Tag: Sigma

Remcos RAT and Meduza Stealer Detection: UAC-0050 Group Launches a Massive Phishing Attack Against State Bodies in Ukraine and Poland

Less than a week after a phishing campaign by UAC-0050 spreading Remcos RAT, the group attempted to launch another offensive operation. In the newly uncovered massive email distribution campaign, UAC-0050 hackers target the Ukrainian and Polish public sectors, leveraging the nefarious Remcos RAT and another malware strain dubbed Meduza Stealer. UAC-0050 Attack Description: Activity Covered […]

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UAC-0006 Attack Detection
UAC-0006 Attack Detection: Overview of the Financially Motivated Groupā€™s Campaigns Based on CERT-UA Research

The infamous hacking group known as UAC-0006 has been launching offensive operations against Ukraine since 2013 primarily driven by financial gain. CERT-UA researchers recently issued a compiled overview of the groupā€™s adversary activity aimed at raising cybersecurity awareness and minimizing risks. The group is notorious for committing financial theft by leveraging malware like SmokeLoader to […]

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UAC-0050 Attack Detection: Hackers Launch Another Targeted Campaign Spreading Remcos RATĀ 

Hard on the heels of the phishing attack impersonating the Security Service of Ukraine and using Remcos RAT, the hacking collective identified as UAC-0050 launched another adversary campaign against Ukraine leveraging the phishing attack vector. In these attacks targeting 15,000+ users hackers massively send emails with a subject and attachment lures related to a summons […]

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CVE-2023-49103 Detection
CVE-2023-49103 Detection: A Critical Vulnerability in OwnCloud’s Graph API App Leveraged for in-the-Wild Attacks

Hot on the heels of the Zimbra zero-day vulnerability, another critical security flaw affecting popular software comes to the scene. The open-source file-sharing software ownCloud has recently disclosed a trio of disturbing security holes in its products. Among them, the max severity vulnerability tracked as CVE-2023-49103 gained the CVSS score of 10 due to the […]

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Konni Group Attack Detection
Konni Group Attack Detection: North Korean Hackers Leverage russian-Language Weaponized Word Document to Spread RAT Malware

Defenders observe a new phishing attack, in which adversaries weaponize a russian-language Microsoft Word document to distribute malware that can extract sensitive data from targeted Windows instances. Hackers behind this offensive campaign belong to a North Korean group dubbed Konni, which shares similarities with a cyber-espionage cluster tracked as Kimsuky APT.  Detect Konni Group Attacks […]

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CVE-2023-37580 Detection
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

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
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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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
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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