The Medusa ransomware operation hit over 300 organizations in critical infrastructure sectors in the United States until February 2025. The FBI, CISA, and MS-ISAC have issued a joint advisory detailing Medusa ransomware tactics, techniques, and indicators of compromise (IOCs) based on FBI investigations as recent as February 2025. This advisory is part of the #StopRansomware […]
Mandiant researchers warn that China-linked actors are deploying custom backdoors on Juniper Networks Junos OS MX routers. In mid-2024, Mandiant identified custom backdoors on Juniper Networks’ Junos OS routers, and attributed the attacks to a China-linked espionage group tracked as UNC3886. These TINYSHELL-based backdoors had various capabilities, including active and passive access and a script to […]
The Ballista botnet is exploiting an unpatched TP-Link vulnerability, targeting over 6,000 Archer routers, Cato CTRL researchers warn. Cato CTRL researchers observed a new botnet, called Ballista botnet, which is exploiting a remote code execution (RCE) vulnerability, tracked as CVE-2023-1389 (CVSS score 8.8), in TP-Link Archer routers. The CVE-2023-1389 flaw is an unauthenticated command injection […]
Experts warn of a large-scale cryptocurrency miner campaign targeting Russian users with SilentCryptoMiner. Kaspersky researchers discovered a mass malware campaign spreading SilentCryptoMiner by disguising it as a tool to bypass internet restrictions. While investigating the increased use of Windows Packet Divert (WPD) tools by crooks to distribute malware under this pretense, the researchers spotted the […]
Security Affairs Malware newsletter includes a collection of the best articles and research on malware in the international landscape. Cellebrite zero-day exploit used to target phone of Serbian student activist One in Four Cyberattacks in 2024 Traced to Infostealers, Huntress Reports Uncovering .NET Malware Obfuscated by Encryption and Virtualization Black Basta and Cactus Ransomware Groups […]
The Akira ransomware gang exploited an unsecured webcam to bypass EDR and launch encryption attacks on a victim’s network. Cybersecurity researchers at S-RM team discovered a novel attack technique used by the Akira ransomware gang. The ransomware group used an unsecured webcam to encrypt systems within a target’s network, bypassing Endpoint Detection and Response (EDR). The […]
Mirai-based botnets are exploiting a zero-day flaw, tracked as CVE-2025-1316, in Edimax IP cameras, to achieve remote command execution. US CISA warns that multiple botnets are exploiting a recently disclosed vulnerability, tracked as CVE-2025-1316 (CVSS score of 9.8), in Edimax IC-7100 IP cameras. The issue is an Improper Neutralization of Special Elements used in an […]
Medusa ransomware has claimed nearly 400 victims since January 2023, with attacks increasing by 42% between 2023 and 2024. The Symantec Threat Hunter Team reported that the Medusa ransomware operators have claimed nearly 400 victims since January 2023. Experts observed a 42% increase in attacks carried out by the group between 2023 and 2024. Experts […]
Qilin Ransomware group claims to have breached the Ministry of Foreign Affairs of Ukraine, marking a significant cybersecurity attack. The Russian-speaking Qilin Ransomware group claims responsibility for an attack on the Ministry of Foreign Affairs of Ukraine. The group stated that it stole sensitive data such as private correspondence, personal information, and official decrees. The […]
Ransomware group Hunters International claims to have hacked Tata Technologies, threatening to leak 1.4 TB of stolen data. The Hunters International ransomware group claimed to have breached the Indian multinational technology company Tata Technologies, a Tata Motors subsidiary. The group claims the theft of 1.4 terabytes of data and is threatening to leak it. The […]