Security researchers have examined a complex online shell script called UpdateChecker.aspx that was installed on compromised Internet Information Services (IIS) servers in response to a notable increase in cyberthreats directed at Microsoft Windows installations. This analysis stems from a follow-up…
Category: GBHackers Security | #1 Globally Trusted Cyber Security News Platform
Threat Actors Use Phishing to Target Belgian Grand Prix Fans and Teams
Cybersecurity experts have pointed to an increase in sophisticated threat actor activity following the July 27 2025 Belgian Grand Prix at Spa-Francorchamps, which takes advantage of the event’s worldwide attraction. Formula 1’s reliance on advanced telemetry systems, which process real-time…
CISA Issues Alert on PaperCut RCE Vulnerability Under Active Exploitation
The Cybersecurity and Infrastructure Security Agency (CISA) has added a critical PaperCut vulnerability to its Known Exploited Vulnerabilities (KEV) catalog, warning organizations of active exploitation attempts targeting the widely-used print management software. The vulnerability, tracked as CVE-2023-2533, represents a significant…
GitHub Outage Hits Users Globally, Core Services Unavailable
GitHub experienced a significant global outage on July 28-29, 2025, disrupting core services used by millions of developers worldwide. The incident, which lasted approximately eight hours, affected API requests, Issues, and Pull Requests functionality before being fully resolved early Tuesday…
CISA Issues Alert on Cisco Identity Services Engine Flaw Exploited in Active Attacks
The Cybersecurity and Infrastructure Security Agency (CISA) has issued a critical security alert regarding severe vulnerabilities in Cisco’s Identity Services Engine (ISE) that are being actively exploited by threat actors. The agency added two critical injection vulnerabilities to its Known…
PoC Exploit Published for Actively Exploited Cisco Identity Services Engine Flaw
Security researchers have published a detailed proof-of-concept exploit for a critical vulnerability in Cisco Identity Services Engine (ISE) that allows attackers to achieve remote code execution without authentication. The flaw, tracked as CVE-2025-20281, affects the widely-deployed network access control platform…
UNC3886 Exploits Multiple 0-Day Bugs in VMware vCenter, ESXi, and Fortinet FortiOS
The advanced persistent threat group UNC3886 has escalated its sophisticated cyber espionage campaign by exploiting multiple zero-day vulnerabilities across critical infrastructure platforms, including VMware vCenter, ESXi hypervisors, and Fortinet FortiOS systems. This revelation comes as Singapore’s Coordinating Minister for National…
Aeroflot Hit by Year‑Long Cyber Operation That Allegedly Wiped 7,000 Servers
Russia’s flagship carrier Aeroflot is reeling from a devastating cyberattack that pro-Ukraine hacking groups claim wiped approximately 7,000 servers and stole over 20 terabytes of sensitive data during a year-long clandestine operation. The airline was forced to cancel dozens of…
ArmouryLoader Bypasses Security Protections to Inject Malicious Code
ArmouryLoader and other malicious code loaders have become essential tools for introducing Trojan-type payloads into hacked systems in the ever-changing world of cyberattacks. First identified in 2024, ArmouryLoader exploits the ASUS Armoury Crate software by hijacking its export functions, such…
ToolShell: Uncovering Five Critical Vulnerabilities in Microsoft SharePoint
Security researchers from Kaspersky have detailed a sophisticated exploit chain dubbed “ToolShell,” actively targeting on-premise Microsoft SharePoint servers worldwide. The campaign, which began widespread exploitation leverages an unauthenticated remote code execution (RCE) chain involving CVE-2025-49704 and CVE-2025-49706, enabling attackers to…