Malware

Pierluigi Paganini October 23, 2025
Lazarus targets European defense firms in UAV-themed Operation DreamJob

North Korean Lazarus hackers targeted 3 European defense firms via Operation DreamJob, using fake recruitment lures to hit UAV tech staff. North Korea-linked Lazarus APT group (aka Hidden Cobra) launched Operation DreamJob, compromising three European defense companies. Threat actors used fake recruiter profiles to lure employees into UAV technology roles, aiming to gain access to […]

Pierluigi Paganini October 22, 2025
Russia-linked COLDRIVER speeds up malware evolution after LOSTKEYS exposure

Russia-linked COLDRIVER rapidly evolved its malware since May 2025, refining tools just days after releasing its LOSTKEYS variant, says Google. The Russia-linked hacking group COLDRIVER has been quickly upgrading its malware since May 2025, when its LOSTKEYS malware was exposed. According to Google’s Threat Intelligence Group, the hackers have been rolling out frequent updates and […]

Pierluigi Paganini October 19, 2025
SECURITY AFFAIRS MALWARE NEWSLETTER ROUND 67

Security Affairs Malware newsletter includes a collection of the best articles and research on malware in the international landscape Malware Newsletter Astaroth: Banking Trojan Abusing GitHub for Resilience  North Korea’s Contagious Interview Campaign Escalates: 338 Malicious npm Packages, 50,000 Downloads New Rust Malware “ChaosBot” Uses Discord for Command and Control  Weaponizing Discord for Command and […]

Pierluigi Paganini October 18, 2025
Winos 4.0 hackers expand to Japan and Malaysia with new malware

Winos 4.0 hackers expand from China, Taiwan to Japan, Malaysia using fake Finance Ministry PDFs to spread HoldingHands RAT malware. Threat actors behind Winos 4.0 (ValleyRAT) have expanded their attacks from China and Taiwan to Japan and Malaysia, using PDFs disguised as documents from the Finance Ministry to deliver malware. Attackers employed another remote access […]

Pierluigi Paganini October 17, 2025
Microsoft revokes 200+ certificates abused by Vanilla Tempest in fake Teams campaign

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 […]

Pierluigi Paganini October 16, 2025
Operation Zero Disco: Threat actors targets Cisco SNMP flaw to drop Linux rootkits

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 […]

Pierluigi Paganini October 15, 2025
Qilin Ransomware announced new victims

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 […]

Pierluigi Paganini October 14, 2025
Researchers warn of widespread RDP attacks by 100K-node botnet

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 […]

Pierluigi Paganini October 13, 2025
Astaroth Trojan abuses GitHub to host configs and evade takedowns

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 […]

Pierluigi Paganini October 13, 2025
Google, Mandiant expose malware and zero-day behind Oracle EBS extortion

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 […]