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Screenshot of FileCoder’s enumeration logic.

Unraveling the techniques of Mac ransomware

Ransomware continues to be one of the most prevalent and impactful threats affecting organizations, with attackers constantly evolving their techniques and expanding their tradecraft to cast a wider net of potential targets. This is evident in the range of industries, ... continue reading

How Do I Know If My AD Environment Is Impacted By The November 8th 2022 Patch?

  Q: How can I determine if objects in my AD environment are impacted by the November 8th 2022 patch? A: Use a couple of queries I wrote specifically for that purpose.   November 8th, 2022 brought us a patch ... continue reading
Screenshot of a BATLOADER landing site that poses as a TeamViewer website hosting a fake installer.

DEV-0569 finds new ways to deliver Royal ransomware, various payloads

Recent activity from the threat actor that Microsoft tracks as DEV-0569, known to distribute various payloads, has led to the deployment of the Royal ransomware, which first emerged in September 2022 and is being distributed by multiple threat actors. Observed ... continue reading
New “Prestige” ransomware impacts organizations in Ukraine and Poland

New “Prestige” ransomware impacts organizations in Ukraine and Poland

The Microsoft Threat Intelligence Center (MSTIC) has identified evidence of a novel ransomware campaign targeting organizations in the transportation and related logistics industries in Ukraine and Poland utilizing a previously unidentified ransomware payload. We observed this new ransomware, which labels ... continue reading
Attack chain diagram of ZINC campaign showing steps and related activities

ZINC weaponizing open-source software

In recent months, Microsoft has detected a wide range of social engineering campaigns using weaponized legitimate open-source software by an actor we track as ZINC. Microsoft Threat Intelligence Center (MSTIC) observed activity targeting employees in organizations across multiple industries including ... continue reading
This diagram illustrates the typical infection chain of this Android malware. The infection starts from an SMS message that contains a malicious link that leads to the malicious APK.

Rewards plus: Fake mobile banking rewards apps lure users to install info-stealing RAT on Android devices

Our analysis of a recent version of a previously reported info-stealing Android malware, delivered through an ongoing SMS campaign, demonstrates the continuous evolution of mobile threats. Masquerading as a banking rewards app, this new version has additional remote access trojan ... continue reading
JoelVickery_0-1657509496356.png

The RC4 Removal Files Part 3 – The “Everything Else” Of It

I’m not a fan of folks that glaze over problems, not that I’m a pessimist mind you, I do my fair share of finding the bright side of bad situations. When this RC4 project started, I heard lots of optimistic ... continue reading
Graphical user interface, text, application

Malicious IIS extensions quietly open persistent backdoors into servers

Attackers are increasingly leveraging Internet Information Services (IIS) extensions as covert backdoors into servers, which hide deep in target environments and provide a durable persistence mechanism for attackers. While prior research has been published on specific incidents and variants, little ... continue reading
A diagram of how the Wireless Application Protocol billing process works. Interactions between the mobile device and premium service provider are mapped out, from the moment the device browses through services until the confirmation of service subscription.

Toll fraud malware: How an Android application can drain your wallet

Toll fraud malware, a subcategory of billing fraud in which malicious applications subscribe users to premium services without their knowledge or consent, is one of the most prevalent types of Android malware – and it continues to evolve. Compared to ... continue reading
Troubleshooting HTTP/3 in http.sys

Troubleshooting HTTP/3 in http.sys

HTTP/3 is a major change to HTTP. It switches away from using TCP as a transport and TLS separately to using QUIC as a transport which has TLS 1.3 or higher built in. These changes mean that migrating from HTTP/2 ... continue reading