The SideWinder advanced persistent threat group has emerged with a sophisticated new attack methodology that leverages ClickOnce applications to deploy StealerBot malware against diplomatic and governmental targets across South Asia. In September 2025, security researchers detected a targeted campaign affecting institutions in Sri Lanka, Pakistan, Bangladesh, and diplomatic missions based in India. The attacks represent […] The post SideWinder Hacking Group Uses ClickOnce-Based Infection Chain to Deploy StealerBot Malware appeared first on Cyber Security News.

The Advanced Persistent Threat group MuddyWater, widely recognized as an Iran-linked espionage actor, has orchestrated a sophisticated phishing campaign targeting more than 100 government entities and international organizations across the Middle East, North Africa, and beyond. The operation, which became active in mid-August 2025, represents a significant escalation in the group’s tradecraft, introducing version 4 […] The post MuddyWater Using New Malware Toolkit to Deliver Phoenix Backdoor Malware to International Organizations appeared first on Cyber Security News.

A sophisticated spearphishing campaign has emerged targeting humanitarian organizations and Ukrainian government agencies, leveraging weaponized PDF attachments and fake Cloudflare verification pages to distribute a dangerous WebSocket-based remote access trojan. The operation, first uncovered in early October 2025, demonstrates a remarkable level of operational planning and infrastructure compartmentalization, with the threat actors maintaining their campaign […] The post New PhantomCaptcha RAT Weaponized PDFs to Deliver Malware Using ‘ClickFix’-Style Cloudflare Captcha Pages appeared first on Cyber Security News.

Email phishing attacks have reached a critical inflection point in 2025, as threat actors deploy increasingly sophisticated evasion techniques to circumvent traditional security infrastructure and user defenses. The threat landscape continues to evolve with the revival and refinement of established tactics that were once considered outdated, combined with novel delivery mechanisms that exploit gaps in […] The post Threat Actors Advancing Email Phishing Attacks to Bypass Security Filters appeared first on Cyber Security News.

Remcos, a commercial remote access tool marketed as legitimate surveillance software, has become the leading infostealer in malware campaigns during the third quarter of 2025, accounting for approximately 11 percent of detected cases. In a notable shift from traditional deployment methods, threat actors are now weaponizing this remote control and surveillance platform through sophisticated fileless […] The post New Fileless Remcos Attacks Bypassing EDRs Malicious Code into RMClient appeared first on Cyber Security News.

Cybersecurity researchers have identified a sophisticated campaign where threat actors are leveraging compromised credentials to infiltrate Azure Blob Storage containers, targeting organizations’ critical code repositories and sensitive data. This emerging threat exploits misconfigured storage access controls to establish persistence and exfiltrate valuable intellectual property. The attack vector represents a significant shift in how threat actors […] The post Threat Actors Attacking Azure Blob Storage to Compromise Organizational Repositories appeared first on Cyber Security News.

A sophisticated information-stealing malware written in Golang has emerged, leveraging blockchain technology to establish covert command-and-control channels. SharkStealer represents a significant evolution in malware design, utilizing the BNB Smart Chain Testnet as a resilient dead-drop resolver for its C2 infrastructure. This novel approach demonstrates how threat actors exploit Web3 technologies to evade traditional detection mechanisms […] The post SharkStealer Using EtherHiding Pattern to Resolves Communications With C2 Channels appeared first on Cyber Security News.

Microsoft 365 Exchange Online’s Direct Send feature, originally designed to enable legacy devices and applications to send emails without authentication, has become an exploitable pathway for cybercriminals conducting sophisticated phishing and business email compromise attacks. The feature allows multifunction printers, scanners, and older line-of-business applications to transmit messages by bypassing rigorous authentication and security checks, […] The post Hackers Abuse Microsoft 365 Exchange Direct Send to Bypass Content Filters and Harvest Sensitive Data appeared first on Cyber Security News.

The Bitter APT group, also tracked as APT-Q-37 and known in China as 蔓灵花, has launched a sophisticated cyberespionage campaign targeting government agencies, military installations, and critical infrastructure across China and Pakistan. The threat actor has deployed weaponized Microsoft Office documents that exploit a previously unknown zero-day vulnerability in WinRAR archive software to install custom […] The post Bitter APT Hackers Exploit WinRAR Zero-Day Via Weaponized Word Documents to Steal Sensitive Data appeared first on Cyber Security News.