Critical Alert

CVE-2026-50751 - Critical Check Point VPN Exploit Discovered Active in the Wild. View Threat Details →

OysterLoader

OysterLoader: Multi-Stage Loader Evolves to Evade Detection and Deliver Ransomware INC Ransom Pacific Cyber Threats OysterLoader Malware Rhysida Ransomware Black Basta Ransomware BYOVD Technique Velociraptor Abuse, Storm-2603 Ransomware Crypto24, Ransomware Ransomware Payments, UK Legislation ZACROS data breach

OysterLoader: Multi-Stage Loader Evolves to Evade Detection and Deliver Ransomware

Do Son February 16, 2026

A detailed analysis by the Sekoia TDR team has shed new light on OysterLoader, a sophisticated malware...

Rhysida Ransomware Abuses Microsoft Trusted Signing to Deploy OysterLoader Via Teams Malvertising Rhysida Malvertising, Trusted Signing Abuse

Rhysida Malvertising, Trusted Signing Abuse

Rhysida Ransomware Abuses Microsoft Trusted Signing to Deploy OysterLoader Via Teams Malvertising

Do Son November 4, 2025

The Rhysida ransomware gang, previously known as Vice Society, has launched an aggressive malvertising campaign leveraging Microsoft’s...

Critical Alert 3 Active Exploits Detected Today

Critical Alert

OysterLoader: Multi-Stage Loader Evolves to Evade Detection and Deliver Ransomware

Rhysida Ransomware Abuses Microsoft Trusted Signing to Deploy OysterLoader Via Teams Malvertising