Zero Day Wire

Zero Day Wire
GhostChat Spyware Uses Romance Scams and WhatsApp Hijacking to Target Pakistani Android Users

Threats

GhostChat Spyware Uses Romance Scams and WhatsApp Hijacking to Target Pakistani Android Users

Security researchers have uncovered a coordinated espionage campaign targeting Android users in Pakistan through a spyware operation that combines romance-themed social engineering, mobile surveillance, and WhatsApp account hijacking. ESET researchers track the Android component as GhostChat, a spyware that masquerades as a dating application while exfiltrating sensitive data and

By Zero Day Wire
ShadowHS: Fileless Linux Framework Executes Entirely from Memory for Long-Term Intrusion Operations

Threats

ShadowHS: Fileless Linux Framework Executes Entirely from Memory for Long-Term Intrusion Operations

Security researchers have uncovered a sophisticated Linux post-exploitation framework that operates entirely in memory, leaving no persistent artifacts on disk while providing operators with extensive capabilities for long-term intrusion operations. Cyble Research & Intelligence Labs tracks the activity as ShadowHS, reflecting its fileless execution model and lineage from

By Zero Day Wire
Operation Bizarre Bazaar: First LLMjacking Marketplace Monetizes Stolen AI Infrastructure Access

Threats

Operation Bizarre Bazaar: First LLMjacking Marketplace Monetizes Stolen AI Infrastructure Access

Security researchers have documented the first fully attributed criminal operation dedicated to hijacking and reselling unauthorized access to AI infrastructure at scale. Dubbed Operation Bizarre Bazaar, the campaign represents a complete LLMjacking supply chain—from initial reconnaissance to commercial marketplace monetization—operated by a threat actor known as "Hecker&

By Zero Day Wire
North Korea's LABYRINTH CHOLLIMA Splinters into Three Specialized Cyber Units

Threats

North Korea's LABYRINTH CHOLLIMA Splinters into Three Specialized Cyber Units

CrowdStrike Intelligence has reclassified LABYRINTH CHOLLIMA, the North Korean threat group behind the 2017 WannaCry ransomware attack, into three distinct operational units with specialized missions, malware, and targeting patterns. The new attribution framework recognizes GOLDEN CHOLLIMA, PRESSURE CHOLLIMA, and a narrower core LABYRINTH CHOLLIMA group as separate adversaries that emerged

By Zero Day Wire
eScan Antivirus Compromised in Supply Chain Attack, Pushes Malware Through Legitimate Updates

Breaches

eScan Antivirus Compromised in Supply Chain Attack, Pushes Malware Through Legitimate Updates

Security firm Morphisec has uncovered a supply chain compromise affecting eScan antivirus software, where attackers distributed malicious updates through the vendor's legitimate update infrastructure. Discovered on January 20, 2026, the attack targeted both enterprise and consumer editions of the MicroWorld Technologies product, deploying multi-stage malware to endpoints

By Zero Day Wire