Microsoft revoked 200+ certificates used by Vanilla Tempest to sign fake Teams installers spreading Oyster backdoor and Rhysida ransomware. Microsoft revoked over 200 certificates used by the cybercrime group Vanilla Tempest (aka VICE SPIDER and Vice Society) to sign fake Teams installers spreading the Oyster backdoor and Rhysida ransomware. The threat actor has been active […]
Hackers exploit Cisco SNMP flaw CVE-2025-20352 in “Zero Disco” attacks to deploy Linux rootkits on outdated systems, researchers report. Trend Micro researchers disclosed details of a new campaign, tracked as Operation Zero Disco, that exploited a recently disclosed security flaw impacting Cisco IOS Software and IOS XE Software to deploy Linux rootkits on older, unprotected […]
Resecurity’s new report details how the Qilin RaaS group relies on global bulletproof hosting networks to support its extortion operations. The following new report by Resecurity will explore the Qilin ransomware-as-a-service (RaaS) operation’s reliance on bullet-proof-hosting (BPH) infrastructures, with an emphasis on a network of rogue providers based in different parts of the world. Qilin […]
A botnet of 100K+ IPs from multiple countries is attacking U.S. RDP services in a campaign active since October 8. GreyNoise researchers uncovered a large-scale botnet that is targeting Remote Desktop Protocol (RDP) services in the United States starting on October 8. The company discovered the botnet after detecting an unusual spike in Brazilian IP […]
The Astaroth banking Trojan uses GitHub to host malware configs, evade C2 takedowns and stay active by pulling new settings from the platform. McAfee discovered a new Astaroth campaign using GitHub repositories to host malware configurations. This allows attackers to evade takedowns by pulling fresh configs from GitHub whenever C2 servers are shut down, ensuring […]
Google and Mandiant link Oracle EBS extortion emails to known July-patched flaws and a likely zero-day, CVE-2025-61882. Google Threat Intelligence and Mandiant analyzed the Oracle E-Business Suite extortion campaign, revealing the use of malware. Attackers exploited July-patched EBS flaws and likely a zero-day (CVE-2025-61882), sending extortion emails to company executives. In early October, Google Mandiant […]
Stealit malware abuses Node.js SEA and Electron to spread via fake game and VPN installers shared on Mediafire and Discord. Fortinet FortiGuard Labs researchers spotted Stealit malware campaign abusing Node.js Single Executable Application (SEA) and sometimes Electron to spread via fake game and VPN installers on Mediafire and Discord. Fortinet uncovered the campaign while investigating […]
Security Affairs Malware newsletter includes a collection of the best articles and research on malware in the international landscape Malware Newsletter Ransomware and Cyber Extortion in Q3 2025 Investigating active exploitation of CVE-2025-10035 GoAnywhere Managed File Transfer vulnerability XWorm V6: Exploring Pivotal Plugins ClayRat: A New Android Spyware Targeting Russia Security Evaluation of Android apps […]
RondoDox botnet exploits 56 known flaws in over 30 device types, including DVRs, CCTV systems, and servers, active globally since June. Trend Micro researchers reported that the RondoDox botnet exploits 56 known flaws in over 30 device types, including DVRs, NVRs, CCTV systems, and web servers, active globally since June. Experts noted that the latest […]
ClayRat Android spyware targets Russian users via fake Telegram channels and phishing sites posing as popular apps like WhatsApp and YouTube. The ClayRat Android spyware campaign targets Russian users via fake Telegram channels and phishing sites posing as popular apps like Google Photos, WhatsApp, TikTok, YouTube. Zimperium named the spyware ClayRat after its C2 server, […]