During our daily tracking and analysis routine at Sekoia TDR team (Threat Detection & Research), we have been monitoring an attacker infrastructure internally called “Cloudflare tunnel infrastructure to deliver multiple RATs”. This infrastructure is used by several actors to host…
Tag: Sekoia.io Blog
Detecting Multi-Stage Infection Chains Madness
During our daily tracking and analysis routine at Sekoia TDR team (Threat Detection & Research), we have been monitoring an attacker infrastructure internally called “Cloudflare tunnel infrastructure to deliver multiple RATs”. This infrastructure is used by several actors to host…
Interlock ransomware evolving under the radar
Introduction Interlock is a ransomware intrusion set first observed in September 2024 that conducts Big Game Hunting and double extortion campaigns. Interlock cannot be classified as a “Ransomware-as-a-Service” (RaaS) group, as no advertisements for recruiting affiliates or information about affiliates…
Interlock ransomware evolving under the radar
Introduction Interlock is a ransomware intrusion set first observed in September 2024 that conducts Big Game Hunting and double extortion campaigns. Interlock cannot be classified as a “Ransomware-as-a-Service” (RaaS) group, as no advertisements for recruiting affiliates or information about affiliates…
The evolution of the AI SOC: From Hype to Hyper
At CES in January 2025, Nvidia CEO Jenson Huang stood before the audience and described the direction of travel in Artificial Intelligence; The Sekoia platform has always been at the bleeding edge of each AI wave, empowering SOC teams to…
From Contagious to ClickFake Interview: Lazarus leveraging the ClickFix tactic
This post was originally distributed as a private FLINT report to our customers on 21 March 2025. Introduction In March 2025, Bybit, an UAE-based crypto exchange platform, was targeted by Lazarus, a state-sponsored intrusion set attributed to the Democratic People’s…
From Contagious to ClickFake Interview: Lazarus leveraging the ClickFix tactic
This post was originally distributed as a private FLINT report to our customers on 21 March 2025. Introduction In March 2025, Bybit, an UAE-based crypto exchange platform, was targeted by Lazarus, a state-sponsored intrusion set attributed to the Democratic People’s…
ClearFake’s New Widespread Variant: Increased Web3 Exploitation for Malware Delivery
ClearFake is a malicious JavaScript framework deployed on compromised websites to deliver malware through the drive-by download technique. When it first emerged in July 2023, the injected code was designed to display a fake web browser download page, tricking users…
ClearFake’s New Widespread Variant: Increased Web3 Exploitation for Malware Delivery
Introduction ClearFake is a malicious JavaScript framework deployed on compromised websites to deliver malware through the drive-by download technique. When it first emerged in July 2023, the injected code was designed to display a fake web browser download page, tricking…
Detection engineering at scale: one step closer (part three)
Following our first article explaining our detection approach and associated challenges, the second one detailing the regular and automated actions implemented through our CI/CD pipelines, we will now conclude this series by presenting the continuous improvement loop that allows us…