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Posts by Nicolas Caproni

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🇷🇺 French NGO Reporters Without Borders targeted by #Calisto in recent campaign

Sekoia #TDR analysed a recent #Calisto (aka #ColdRiver #Star Blizzard) spear-phishing campaign aimed at Reporters sans frontières and other #Ukraine-supporting organisations.

blog.sekoia.io/ngo-reporter...

4 months ago 5 4 1 0
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Histoire et dissection du 𝑚𝑎𝑙𝑤𝑎𝑟𝑒 ou chargeur malveillant 🇷🇺 #Latrodectus par Pierre Le Bourhis @sekoia.io à #UYBHYS25
@uybhys.bsky.social

5 months ago 4 2 1 0
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#TDR analysts dig into a modus operandi targeting the hospitality industry and the related cybercrime ecosystem that facilitates #phishing and #fraud campaigns.

blog.sekoia.io/phishing-cam...

5 months ago 5 3 1 0
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After our initial #PolarEdge #botnet write-up, we’re happy to announce the second part: “Defrosting PolarEdge’s Backdoor,” a full technical deep-dive into its TLS-based implant.

blog.sekoia.io/polaredge-ba...

5 months ago 2 3 1 0
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Technical Threat Researcher – Sekoia.io – Permanent contract – Fully-remote Sekoia.io is looking for a Technical Threat Researcher!

Je recherche un Threat Researcher pour l’équipe TDR de @sekoia.io !

Vous aimez faire des règles #Sigma et #Yara ? Vous adorez pivoter et traquer les infrastructures (C2) d’attaques des cybercriminels ?

Alors cette offre d’emploi est faite pour vous !

www.welcometothejungle.com/en/companies...

6 months ago 2 1 0 0
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Key takeaways:

✉️ API exploitation: attackers leverage an exposed /cgi endpoint to push malicious SMS without authentication
🌐 Scale of exposure: over 18,000 routers accessible on the internet; 572 confirmed vulnerable

6 months ago 1 1 1 0
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📱 Silent Smishing: The Hidden Abuse of Cellular Router APIs

Our latest #CTI investigation from Sekoia #TDR team uncovers a novel #smishing vector abusing Milesight industrial cellular router APIs to send phishing #SMS at scale.

blog.sekoia.io/silent-smish...

6 months ago 6 4 1 0
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🐻 #APT28 – Operation Phantom Net Voxel: deep-dive into the latest spear-phishing campaign targeting Ukrainian military administrative staff.

blog.sekoia.io/apt28-operat...

6 months ago 2 2 1 1
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[Threat investigation alert 🚨] Predators for Hire: A Global Overview of Commercial Surveillance Vendors

➡️ blog.sekoia.io/predators-fo...

7 months ago 2 4 1 0
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🔥 Hot summer, sizzling crypto... and scammers turning up the heat 🔥

Back in March, Sekoia #TDR team published a deep-dive report on a #Lazarus cluster we dubbed #ClickFake Interview, leveraging the #ClickFix technique in their #ContagiousInterview campaign.

8 months ago 1 1 1 0
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You can find the phishing kit sheets on our blog: blog.sekoia.io/global-analy...

And on our Community GitHub: github.com/SEKOIA-IO/Co...

9 months ago 1 2 0 0
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These sheets aim to assist SOC analysts in detecting and investigating #AitM #phishing compromises by offering context, technical details, infrastructure overview, detection opportunities, and more.

All are available in the PDF report and our Community GitHub.

9 months ago 1 2 1 0
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A few weeks ago, we published our global analysis of Adversary-in-the-Middle #phishing threats, providing actionable intelligence on multiple #AitM phishing kits.

This report includes 11 sheets covering the most widespread #AitM phishing kits as of Q1 2025.

9 months ago 5 2 1 0
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📝 Our latest #TDR report delivers an in-depth analysis of Adversary-in-the-Middle (#AitM) #phishing threats - targeting Microsoft 365 and Google accounts - and their ecosystem.

This report shares actionable intelligence to help analysts detect and investigate AitM phishing.

9 months ago 10 7 1 0
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The Sharp Taste of Mimo'lette: Analyzing Mimo’s Latest Campaign targeting Craft CMS Analysis of the CVE-2025-32432 compromise chain by Mimo: exploitation, loader, crypto miner, proxyware, and detection opportunities.

🧀 The Sharp Taste of #Mimo’lette: Analyzing Mimo’s Latest Campaign targeting #Craft CMS

blog.sekoia.io/the-sharp-ta...

