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Alert: Brazilian Hackers Targeting Users of Over 30 Portuguese Banks

By Ravie Lakshmanan
A Brazilian threat actor is targeting more than 30 Portuguese financial institutions with information-stealing malware as part of a long-running campaign that commenced in 2021. "The attackers can steal credentials and exfiltrate users' data and personal information, which can be leveraged for malicious activities beyond financial gain," SentinelOne researchers Aleksandar Milenkoski and Tom

China's Stealthy Hackers Infiltrate U.S. and Guam Critical Infrastructure Undetected

By Ravie Lakshmanan
A stealthy China-based group managed to establish a persistent foothold into critical infrastructure organizations in the U.S. and Guam without being detected, Microsoft and the "Five Eyes" nations said on Wednesday. The tech giant's threat intelligence team is tracking the activity, which includes post-compromise credential access and network system discovery, under the name Volt Typhoon. The

Iranian Agrius Hackers Targeting Israeli Organizations with Moneybird Ransomware

By Ravie Lakshmanan
The Iranian threat actor known as Agrius is leveraging a new ransomware strain called Moneybird in its attacks targeting Israeli organizations. Agrius, also known as Pink Sandstorm (formerly Americium), has a track record of staging destructive data-wiping attacks aimed at Israel under the guise of ransomware infections. Microsoft has attributed the threat actor to Iran's Ministry of

North Korean Kimsuky Hackers Strike Again with Advanced Reconnaissance Malware

By Ravie Lakshmanan
The North Korean advanced persistent threat (APT) group known as Kimsuky has been observed using a piece of custom malware called RandomQuery as part of a reconnaissance and information exfiltration operation. "Lately, Kimsuky has been consistently distributing custom malware as part of reconnaissance campaigns to enable subsequent attacks," SentinelOne researchers Aleksandar Milenkoski and Tom

Escalating China-Taiwan Tensions Fuel Alarming Surge in Cyber Attacks

By Ravie Lakshmanan
The rising geopolitical tensions between China and Taiwan in recent months have sparked a noticeable uptick in cyber attacks on the East Asian island country. "From malicious emails and URLs to malware, the strain between China's claim of Taiwan as part of its territory and Taiwan's maintained independence has evolved into a worrying surge in attacks," the Trellix Advanced Research Center said 

U.S. Offers $10 Million Bounty for Capture of Notorious Russian Ransomware Operator

By Ravie Lakshmanan
A Russian national has been charged and indicted by the U.S. Department of Justice (DoJ) for launching ransomware attacks against "thousands of victims" in the country and across the world. Mikhail Pavlovich Matveev (aka Wazawaka, m1x, Boriselcin, and Uhodiransomwar), the 30-year-old individual in question, is alleged to be a "central figure" in the development and deployment of LockBit, Babuk,

Researchers Uncover SideWinder's Latest Server-Based Polymorphism Technique

By Ravie Lakshmanan
The advanced persistent threat (APT) actor known as SideWinder has been accused of deploying a backdoor in attacks directed against Pakistan government organizations as part of a campaign that commenced in late November 2022. "In this campaign, the SideWinder advanced persistent threat (APT) group used a server-based polymorphism technique to deliver the next stage payload," the BlackBerry

Microsoft Warns of State-Sponsored Attacks Exploiting Critical PaperCut Vulnerability

By Ravie Lakshmanan
Iranian nation-state groups have now joined financially motivated actors in actively exploiting a critical flaw in PaperCut print management software, Microsoft disclosed over the weekend. The tech giant's threat intelligence team said it observed both Mango Sandstorm (Mercury) and Mint Sandstorm (Phosphorus) weaponizing CVE-2023-27350 in their operations to achieve initial access. "This

SideCopy Using Action RAT and AllaKore RAT to infiltrate Indian Organizations

By Ravie Lakshmanan
The suspected Pakistan-aligned threat actor known as SideCopy has been observed leveraging themes related to the Indian military research organization as part of an ongoing phishing campaign. This involves using a ZIP archive lure pertaining to India's Defence Research and Development Organization (DRDO) to deliver a malicious payload capable of harvesting sensitive information, Fortinet

CERT-UA Warns of SmokeLoader and RoarBAT Malware Attacks Against Ukraine

By Ravie Lakshmanan
An ongoing phishing campaign with invoice-themed lures is being used to distribute the SmokeLoader malware in the form of a polyglot file, according to the Computer Emergency Response Team of Ukraine (CERT-UA). The emails, per the agency, are sent using compromised accounts and come with a ZIP archive that, in reality, is a polyglot file containing a decoy document and a JavaScript file. The

