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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
A human-operated ransomware attack example highlighting C2 usage. The attacker begins with the initial access stage, followed by execution, the initial C2 connection, persistence, a beaconing C2 connection, a post-exploitation C2 connection that continues throughout the attack, leading to lateral movement, and the final impact stage.

Stopping C2 communications in human-operated ransomware through network protection

Command-and-control (C2) servers are an essential part of ransomware, commodity, and nation-state attacks. They are used to control infected devices and perform malicious activities like downloading and launching payloads, controlling botnets, or commanding post-exploitation penetration frameworks to breach an organization ... continue reading
DEV-0832 (Vice Society) opportunistic ransomware campaigns impacting US education sector

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. Shifting ransomware payloads over time from BlackCat, ... continue reading
Timeline of events for a recent ransomware incident.

Defenders beware: A case for post-ransomware investigations

Ransomware is one of the most pervasive threats that Microsoft Detection and Response Team (DART) responds to today. The groups behind these attacks continue to add sophistication to their tactics, techniques, and procedures (TTPs) as most network security postures increase ... 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
Table showing the AV-Comparatives test cases and the corresponding results for Microsoft Defender for Endpoint (rows) in the following areas (columns): LSASS dumping was possible, Extracting credentials (offline) from respective minidump file was possible, Prevention by AV module, and Detection by EDR module.

Detecting and preventing LSASS credential dumping attacks

Obtaining user operating system (OS) credentials from a targeted device is among threat actors’ primary goals when launching attacks because these credentials serve as a gateway to various objectives they can achieve in their target organization’s environment, such as lateral ... continue reading
An organizational chart of the different threat actors that worked together in attacking the Albanian government. The top level mentions Iran's Ministry of Intelligence and Security as the sponsor organization. A table on the left side lists down the threat actor group names and their corresponding aliases.

Microsoft investigates Iranian attacks against the Albanian government

Shortly after the destructive cyberattacks against the Albanian government in mid-July, the Microsoft Detection and Response Team (DART) was engaged by the Albanian government to lead an investigation into the attacks. At the time of the attacks and our engagement ... continue reading
Infection chain describing the usual tactics and techniques used by DEV-0270 actor group.

Profiling DEV-0270: PHOSPHORUS’ ransomware operations

Microsoft threat intelligence teams have been tracking multiple ransomware campaigns and have tied these attacks to DEV-0270, also known as Nemesis Kitten, a sub-group of Iranian actor PHOSPHORUS. Microsoft assesses with moderate confidence that DEV-0270 conducts malicious network operations, including ... continue reading
MERCURY attack chain throughout the initial access, execution, discovery, persistence, credential theft, lateral movement, and communications stages.

MERCURY leveraging Log4j 2 vulnerabilities in unpatched systems to target Israeli organizations

In recent weeks, the Microsoft Threat Intelligence Center (MSTIC) and Microsoft 365 Defender Research Team detected Iran-based threat actor MERCURY leveraging exploitation of Log4j 2 vulnerabilities in SysAid applications against organizations all located in Israel. MSTIC assesses with high confidence ... continue reading
Auto-Complete with CIM

The many flavours of WMI management

WMI is arguably one of the greatest tools a system administrator can have. You can manage Windows workstations, interact with Microsoft products, like the Configuration Manager, monitor server’s resources and many more. Today, we are going to look at the ... continue reading