Tag: Sigma

Stealthy Strela Stealer Detection: Info-Stealing Malware Resurfaces with Enhanced Capabilities to Target Central and Southwestern Europe
Stealthy Strela Stealer Detection: Info-Stealing Malware Resurfaces with Enhanced Capabilities to Target Central and Southwestern Europe

Security researchers have revealed a stealthy campaign targeting users in Central and Southwestern Europe with an email credential stealer. Dubbed Strela, this evasive malware is deployed via phishing emails, utilizing obfuscated JavaScript and WebDAV to circumvent conventional security measures. Since its emergence two years ago, Strela Stealer has significantly enhanced its malicious capabilities, allowing it […]

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UAC-0001 aka APT28 Attack Detection: Leveraging PowerShell Command in Clipboard as Initial Entry Point
UAC-0001 aka APT28 Attack Detection: Leveraging PowerShell Command in Clipboard as Initial Entry Point

The notorious Russian state-sponsored hacking group known as APT28 or UAC-0001, which has a history of launching targeted phishing attacks on Ukrainian public sector organizations, has resurfaced in the cyber threat landscape. In the latest adversary campaign covered by CERT-UA, attackers weaponize a PowerShell command embedded in the clipboard as an entry point to further conduct offensive […]

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CVE-2024-47575 Detection: FortiManager API Vulnerability Exploited in Zero-Day Attacks
CVE-2024-47575 Detection: FortiManager API Vulnerability Exploited in Zero-Day Attacks

Attackers frequently launch high-profile attacks by exploiting RCE vulnerabilities in popular software products. Cybersecurity researchers have recently identified the widespread exploitation of FortiManager instances, with 50+ potentially compromised devices across multiple industry verticals. Defenders disclosed a critical FortiManager API vulnerability, tracked as CVE-2024-47575, that was exploited in zero-day attacks by adversaries to execute arbitrary code […]

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UAC-0218 Attack Detection: Adversaries Steal Files Using HOMESTEEL Malware
UAC-0218 Attack Detection: Adversaries Steal Files Using HOMESTEEL Malware

Hot on the heels of the “Rogue RDP” attacks exploiting the phishing attack vector and targeting Ukrainian state bodies and military units, CERT-UA researchers uncovered another wave of phishing attacks leveraging emails with invoice-related subject lures and weaponizing HOMESTEEL malware for file theft. The UAC-0218 group is believed to be behind the ongoing adversary operation. […]

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MEDUZASTEALER Detection: Hackers Distribute Malware Masquerading the Sender as Reserve+ Technical Support via Telegram Messaging Service
MEDUZASTEALER Detection: Hackers Distribute Malware Masquerading the Sender as Reserve+ Technical Support via Telegram Messaging Service

Hard on the heels of a new wave of cyber-attacks by UAC-0050 involving cyber espionage and financial thefts and relying on a diverse number of tools, including MEDUZASTEALER, another suspicious activity comes to the spotlight in the Ukrainian cyber threat arena. CERT-UA recently launched a new alert covering spoofed phishing attacks spreading MEDUZASTEALER via Telegram […]

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UAC-0050 Attack Detection: russia-Backed APT Performs Cyber Espionage, Financial Crimes, and Disinformation Operations Against Ukraine
UAC-0050 Attack Detection: russia-Backed APT Performs Cyber Espionage, Financial Crimes, and Disinformation Operations Against Ukraine

The UAC-0050 hacking collective notorious for its long-standing offensive operations against Ukraine steps back into the cyber threat arena. CERT-UA researchers have long been investigating the group’s activity, which primarily focuses on three key directions, including cyber espionage and financial theft, along with information and psychological operations tracked under the “Fire Cells Group” brand. Financially […]

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Earth Simnavaz (aka APT34) Attack Detection: Iranian Hackers Leverage Windows Kernel Vulnerability to Target UAE and Gulf Region
Earth Simnavaz (aka APT34) Attack Detection: Iranian Hackers Leverage Windows Kernel Vulnerability to Target UAE and Gulf Region

Amid a spike in cyber-espionage efforts by North Korean APT groups targeting Southeast Asia under the SHROUDED#SLEEP campaign, cybersecurity experts are raising alarms about a parallel wave of attacks orchestrated by Iran-affiliated hackers. This newly discovered campaign focuses on spying on organizations across the UAE and Gulf regions. Known as Earth Simnavaz APT (also referred […]

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LemonDuck Malware Detection: Exploits CVE-2017-0144 and Other Microsoft’s Server Message BlockSMB Vulnerabilities for Cryptocurrency Mining
LemonDuck Malware Detection: Exploits CVE-2017-0144 and Other Microsoft’s Server Message BlockSMB Vulnerabilities for Cryptocurrency Mining

LemonDuck, a notorious crypto-mining malware, has been observed targeting Windows servers by exploiting known vulnerabilities in Microsoft’s Server Message Block (SMB) protocol, including the EternalBlue flaw tracked as CVE-2017-0144. The malware has evolved into a more advanced threat capable of credential theft, enriched with detection evasion techniques, and spreading through multiple attack vectors. Detect LemonDuck […]

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Shrouded#Sleep Campaign Detection: North Korean Hackers Linked to the APT37 Group Use New VeilShell Malware Targeting Southeast Asia
Shrouded#Sleep Campaign Detection: North Korean Hackers Linked to the APT37 Group Use New VeilShell Malware Targeting Southeast Asia

North Korea-affiliated APT groups have consistently ranked among the most active adversaries over the past decade. This year, security experts have observed a significant uptick in their malicious operations, driven by enhanced toolsets and an expanded range of targets. In August 2024, North Korean hackers bolstered their arsenal with the MoonPeak Trojan. A month earlier, […]

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Uncoder for Flexible Threat Detection: From Cloud to Air-Gapped Networks
Uncoder for Flexible Threat Detection: From Cloud to Air-Gapped Networks

In today’s threat landscape, when the number and sophistication of cyber attacks are constantly rising, threat actors are targeting the most secure and critical systems across continents and industries. Organizations are continually improving their cyber defense posture, migrating to cloud-based security solutions that reportedly enhance real-time threat detection capabilities. Yet, as adversaries adopt new approaches, […]

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