HTML smuggling surges: Highly evasive loader technique increasingly used in banking malware, targeted attacks

HTML smuggling, a highly evasive malware delivery technique that leverages legitimate HTML5 and JavaScript features, is increasingly used in email campaigns that deploy banking malware, remote access Trojans RATs, and other payloads related to targeted attacks. Notably, this technique was observe...

HTML smuggling surges: Highly evasive loader technique increasingly used in banking malware, targeted attacks

HTML smuggling, a highly evasive malware delivery technique that leverages legitimate HTML5 and JavaScript features, is increasingly used in email campaigns that deploy banking malware, remote access Trojans RATs, and other payloads related to targeted attacks. Notably, this technique was observe...

Microsoft & Adobe Patch Tuesday (November 2021) – Microsoft 55 Vulnerabilities with 6 Critical, 6 Zero-Days. Adobe 4 Vulnerabilities

Microsoft Patch Tuesday – November 2021 Microsoft patched 55 vulnerabilities in their November 2021 Patch Tuesday release, of which six are rated as critical severity and six were previously reported as zero-days. Critical Microsoft Vulnerabilities Patched CVE-2021-42298 - Microsoft Defender Remo...

CVE-2021-42298

Microsoft Defender Remote Code Execution Vulnerability...

Remote code execution

Microsoft Defender Remote Code Execution Vulnerability...

CVE-2021-42298: Improper Control of Generation of Code

Microsoft Defender Remote Code Execution Vulnerability...

Microsoft Defender Remote Code Execution Vulnerability

Microsoft Defender contains an unspecified vulnerability that allows for remote code execution...

Protect your business with Microsoft Security’s comprehensive protection

Securing an organization has never been simple. But over the past year, we’ve seen significant changes in the threat landscape that are having a major impact on organizations of every size in every sector. The frequency and sophistication of cyber events have increased significantly. We see...

Protect your business with Microsoft Security’s comprehensive protection

Securing an organization has never been simple. But over the past year, we’ve seen significant changes in the threat landscape that are having a major impact on organizations of every size in every sector. The frequency and sophistication of cyber events have increased significantly. We see...

How Microsoft Defender for IoT can secure your IoT devices

Cybersecurity threats are always evolving, and today we’re seeing a new wave of advanced attacks specifically targeting IoT devices used in enterprise environments as well as operational technology OT devices used in industrial systems and critical infrastructure like ICS/SCADA. It’s not surprisi...

Microsoft finds new macOS vulnerability, Shrootless, that could bypass System Integrity Protection

Microsoft has discovered a vulnerability that could allow an attacker to bypass System Integrity Protection SIP in macOS and perform arbitrary operations on a device. We also found a similar technique that could allow an attacker to elevate their privileges to root an affected device. We shared...

Mozilla Firefox Blocks Malicious Add-ons Installed by 455K Users

Mozilla’s Firefox team has blocked add-ons that were abusing the proxy API in order to prevent around 455,000 users from updating their browsers. In a Monday post, Mozilla’s development team members Rachel Tublitz and Stuart Colville said that they’d discovered the misbehaving add-ons in early...

Franken-phish: TodayZoo built from other phishing kits

A phishing kit built using pieces of code copied from other kits, some available for sale through publicly accessible scam sellers or are reused and repackaged by other kit resellers, provides rich insight into the state of the economy that drives phishing and email threats today. We uncovered th...

Defend against zero-day exploits with Microsoft Defender Application Guard

Zero-day security vulnerabilities—known to hackers, but unknown to software creators, security researchers, and the public—are like gold to attackers. With zero-days, or even zero-hours, developers have no time to patch the code, giving hackers enough access and time to explore and map internal...

Defend against zero-day exploits with Microsoft Defender Application Guard

Zero-day security vulnerabilities—known to hackers, but unknown to software creators, security researchers, and the public—are like gold to attackers. With zero-days, or even zero-hours, developers have no time to patch the code, giving hackers enough access and time to explore and map internal...

Catching the big fish: Analyzing a large-scale phishing-as-a-service operation

In researching phishing attacks, we came across a campaign that used a rather high volume of newly created and unique subdomains—over 300,000 in a single run. This investigation led us down a rabbit hole as we unearthed one of the operations that enabled the campaign: a large-scale...

A guide to combatting human-operated ransomware: Part 1

This blog is part one of a two-part series focused on how Microsoft DART helps customers with human-operated ransomware. For more guidance on human-operated ransomware and how to defend against these extortion-based attacks, refer to our human-operated ransomware docs page. Microsoft’s Detection...

PT-2021-6207 · Microsoft · Defender For Iot

Name of the Vulnerable Software and Affected Versions: Microsoft Defender for IoT affected versions not specified Description: The issue is related to incorrect code generation management in Microsoft Defender for IoT, which can be exploited by a remote attacker to execute arbitrary code using a...

PT-2021-6214 · Microsoft · Defender For Iot

Name of the Vulnerable Software and Affected Versions: Microsoft Defender for IoT affected versions not specified Description: The issue is related to a lack of protection measures for the SQL query structure in Microsoft Defender for IoT, which can be exploited to execute arbitrary code. This ca...

Microsoft Defender for Endpoint: The Latest Versions of Antivirus Engine & Signatures

In a previous episode on Microsoft Defender for Endpoint, I described how to get a list of antivirus engine and signatures versions for the hosts in your infrastructure using the Microsoft Graph API. But the problem remains. You know the versions that are currently installed on the hosts. But whe...