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LTLưu Tuấn Anhblog.fiscybersec.comOct 6 · 11 min read

CLOSEDQUORUM: When 4 AI models turn into C2 servers for Malware

Overview Imagine a system intrusion where the mastermind is not sitting in front of the screen, is not typing any C2 control commands, and is even... sleeping. Instead, the four leading commercial art

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LTLưu Tuấn Anhblog.fiscybersec.comSep 23 · 11 min read

ClickFix Browser Campaign: Embed C2 Into Google Sheets

Executive Summary What happens when the expensive EDR system is completely "blind", and the enterprise's Secure Web Gateway (SWG) happily licenses malicious traffic just because it sends to... docs.go

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LTLưu Tuấn Anhblog.fiscybersec.comAug 31 · 11 min read

TWINLOOT: When Microsoft Cloud Becomes a Hacker's "Control Center"

Imagine a nightmare scenario for every SOC team: An attacker lies deep inside the internal network for weeks, silently opening up to 128 administrative connection streams (SMB, RDP, WinRM) to move lat

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LTLưu Tuấn Anhblog.fiscybersec.comAug 20 · 8 min read

When your computer becomes a secret "transfer station" for cyber spies

Overview Imagine: an HR employee at an airline company in Pakistan receives an attractive interview invitation from a recruiting brand that seems very familiar. A video call is scheduled. But that "me

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LTLưu Tuấn Anhblog.fiscybersec.comAug 6 · 14 min read

MedusaHVNC: "Invisible Windows screen" is helping hackers bypass all surveillance eyes

What's Going On? Imagine this: you're sitting at your computer, composing emails, surfing the web, opening a bank account to check the balance. Everything is normal. No strange windows pop up. There a

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Ddark3v3iluvblue.hashnode.devSep 12, 2025 · 10 min read

C2 Mini Series : Empire to Mimikatz

PowerShell Empire → Mimikatz This blog post will be part of my mini purple team series of deploying and detecting malicious activities using various C2 infrastructures. PowerShell Empire → Mimikatz: My Lab Notes, Facepalms, and Detections Intro I use...

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CLOSEDQUORUM: When 4 AI models turn into C2 servers for Malware

ClickFix Browser Campaign: Embed C2 Into Google Sheets

TWINLOOT: When Microsoft Cloud Becomes a Hacker's "Control Center"

When your computer becomes a secret "transfer station" for cyber spies

MedusaHVNC: "Invisible Windows screen" is helping hackers bypass all surveillance eyes

C2 Mini Series : Empire to Mimikatz

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