Partnering with the industry to minimize false positives

Every day, antivirus capabilities in Windows Defender Advanced Threat Protection Windows Defender ATP protect millions of customers from threats. To effectively scale protection, Windows Defender ATP uses intelligent systems that combine multiple layers of machine learning models, behavior-based...

Cybersecurity threats: How to discover, remediate, and mitigate

This blog is part of a series that responds to common questions we receive from customers about deployment of Microsoft 365 security solutions. In this series youll find context, answers, and guidance for deployment and driving adoption within your organization. Check out our last blog, Protect...

Protecting the protector: Hardening machine learning defenses against adversarial attacks

Harnessing the power of machine learning and artificial intelligence has enabled Windows Defender Advanced Threat Protection Windows Defender ATP next-generation protection to stop new malware attacks before they can get started often within milliseconds. These predictive technologies are central...

How Microsoft 365 Security integrates with your broader IT ecosystem—part 2

Todays post was coauthored by Debraj Ghosh, Senior Product Marketing Manager, and Diana Kelley, Cybersecurity Field CTO. In part 1 of our blog series, we shared the Microsoft 365 Security strategy for integrating with the broader security community. Today, we cover the services Microsoft 365...

Attack inception: Compromised supply chain within a supply chain poses new risks

A new software supply chain attack unearthed by Windows Defender Advanced Threat Protection Windows Defender ATP emerged as an unusual multi-tier case. Unknown attackers compromised the shared infrastructure in place between the vendor of a PDF editor application and one of its software vendor...

Hawkeye Keylogger – Reborn v8: An in-depth campaign analysis

Much of cybercrime today is fueled by underground markets where malware and cybercriminal services are available for purchase. These markets in the deep web commoditize malware operations. Even novice cybercriminals can buy malware toolkits and other services they might need for malware campaigns...

Machine learning vs. social engineering

Machine learning is a key driver in the constant evolution of security technologies at Microsoft. Machine learning allows Microsoft 365 to scale next-gen protection capabilities and enhance cloud-based, real-time blocking of new and unknown threats. Just in the last few months, machine learning h...

Adding transparency and context into industry AV test results

Corporate Vice President Brad Anderson recently shared his insights on how Windows Defender Advanced Threat Protection Windows Defender ATP evolved to achieve important quality milestones. Our Windows Defender ATP team is committed to delivering industry-leading protection, customer choice, and...

Enhancing Office 365 Advanced Threat Protection with detonation-based heuristics and machine learning

Email, coupled with reliable social engineering techniques, continues to be one of the primary entry points for credential phishing, targeted attacks, and commodity malware like ransomware and, increasingly in the last few months, cryptocurrency miners. Office 365 Advanced Threat Protection ATP...

Office 365 in the 0-day vulnerability baseStriker appear in the wild examples of the use-vulnerability warning-the black bar safety net

5 October 1, Avanan the researchers found that Office 365 appears in a named baseStriker of 0-day vulnerabilities. An attacker can exploit this vulnerability to send malicious mail, bypassing the Office 365 account security mechanisms. ! baseStriker vulnerability of the code to use the less...

Securing the modern workplace with Microsoft 365 threat protection – part 3

This post is authored by Debraj Ghosh, Senior Product Marketing Manager, Microsoft 365 Security. Detecting ransomware in the modern workplace Over the last two weeks, we have shared with you the roots of Microsoft 365 threat protection and how Microsoft 365 threat protect helps protect the modern...

Teaming up in the war on tech support scams

Editors note: Erik Wahlstrom spoke about the far-reaching impact of tech support scams and the need for industry-wide cooperation in his RSA Conference 2018 talk Tech Scams: Its Time to Release the Hounds. Social engineering attacks like tech support scams are so common because theyre so effectiv...

Hunting down Dofoil with Windows Defender ATP

Dofoil is a sophisticated threat that attempted to install coin miner malware on hundreds of thousands of computers in March, 2018. In previous blog posts we detailed how behavior monitoring and machine learning in Windows Defender AV protected customers from a massive Dofoil outbreak that we...

Why Windows Defender Antivirus is the most deployed in the enterprise

Statistics about the success and sophistication of malware can be daunting. The following figure is no different: Approximately 96% of all malware is polymorphic meaning that it is only experienced by a single user and device before it is replaced with yet another malware variant. This is because...

Invisible resource thieves: The increasing threat of cryptocurrency miners

The surge in Bitcoin prices has driven widescale interest in cryptocurrencies. While the future of digital currencies is uncertain, they are shaking up the cybersecurity landscape as they continue to influence the intent and nature of attacks. Cybercriminals gave cryptocurrencies a bad name when...

FinFisher exposed: A researcher’s tale of defeating traps, tricks, and complex virtual machines

Office 365 Advanced Threat Protection Office 365 ATP blocked many notable zero-day exploits in 2017. In our analysis, one activity group stood out: NEODYMIUM. This threat actor is remarkable for two reasons: Its access to sophisticated zero-day exploits for Microsoft and Adobe software Its use of...

A week in security (February 12 – February 18)

Last week on Malwarebytes Labs, we looked at a huge Android cryptomining campaign, malicious apps on Google Play, and some Apple scams doing the rounds. We also explored the world of healthcare security, and dived into the land of scammy Valentine's Day tricks and cheats. Other news Thought the...

Windows Defender ATP の機械学習と Antimalware Scan Interface: スクリプトを悪用した「環境寄生型」攻撃の検出

本記事は、Microsoft Secure のブログ “Windows Defender ATP machine learning and AMSI: Unearthing script-based attacks that ‘live off the land’”...

Windows Defender Advanced Threat Protection で反射型の DLL 読み込みを検出

本記事は、Windows Security のブログ “Detecting reflective DLL loading with Windows Defender ATP” 2017 年 11 月 13 日 米国時間公開...

Windows Defender ATP machine learning and AMSI: Unearthing script-based attacks that ‘live off the land’

Scripts are becoming the weapon of choice of sophisticated activity groups responsible for targeted attacks as well as malware authors who indiscriminately deploy commodity threats. Scripting engines such as JavaScript, VBScript, and PowerShell offer tremendous benefits to attackers. They run...