10 months ago 3 1 0 0
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ViciousTrap - Infiltrate, Control, Lure: Turning edge devices into honeypots en masse. Discover ViciousTrap, a newly identified threat who turning edge devices into honeypots en masse targeting

🪤 Sekoia #TDR's new exclusive research uncovers the #ViciousTrap, a honeypot network deployed on compromised edge devices.

blog.sekoia.io/vicioustrap-...

10 months ago 4 2 0 0
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Our new report describes one of the latest observed infection chains (delivering #AsyncRAT) relying on the #Cloudflare tunnel infrastructure and the attacker’s #TTPs with a principal focus on detection opportunities.

blog.sekoia.io/detecting-mu...

11 months ago 2 1 0 0
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Since the apparition of the #Interlock ransomware, the Sekoia #TDR team observed its operators evolving, improving their toolset (#LummaStealer and #BerserkStealer), and leveraging new techniques such as #ClickFix to deploy the ransomware payload.

blog.sekoia.io/interlock-ra...

11 months ago 2 5 0 1
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Pour accélérer son développement, Sekoia.io lève 26 M€ - Le Monde Informatique Après un premier tour de table de 35 M€, Sekoia.io annonce une seconde levée de fonds de 26 M€. Ce financement va servir à l'éditeur de...

Pour accélérer son développement, @sekoia.io lève 26 M€

www.lemondeinformatique.fr/actualites/l...

1 year ago 2 1 0 0
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🎉 It's not about a CTI investigation or a Detection Engineering topic, but today we are happy to announce that Sekoia.io has raised €26m!
www.sekoia.io/en/presse/se...

1 year ago 4 1 0 0
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Retrouvez moi toute la journée au Forum INCYBER Europe (#FIC2025) pour Sekoia.io ! Rendez-vous stand #A17 pour échanger !

1 year ago 2 0 0 0
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🇰🇵 Sekoia #TDR team investigated a malicious campaign that employs fake job interview websites to deliver backdoors on Windows and macOS - #GolangGhost using #ClickFix tactic. Dubbed #ClickFake Interview, this campaign has been attributed to #Lazarus APT

blog.sekoia.io/clickfake-in...

1 year ago 5 2 0 0
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The conclusion (part three) of our series on #DetectionEngineering is finally here! buff.ly/dijB0fy

1 year ago 3 1 0 0
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#ClearFake variant is now spreading #Rhadamanthys Stealer via #Emmenhtal Loader.

cc @plebourhis.bsky.social @sekoia.io

1. ClearFake framework is injected on compromised WordPress and relies on EtherHiding

2. The #ClickFix lure uses a fake Cloudflare Turnstile with unusual web traffic

⬇️

1 year ago 3 2 2 0
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Using our #honeypots, we uncovered an unreported #botnet that has been operational since at least the end of November 2023. This #PolarEdge botnet has been focusing on #edge devices, particularly those made by #Cisco, #Asus, #QNAP, and #Synology.

https://buff.ly/4ibOEo8

1 year ago 6 4 0 0
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Cyber threats impacting the financial sector: focus on the main actors

We're thrilled to announce the release of the latest strategic report by Sekoia #TDR. This analysis highlights key cyber threats to the #financial sector in 2024.

https://buff.ly/3D3IZl7

1 year ago 5 2 0 1
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Detection engineering at scale: one step closer (part two) Discover the power of detection engineering and how it can help scale your cybersecurity projects efficiently.

🔍 Large-scale detection engineering: part two! 🚀

In this article, we explore an innovative approach that transforms the execution of automated actions via CI/CD pipelines, enabling effective scaling and alignment with developer and DevOps practices.

1 year ago 3 1 0 0
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Sr Technical Threat Researcher - Sekoia.io - CDI - Télétravail total Sekoia.io recrute un(e) Sr Technical Threat Researcher !

🚨To strengthen the #investigation and #detection capabilities of the Sekoia.io Threat Detection & Research (TDR) team, we are looking for a Senior Technical Threat Researcher!

www.welcometothejungle.com/fr/companies...

#CTI #DetectionEngineering

1 year ago 5 4 0 0
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TDR analysts analysed the supply chain attack targeting Chrome browser extensions, which potentially affected hundreds of thousands of end users in December 2024.

https://buff.ly/4auQ0HN

1 year ago 8 4 1 1
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Around 1,000 malicious domains are hosting webpages impersonating Reddit and WeTransfer, redirecting users to download password-protected archives

These archives contain an AutoIT dropper, we internally named #SelfAU3 Dropper at @sekoia.io, which executes #Lumma Stealer

IoCs ⬇️

1 year ago 9 6 2 0