cybersecurity

MicrosoftSecurity

Data science for cybersecurity: A probabilistic time series model for detecting RDP inbound brute force attacks

Credit to Author: Eric Avena| Date: Wed, 18 Dec 2019 18:00:24 +0000

Microsoft Defender ATP data scientists and threat hunters collaborate to use a data science-driven approach to detecting RDP brute force attacks to protect customers against real-world threats.

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MicrosoftSecurity

Multi-stage downloader Trojan sLoad abuses BITS almost exclusively for malicious activities

Credit to Author: Eric Avena| Date: Thu, 12 Dec 2019 17:30:26 +0000

Many of today’s threats evolve to incorporate as many living-off-the-land techniques as possible into the attack chain. The PowerShell-based downloader Trojan known as sLoad, however, puts all its bets on BITS. Background Intelligent Transfer Service (BITS) is a component of the Windows operating system that provides an ability to transfer files in an asynchronous and…

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MicrosoftSecurity

Insights from one year of tracking a polymorphic threat

Credit to Author: Eric Avena| Date: Tue, 26 Nov 2019 17:00:56 +0000

We discovered the polymoprhic threat Dexphot in October 2018. In the months that followed, we closely tracked the threat as attackers upgraded the malware, targeted new processes, and worked around defensive measures. One year’s worth of intelligence helped us gain insight not only into the goals and motivations of Dexphot’s authors, but of cybercriminals in general.

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MicrosoftSecurity

Going in-depth on the Windows 10 random number generation infrastructure

Credit to Author: Eric Avena| Date: Mon, 25 Nov 2019 19:00:33 +0000

We are happy to release to the public The Windows 10 random number generation infrastructure white paper, which provides details about the Windows 10 pseudo-random number generator (PRNG) infrastructure, and lists the primary RNG APIs. The whitepaper also explains how the entropy system works, what the entropy sources are, and how initial seeding works.

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