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Microsoft Outlook Flaw Exploited by Russia's APT28 to Hack Czech, German Entities

Microsoft Outlook Flaw Exploited by Russia's APT28 to Hack Czech, German Entities

May 04, 2024 Cyber Espionage / Network Security
Czechia and Germany on Friday revealed that they were the target of a long-term cyber espionage campaign conducted by the Russia-linked nation-state actor known as  APT28 , drawing condemnation from the European Union (E.U.), the North Atlantic Treaty Organization (NATO), the U.K., and the U.S. The Czech Republic's Ministry of Foreign Affairs (MFA), in a statement, said some unnamed entities in the country have been attacked using a security flaw in Microsoft Outlook that came to light early last year. "Cyber attacks targeting political entities, state institutions and critical infrastructure are not only a threat to national security, but also disrupt the democratic processes on which our free society is based," the MFA  said . The security flaw in question is  CVE-2023-23397 , a now-patched critical privilege escalation bug in Outlook that could allow an adversary to access Net-NTLMv2 hashes and then use them to authenticate themselves by me...
Expert-Led Webinar - Uncovering Latest DDoS Tactics and Learn How to Fight Back

Expert-Led Webinar - Uncovering Latest DDoS Tactics and Learn How to Fight Back

May 03, 2024 Live Webinar / Server Security
In today's rapidly evolving digital landscape, the threat of Distributed Denial of Service (DDoS) attacks looms more significant than ever. As these cyber threats grow in sophistication, understanding and countering them becomes crucial for any business seeking to protect its online presence. To address this urgent need, we are thrilled to announce our upcoming webinar, " Uncovering Contemporary DDoS Attack Tactics—How to Fight Back ," featuring the expertise of Andrey Slastenov, Head of Security at Gcore. What You Will Learn: Understanding the Threat:  Explore the escalated risks DDoS attacks pose to your business, including recent advancements in attack strategies like IoT botnets and amplification tactics. Real-World Consequences:  Hear firsthand accounts of businesses that faced these attacks and the impacts on their operations and reputation. Proactive Defense Strategies:  Learn actionable steps to enhance your cybersecurity posture and effectively mitigate po...
Hackers Increasingly Abusing Microsoft Graph API for Stealthy Malware Communications

Hackers Increasingly Abusing Microsoft Graph API for Stealthy Malware Communications

May 03, 2024 Cloud Security / Threat Intelligence
Threat actors have been increasingly weaponizing  Microsoft Graph API  for malicious purposes with the aim of evading detection. This is done to "facilitate communications with command-and-control (C&C) infrastructure hosted on Microsoft cloud services," the Symantec Threat Hunter Team, part of Broadcom,  said  in a report shared with The Hacker News. Since January 2022, multiple nation-state-aligned hacking groups have been observed using Microsoft Graph API for C&C. This includes threat actors tracked as  APT28 ,  REF2924 ,  Red Stinger ,  Flea ,  APT29 , and  OilRig . The first known instance of Microsoft Graph API abuse prior to its wider adoption dates back to June 2021 in connection with an activity cluster dubbed  Harvester  that was found using a custom implant known as Graphon that utilized the API to communicate with Microsoft infrastructure. Symantec said it ...
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The Hidden Risks of SaaS: Why Built-In Protections Aren't Enough for Modern Data Resilience

The Hidden Risks of SaaS: Why Built-In Protections Aren't Enough for Modern Data Resilience

Jun 26, 2025Data Protection / Compliance
SaaS Adoption is Skyrocketing, Resilience Hasn't Kept Pace SaaS platforms have revolutionized how businesses operate. They simplify collaboration, accelerate deployment, and reduce the overhead of managing infrastructure. But with their rise comes a subtle, dangerous assumption: that the convenience of SaaS extends to resilience. It doesn't. These platforms weren't built with full-scale data protection in mind . Most follow a shared responsibility model — wherein the provider ensures uptime and application security, but the data inside is your responsibility. In a world of hybrid architectures, global teams, and relentless cyber threats, that responsibility is harder than ever to manage. Modern organizations are being stretched across: Hybrid and multi-cloud environments with decentralized data sprawl Complex integration layers between IaaS, SaaS, and legacy systems Expanding regulatory pressure with steeper penalties for noncompliance Escalating ransomware threats and inside...
New Guide Explains How to Eliminate the Risk of Shadow SaaS and Protect Corporate Data

New Guide Explains How to Eliminate the Risk of Shadow SaaS and Protect Corporate Data

May 03, 2024 SaaS Security / Browser Security
SaaS applications are dominating the corporate landscape. Their increased use enables organizations to push the boundaries of technology and business. At the same time, these applications also pose a new security risk that security leaders need to address, since the existing security stack does not enable complete control or comprehensive monitoring of their usage. LayerX has recently released a new guide, " Let There Be Light: Eliminating the Risk of Shadow SaaS " for security and IT teams, which addresses this gap. The guide explains the challenges of shadow SaaS, i.e., the use of unauthorized SaaS apps for work purposes, and suggests practices and controls that can mitigate them. The guide also compares various security controls that attempt to address this risk (CASB, SASE, Secure Browser Extension) and explains how each one operates and its efficacy. Consequently, the guide is a must-read for all security leaders at...
NSA, FBI Alert on N. Korean Hackers Spoofing Emails from Trusted Sources

