Select Page
Machine learning vs. social engineering

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 ... continue reading

Security baseline for Windows 10 “April 2018 Update” (v1803) – FINAL

Microsoft is pleased to announce the final release of the security configuration baseline settings for Windows 10 “April 2018 Update,” also known as version 1803, “Redstone 4,” or RS4. Download the content here: Windows-10-RS4-Security-Baseline-FINAL The downloadable attachment to this blog ... continue reading
Hunting down Dofoil with Windows Defender ATP

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 ... continue reading

Security baseline for Windows 10 v1803 “Redstone 4” – DRAFT

Microsoft is pleased to announce the draft release of the security configuration baseline settings for the upcoming Windows 10 version 1803, codenamed “Redstone 4.” Please evaluate this proposed baseline and send us your feedback via blog comments below. Download the ... continue reading
Poisoned peer-to-peer app kicked off Dofoil coin miner outbreak

Poisoned peer-to-peer app kicked off Dofoil coin miner outbreak

On March 7, we reported that a massive Dofoil campaign attempted to install malicious cryptocurrency miners on hundreds of thousands of computers. Windows Defender Antivirus, with its behavior monitoring, machine learning technologies, and layered approach to security detected and blocked ... continue reading
Invisible resource thieves: The increasing threat of cryptocurrency miners

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 ... continue reading
Figure 1: Windows Defender ATP machine timeline view with Windows Defender Exploit Guard event

Behavior monitoring combined with machine learning spoils a massive Dofoil coin mining campaign

Just before noon on March 6 (PST), Windows Defender AV blocked more than 80,000 instances of several sophisticated trojans that exhibited advanced cross-process injection techniques, persistence mechanisms, and evasion methods. Behavior-based signals coupled with cloud-powered machine learning models uncovered this ... continue reading
Detonating a bad rabbit: Windows Defender Antivirus and layered machine learning defenses

Detonating a bad rabbit: Windows Defender Antivirus and layered machine learning defenses

Windows Defender Antivirus uses a layered approach to protection: tiers of advanced automation and machine learning models evaluate files to reach a verdict on suspected malware. While Windows Defender AV detects a vast majority of new malware files at first ... continue reading
Microsoft teams up with law enforcement and other partners to disrupt Gamarue (Andromeda)

Microsoft teams up with law enforcement and other partners to disrupt Gamarue (Andromeda)

Today, with help from Microsoft security researchers, law enforcement agencies around the globe, in cooperation with Microsoft Digital Crimes Unit (DCU), announced the disruption of Gamarue, a widely distributed malware that has been used in networks of infected computers collectively ... continue reading
Data center

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 ... continue reading