Tag: Sigma

CVE-2023-37580 Detection: Four Hacking Groups Exploit a Zimbra Zero-Day Vulnerability Targeting State Bodies
CVE-2023-37580 Detection: Four Hacking Groups Exploit a Zimbra Zero-Day Vulnerability Targeting State Bodies

Vulnerabilities affecting popular software products, like Zimbra Collaboration Suite (ZCS), continuously expose organizations in multiple industry vectors, including the public sector, to increasing risks. Defenders exposed a minimum of four offensive operations employing a Zimbra zero-day vulnerability tracked as CVE-2023-37580, specifically designed to extract sensitive data from government entities across multiple countries. Detect CVE-2023-37580 Exploitation […]

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Remcos RAT Detection: UAC-0050 Hackers Launch Phishing Attacks Impersonating the Security Service of Ukraine
Remcos RAT Detection: UAC-0050 Hackers Launch Phishing Attacks Impersonating the Security Service of Ukraine

CERT-UA researchers have recently published a novel heads-up that covers ongoing phishing attacks against Ukraine involving distribution of Remcos RAT. The group in charge of this offensive campaign, which involves massively distributing spoofing emails with a false sender identity masquerading as the Security Service of Ukraine, is tracked as UAC-0050. UAC-0050 Attack Analysis Covered in […]

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CVE-2023-47246 Detection: Lace Tempest Hackers Actively Exploit a Zero-Day Vulnerability in SysAid IT Software
CVE-2023-47246 Detection: Lace Tempest Hackers Actively Exploit a Zero-Day Vulnerability in SysAid IT Software

This November, a set of new zero-days in the popular software products are emerging in the cyber domain, like CVE-2023-22518 affecting all versions of Confluence Data Center and Server. Shortly after its disclosure, another zero-day flaw in SysAid IT software tracked under CVE-2023-47246 comes to the scene. Microsoft revealed traces of vulnerability exploitation, with the […]

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What Is Threat-Informed Defense?
What Is Threat-Informed Defense?

Organizations have to constantly struggle with an avalanche of threats while relying on a straightforward and proactive method to dynamically assess the performance of their security programs. Introducing a threat-informed defense strategy empowers organizations to focus on known threats and dynamically test defenses by equipping teams with better data and insights into their security program […]

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Agonizing Serpens Attack Detection: Iran-Backed Hackers Target Israeli Tech Firms and Educational Institutions
Agonizing Serpens Attack Detection: Iran-Backed Hackers Target Israeli Tech Firms and Educational Institutions

The increasing menace posed by nation-state actors continuously increases with new sophisticated attack methods adopted by APT collectives and a massive shift towards stealthiness & operational security. Recently, security researchers revealed a destructive campaign against Israeli organizations launched by an Iran-affiliated hacker group dubbed Agonizing Serpens (aka Agrius, BlackShadow). The main objective of this offensive […]

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CVE-2023-22518 Detection: Exploitation of a New Critical Vulnerability in Atlassian Confluence Leads to Cerber Ransomware Deployment 
CVE-2023-22518 Detection: Exploitation of a New Critical Vulnerability in Atlassian Confluence Leads to Cerber Ransomware Deployment 

Just over a month after the disclosure of a critical Confluence zero-day tracked as CVE-2023-22515, a novel vulnerability emerges in the cyber threat arena impacting Atlassian products. Adversaries are setting eyes on a recently fixed and maximum severity vulnerability known as CVE-2023-22518 in all versions of Confluence Data Center and Confluence Server, which enables them […]

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CVE-2023-43208 Detection: NextGen’s Mirth Connect RCE Vulnerability Exposes Healthcare Data to Risks
CVE-2023-43208 Detection: NextGen’s Mirth Connect RCE Vulnerability Exposes Healthcare Data to Risks

Vulnerabilities affecting popular software expose thousands of organizations in diverse industry sectors to severe threats. October has been rich in uncovering critical security flaws in widely used software products, like CVE-2023-4966, a hazardous Citrix NetScaler vulnerability, and CVE-2023-20198 zero-day affecting Cisco IOS XE. In the last decade of October 2023, defenders warned the global community […]

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Detection Content to Address Attacker Techniques Covered in the “Domain of Thrones: Part I” Research
Detection Content to Address Attacker Techniques Covered in the “Domain of Thrones: Part I” Research

Offensive forces continuously look for new ways to gain access to the domain environment and sustain their presence by leveraging multiple attack vectors and experimenting with diverse adversary tools and techniques. For instance, they can take advantage of revealed security flaws as in the case of adversary attempts to exploit the vulnerability in Microsoft’s Windows […]

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CVE-2023-20198 Detection: Cisco IOS XE Zero-Day Vulnerability Actively Exploited to Install Implants
CVE-2023-20198 Detection: Cisco IOS XE Zero-Day Vulnerability Actively Exploited to Install Implants

Hard on the heels of a new surge in the long-running Balada Injector campaign exploiting CVE-2023-3169, another critical security bug in popular software products comes to the spotlight. A new privilege escalation vulnerability affecting Cisco IOS XE software is actively exploited in the wild to help install implants on the impacted devices. The uncovered zero-day […]

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UAC-0165 Activity Detection: Destructive Cyber Attacks Targeting Ukrainian Telecom Providers 
UAC-0165 Activity Detection: Destructive Cyber Attacks Targeting Ukrainian Telecom Providers 

CERT-UA researchers notify defenders of the persistent malicious campaign impacting more than 11 telecom providers. The UAC-0165 group behind these destructive attacks has been targeting the Ukrainian telecom sector for a period of over 5 months aiming to cripple the critical infrastructure, which fuels the need for thorough research among defenders to preempt potential threats. […]

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