Greg Bailey

Analyst @HuntressLabs | Instructor @SANSInstitute | neo-hippie | grateful dad | all around nice guy

[Huntress @HuntressLabs]

On April 16, 2026, a threat actor used stolen VPN creds to pivot into a Huntress partner Windows workstation and dropped a SYSTEM-level backdoor using the Komari agent - a 4.3k-star, MIT-licensed, Go-based project on GitHub. 👇🧵

[Vaishnavi @_vmlops]

MICROSOFT OPEN-SOURCED THEIR ENTIRE SENTINEL SECURITY TOOLKIT

most teams building on azure figure out threat detection the hard way

trial and error, custom KQL, dashboards built from nothing, playbooks written by hand

nobody told them it was already done

the sentinel github repo has:

▫️ 1000+ pre-built threat detection rules
▫️ hunting queries for active threat investigation
▫️ automated response playbooks
▫️ security workbooks + dashboards
▫️ data connectors for 100s of sources

the hard part was already done

https://t.co/VHbH2pIRRe

[Huntress @HuntressLabs]

On May 5, Huntress Threat Intel Analyst Casey Smith and special guest @sherrod_im, GM of Global Threat Intel at @MsftSecIntel, are breaking down what happened, why it worked, and how defenders can fight back.

Save your spot for the live event: https://t.co/erN9CJJeXo

#MSPartner

[Huntress @HuntressLabs]

In February 2026, EvilTokens weaponized Railway to stand up token-harvesting infrastructure at machine speed.

→ AI-generated lures tailored to role and industry
→ Legit Microsoft auth flows abused by design
→ Infrastructure running on trusted tooling like AWS and Cloudflare

[Huntress @HuntressLabs]

Last week, the Huntress SOC observed Nightmare-Eclipse tooling, including BlueHammer, RedSun, and UnDefend, during a real-world intrusion investigation.

@Curity4201 breaks down the details. 🔍

Check out the full write-up: https://t.co/L04cFBqcrW

[James Northey @darkrym11]

Got to work on this with the legend @_JohnHammond. A user asked Codex to fix suspicious behaviour on their machine. Codex "solved" it, but the cryptominer kept running.

Plus: How Gen-AI noise is complicating investigations and how SOCs need to evolve.

https://t.co/DnfhV86iA1

[Huntress @HuntressLabs]

The Huntress SOC is observing the use of Nightmare-Eclipse's BlueHammer, RedSun, and UnDefend exploitation techniques.

Investigation by: @wbmmfq, @Curity4201, + @_JohnHammond 🧵👇

[Huntress @HuntressLabs]

RMM abuse surged 277% last year, making up nearly a quarter of the incidents we observed. (Huntress 2026 Cyber Threat Report).

Not because people don't care.

Because these tools are trusted by default.

Attackers noticed.

And built a playbook around it. 🧵

[Huntress @HuntressLabs]

We investigated a campaign where cybercriminals created fake OpenClaw installers on GitHub that showed up as the top AI search suggestion in Bing.

Details below. 🧵

[Huntress @HuntressLabs]

There's a dark enterprise out there growing faster than any other business on earth.

And it's your hidden competition.

On March 18, @_JohnHammond and @JimBrowning11 are exposing how cybercriminal organizations actually operate.

Save your spot: https://t.co/Cj70GExfe4

[Huntress @HuntressLabs]

Mohammad Muzahir thought he was taking a legit IT job.

Instead, he was trafficked into a scam compound and forced to defraud people under threat of violence.

What he shared with us pulls back the curtain on how the system works. ⬇️
https://t.co/GZNnYnonMg

[Huntress @HuntressLabs]

Coming up on #TradecraftTuesday, we're breaking down AppDomainManager Injection, a technique cybercriminals are using to turn legit .NET binaries into "living-off-the-land" weapons. 👀

Join us live next week to see exactly how it works: https://t.co/cQITOicQkW

[Greg Bailey @GRBail]

@VerizonSupport I need you to remove a carrier lock

[CISA Cyber @CISACyber]

CVE-2025-59287 is being actively exploited. Update Windows Server Update Services now to reduce risk of a threat actor achieving remote code execution with system privileges. See our Alert for details ➡️ https://t.co/t5xpDWjSWS #Cybersecurity

[Huntress @HuntressLabs]

⚠️ Threat actors exploiting a recent Microsoft WSUS vulnerability (CVE-2025-59287)

- Microsoft released an out-of-band update for the flaw on 10/24
✅ Apply the update as soon as possible

IOCs, examples of adversary tradecraft, and remediations: https://t.co/I3Lrh6MFIB

[Greg Bailey @GRBail]

Wait, did @MLB really put playoff baseball in the middle of the week with a 1PM start?

[Greg Bailey @GRBail]

One of the reasons I moved to @HuntressLabs is to work side-by-side with peers I respect.
https://t.co/xYD81WeSuc

[JAY🤘🏽🐻⬇️ Kings of the NORTH @Directhim]

Officially fall in Chicago 🍂

[Huntress @HuntressLabs]

Hackers not available for comment. 😌 @_JohnHammond @Nightline