N. Korean Kimsuky Hackers Using New Recon Tool ReconShark in Latest Cyberattacks

By Ravie Lakshmanan
The North Korean state-sponsored threat actor known as Kimsuky has been discovered using a new reconnaissance tool called ReconShark as part of an ongoing global campaign. "[ReconShark] is actively delivered to specifically targeted individuals through spear-phishing emails, OneDrive links leading to document downloads, and the execution of malicious macros," SentinelOne researchers Tom Hegel

Chinese Hacker Group Earth Longzhi Resurfaces with Advanced Malware Tactics

By Ravie Lakshmanan
A Chinese state-sponsored hacking outfit has resurfaced with a new campaign targeting government, healthcare, technology, and manufacturing entities based in Taiwan, Thailand, the Philippines, and Fiji after more than six months of no activity. Trend Micro attributed the intrusion set to a cyber espionage group it tracks under the name Earth Longzhi, which is a subgroup within APT41 (aka HOODOO

North Korea's ScarCruft Deploys RokRAT Malware via LNK File Infection Chains

By Ravie Lakshmanan
The North Korean threat actor known as ScarCruft started experimenting with oversized LNK files as a delivery route for RokRAT malware as early as July 2022, the same month Microsoft began blocking macros across Office documents by default. "RokRAT has not changed significantly over the years, but its deployment methods have evolved, now utilizing archives containing LNK files that initiate

Vietnamese Threat Actor Infects 500,000 Devices Using 'Malverposting' Tactics

By Ravie Lakshmanan
A Vietnamese threat actor has been attributed as behind a "malverposting" campaign on social media platforms to infect over 500,000 devices worldwide over the past three months to deliver variants of information stealers such as S1deload Stealer and SYS01stealer. Malverposting refers to the use of promoted social media posts on services like Facebook and Twitter to mass propagate malicious

Chinese Hackers Spotted Using Linux Variant of PingPull in Targeted Cyberattacks

By Ravie Lakshmanan
The Chinese nation-state group dubbed Alloy Taurus is using a Linux variant of a backdoor called PingPull as well as a new undocumented tool codenamed Sword2033. That's according to findings from Palo Alto Networks Unit 42, which discovered recent malicious cyber activity carried out by the group targeting South Africa and Nepal. Alloy Taurus is the constellation-themed moniker assigned to a

Charming Kitten's New BellaCiao Malware Discovered in Multi-Country Attacks

By Ravie Lakshmanan
The prolific Iranian nation-state group known as Charming Kitten is actively targeting multiple victims in the U.S., Europe, the Middle East and India with a novel malware dubbed BellaCiao, adding to its ever-expanding list of custom tools. Discovered by Bitdefender Labs, BellaCiao is a "personalized dropper" that's capable of delivering other malware payloads onto a victim machine based on

Chinese Hackers Using MgBot Malware to Target International NGOs in Mainland China

By Ravie Lakshmanan
The advanced persistent threat (APT) group referred to as Evasive Panda has been observed targeting an international non-governmental organization (NGO) in Mainland China with malware delivered via update channels of legitimate applications like Tencent QQ. The attack chains are designed to distribute a Windows installer for MgBot malware, ESET security researcher Facundo Muñoz said in a new

Iranian Hackers Launch Sophisticated Attacks Targeting Israel with PowerLess Backdoor

By Ravie Lakshmanan
An Iranian nation-state threat actor has been linked to a new wave of phishing attacks targeting Israel that's designed to deploy an updated version of a Windows backdoor called PowerLess. Cybersecurity firm Check Point is tracking the activity cluster under its mythical creature handle Educated Manticore, which exhibits "strong overlaps" with a hacking crew known as APT35, Charming Kitten,

Lazarus Subgroup Targeting Apple Devices with New RustBucket macOS Malware

By Ravie Lakshmanan
A financially-motivated North Korean threat actor is suspected to be behind a new Apple macOS malware strain called RustBucket. "[RustBucket] communicates with command and control (C2) servers to download and execute various payloads," Jamf Threat Labs researchers Ferdous Saljooki and Jaron Bradley said in a technical report published last week.  The Apple device management company attributed it
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