NSA, FBI Alert on N. Korean Hackers Spoofing Emails from Trusted Sources

May 03, 2024 Email Security / Malware
The U.S. government on Thursday published a new cybersecurity advisory warning of North Korean threat actors' attempts to send emails in a manner that makes them appear like they are from legitimate and trusted parties. The joint bulletin was published by the National Security Agency (NSA), the Federal Bureau of Investigation (FBI), and the Department of State. "The DPRK [Democratic People's Republic of Korea] leverages these spear-phishing campaigns to collect intelligence on geopolitical events, adversary foreign policy strategies, and any information affecting DPRK interests by gaining illicit access to targets' private documents, research, and communications," the NSA  said . The technique specifically concerns exploiting improperly configured DNS Domain-based Message Authentication, Reporting, and Conformance ( DMARC ) record policies to conceal social engineering attempts. In doing so, the threat actors can send spoofed emails as if...
Google Announces Passkeys Adopted by Over 400 Million Accounts

Google Announces Passkeys Adopted by Over 400 Million Accounts

May 03, 2024 Passwordless / Encryption
Google on Thursday announced that passkeys are being used by over 400 million Google accounts, authenticating users more than 1 billion times  over the past two years . "Passkeys are easy to use and phishing resistant, only relying on a fingerprint, face scan or a pin making them 50% faster than passwords," Heather Adkins, vice president of security engineering at Google,  said . The search giant notes that passkeys are already used for authentication on Google Accounts more often than legacy forms of two-factor authentication, such as SMS one-time passwords (OTPs) and app based OTPs combined. In addition, the company said it's expanding  Cross-Account Protection , which alerts of suspicious events with third-party apps and services connected to a user's Google Account, to include more apps and services. Google is also expected to support the use of passkeys for high-risk users as part of its Advanced Protection Progr...
Four Critical Vulnerabilities Expose HPE Aruba Devices to RCE Attacks

Four Critical Vulnerabilities Expose HPE Aruba Devices to RCE Attacks

May 03, 2024 Vulnerability / Software Security
HPE Aruba Networking (formerly Aruba Networks) has released security updates to address critical flaws impacting ArubaOS that could result in remote code execution (RCE) on affected systems. Of the  10 security defects , four are rated critical in severity - CVE-2024-26304  (CVSS score: 9.8) - Unauthenticated Buffer Overflow Vulnerability in the L2/L3 Management Service Accessed via the PAPI Protocol CVE-2024-26305  (CVSS score: 9.8) - Unauthenticated Buffer Overflow Vulnerability in the Utility Daemon Accessed via the PAPI Protocol CVE-2024-33511  (CVSS score: 9.8) - Unauthenticated Buffer Overflow Vulnerability in the Automatic Reporting Service Accessed via the PAPI Protocol CVE-2024-33512  (CVSS score: 9.8) - Unauthenticated Buffer Overflow Vulnerability in the Local User Authentication Database Accessed via the PAPI Protocol A threat actor could exploit the aforementioned buffer overflow bugs by sending specially crafted packet...
Popular Android Apps Like Xiaomi, WPS Office Vulnerable to File Overwrite Flaw

Popular Android Apps Like Xiaomi, WPS Office Vulnerable to File Overwrite Flaw

May 02, 2024 Vulnerability / Android
Several popular Android applications available in Google Play Store are susceptible to a path traversal-affiliated vulnerability codenamed the Dirty Stream attack that could be exploited by a malicious app to overwrite arbitrary files in the vulnerable app's home directory. "The implications of this vulnerability pattern include arbitrary code execution and token theft, depending on an application's implementation," Dimitrios Valsamaras of the Microsoft Threat Intelligence team  said  in a report published Wednesday. Successful exploitation could allow an attacker to take full control of the application's behavior and leverage the stolen tokens to gain unauthorized access to the victim's online accounts and other data. Two of the apps that were found vulnerable to the problem are as follows - Xiaomi File Manager (com.mi. Android.globalFileexplorer) - Over 1 billion installs WPS Office (cn.wps.m...
Ukrainian REvil Hacker Sentenced to 13 Years and Ordered to Pay $16 Million

Ukrainian REvil Hacker Sentenced to 13 Years and Ordered to Pay $16 Million

May 02, 2024 Ransomware / Cyber Crime
A Ukrainian national has been sentenced to more than 13 years in prison and ordered to pay $16 million in restitution for carrying out thousands of ransomware attacks and extorting victims. Yaroslav Vasinskyi (aka Rabotnik), 24, along with his co-conspirators part of the  REvil ransomware group  orchestrated more than 2,500 ransomware attacks and demanded ransom payments in cryptocurrency totaling more than $700 million. "The co-conspirators demanded ransom payments in cryptocurrency and used cryptocurrency exchangers and mixing services to hide their ill-gotten gains," the U.S. Department of Justice (DoJ)  said . "To drive their ransom demands higher, Sodinokibi/REvil co-conspirators also publicly exposed their victims' data when victims would not pay ransom demands." Vasinskyi was  extradited  to the U.S. in March 2022 following his arrest in Poland in October 2021. REvil, prior to formally going offline in late 2021, was responsible ...
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