In October 2024, GoSecure Threat Hunters have uncovered a sophisticated phishing campaign that utilizes tactics like Attacker-in-the-Middle (AitM) and phishing to compromise user accounts through web session cookie theft. This specific method targets cloud-based file hosting applications such as Dropbox and OneDrive, compromising users by manipulating shared files and redirecting them to malicious sites where both credentials and multi-factor authentication details are stolen.
Why This Matters
The theft of web session cookies is a critical threat as it allows attackers to bypass traditional security measures and gain access to sensitive information undetected. These cookies often authenticate personal and financial details, making their theft particularly dangerous. This technique is increasingly used in targeted phishing attacks, making awareness and prevention essential.
Detection and Monitoring
GoSecure’s proactive threat hunt in October identified and intercepted phishing attempts using legitimate-looking documents, such as a DocuSign envelope, as a lure to direct victims to malicious sites. Our Threat Hunters have been vigilant in monitoring for signs of this behavior and have established new detection rules that can identify similar threats in real-time.
Recommendations
To defend against this type of attack, GoSecure recommends the following steps:
- Enable and enforce multi-factor authentication (MFA) for all cloud services.
- Educate employees about the dangers of phishing and the importance of verifying the authenticity of requests involving sensitive data or credentials.
- Utilize advanced email filtering solutions that can detect and block phishing attempts before they reach end users.
- Review and monitor sign-in logs and file access patterns for unusual activities that could indicate a breach.
Conclusion
GoSecure remains steadfast in its commitment to detect and mitigate emerging cybersecurity threats. Our MXDR service is designed to provide continuous monitoring and targeted threat detection to protect against complex threats like web session cookie theft. For more detailed information on how we’re actively addressing this issue or to enhance your defenses against such phishing attacks, contact us directly (888)-287-5858 or info@gosecure.ai.
Stay secure!
Your GoSecure Threat Hunting Team
CAS D'UTILISATION
Cyberrisques
Mesures de sécurité basées sur les risques
Sociétés de financement par capitaux propres
Prendre des décisions éclairées
Sécurité des données sensibles
Protéger les informations sensibles
Conformité en matière de cybersécurité
Respecter les obligations réglementaires
Cyberassurance
Une stratégie précieuse de gestion des risques
Rançongiciels
Combattre les rançongiciels grâce à une sécurité innovante
Attaques de type « zero-day »
Arrêter les exploits de type « zero-day » grâce à une protection avancée
Consolider, évoluer et prospérer
Prenez de l'avance et gagnez la course avec la Plateforme GoSecure TitanMC.
24/7 MXDR
Détection et réponse sur les terminaux GoSecure TitanMC (EDR)
Antivirus de nouvelle génération GoSecure TitanMC (NGAV)
Surveillance des événements liés aux informations de sécurité GoSecure TitanMC (SIEM)
Détection et réponse des boîtes de messagerie GoSecure TitanMC (IDR)
Intelligence GoSecure TitanMC
Notre SOC
Défense proactive, 24h/24, 7j/7