fastest evolving ransomware payload, exemplifying the continuously changing ransomware ecosystem.
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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July 14, 2022

13 min read

North Korean threat actor targets small and midsize businesses with H0lyGh0st ransomware

A group of actors originating from North Korea that MSTIC tracks as DEV-0530 has been developing and using ransomware in attacks since June 2021.
September 7, 2022

11 min read

Profiling DEV-0270: PHOSPHORUS’ ransomware operations

Microsoft threat intelligence teams have been tracking multiple ransomware campaigns tied to DEV-0270, also known as Nemesis Kitten, a sub-group of Iranian actor PHOSPHORUS.
September 8, 2022

21 min read

Microsoft investigates Iranian attacks against the Albanian government

Shortly after the destructive cyberattacks on the Albanian government in mid-July, the Microsoft Detection and Response Team (DART) was engaged to lead an investigation into the attacks.
October 14, 2022

8 min read

New “Prestige” ransomware impacts organizations in Ukraine and Poland

The Microsoft Threat Intelligence Center (MSTIC) has identified evidence of a novel ransomware campaign attributed to IRIDIUM targeting organizations in the logistics and transportation industry in Ukraine and Poland utilizing a previously unidentified ransomware payload.
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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October 18, 2022

13 min read

Defenders beware: A case for post-ransomware investigations

The Microsoft Detection and Response Team (DART) details a recent ransomware incident in which the attacker used a collection of commodity tools and techniques, such as using living-off-the-land binaries, to launch their malicious code.
October 25, 2022

11 min read

DEV-0832 (Vice Society) opportunistic ransomware campaigns impacting US education sector

In recent months, Microsoft has detected active ransomware and extortion campaigns impacting the global education sector, particularly in the US, by a threat actor we track as DEV-0832, also known as Vice Society.
October 27, 2022

15 min read

Raspberry Robin worm part of larger ecosystem facilitating pre-ransomware activity

Microsoft has discovered recent activity indicating that the Raspberry Robin worm is part of a complex and interconnected malware ecosystem, with links to other malware families and alternate infection methods beyond its original USB drive spread.
November 3, 2022

6 min read

Stopping C2 communications in human-operated ransomware through network protection

Providing advanced protection against increasingly sophisticated human-operated ransomware, Microsoft Defender for Endpoint’s network protection leverages threat intelligence and machine learning to block command-and-control (C2) communications.