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The DFIR Report @thedfirreport.bsky.social · 12d

DFIR Challenge Weekend Recap!

The challenge is complete! A massive thank you to everyone who participated in our latest DFIR Challenge!

Big shoutout to the top finishers who untangled the whole thing:

🥇 Jason Phang Vern Onn
🥈 Marko Yavorskyi
🥉 Bohdan Hrondzal

The DFIR Report @thedfirreport.bsky.social · 13d

Report: thedfirreport.com/2025/09/29/f...

The DFIR Report @thedfirreport.bsky.social · 13d

🌟New report out today!🌟

From a Single Click: How Lunar Spider Enabled a Near Two-Month Intrusion

Analysis/reporting completed by @RussianPanda, Christos Fotopoulos, Salem Salem, reviewed by @svch0st.

Audio: Available on Spotify, Apple, YouTube and more!

Report:⬇️

The DFIR Report @thedfirreport.bsky.social · 18d

Report: thedfirreport.com/2024/12/02/t...
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The DFIR Report @thedfirreport.bsky.social · 18d

"Once the victim uncompressed the zip, they clicked the Windows Shortcut file John-_Shimkus.lnk which executed the infection flow.

Of note, the image 2.jpg that was alongside the payload in the .zip was not used by the malware. We assess that it was likely used to “pad” the..."

The DFIR Report @thedfirreport.bsky.social · 19d

Report: thedfirreport.com/2025/09/08/b...
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The DFIR Report @thedfirreport.bsky.social · 19d

"Two of the binaries observed in this attack were masquerading as products from well-known and reputable security vendors.

The first binary, GT_NET.exe is associated with Grixba, a custom data-gathering tool used by the Play ransomware group. Its metadata was crafted to..."

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The DFIR Report @thedfirreport.bsky.social · 21d

Report: thedfirreport.com/2025/03/31/f...
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The DFIR Report @thedfirreport.bsky.social · 21d

"The Zoom installer was created using Inno Setup, a free installer for Windows programs, and served as the delivery mechanism for a multi-stage malware deployment and execution chain.

The trojanized installer was a downloader, more publicly known as “d3f@ckloader”, and is..."

The DFIR Report @thedfirreport.bsky.social · 22d

Report: thedfirreport.com/2025/01/27/c...
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The DFIR Report @thedfirreport.bsky.social · 22d

"On the eleventh day, the threat actor began a ransomware deployment. This final stage included the preparatory steps to deploy across the network. The process started with the execution of a batch script named SETUP.bat, which created a staging file share..."

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The DFIR Report @thedfirreport.bsky.social · 22d

Report: thedfirreport.com/2025/05/19/a...
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The DFIR Report @thedfirreport.bsky.social · 22d

"On the second day of the intrusion, Confluence was exploited multiple times over a roughly twenty-minute period from the IP address 109.160.16[.]68. No link was found from this IP to the other activity detailed so far in the report leading us to assess this was likely a ..."

thedfirreport.com/2025/09/08/b...

The DFIR Report @thedfirreport.bsky.social · Sep 8

DFIR Labs - Subscription Plans

The DFIR Report @thedfirreport.bsky.social · Sep 8

🌟New report out today!🌟

Blurring the Lines: Intrusion Shows Connection With Three Major Ransomware Gangs

Analysis and reporting completed by @r3nzsec, @EncapsulateJ, @rkonicekr, & Adam Rowe

Audio: Available on Spotify, Apple, YouTube and more!

Report:⬇️

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The DFIR Report @thedfirreport.bsky.social · Sep 3

Get access to it through:

- Your subscription: dfirlabs.thedfirreport.com/subscription...
- Via one-time purchase from our store here: dfirlabs.thedfirreport.com/store

#dfir #CyberSecurity

The DFIR Report @thedfirreport.bsky.social · Sep 3

🚨 New Lab Just Released: Specter’s Domain Heist – Private Case #35218

This lab is based on a detailed intrusion from our private case repositories 👇

📥 Workstation Compromise ➡️ Persistent Access ➡️ Discovery➡️ Privilege Escalation ➡️ Lateral Movement ➡️ Data Exfil

Link 👇

From Bing Search to Ransomware: Bumblebee and AdaptixC2 Deliver Akira

The DFIR Report @thedfirreport.bsky.social · Aug 5

🚨 Search for software, end up getting ransomware!

SEO-driven #Bumblebee malware campaigns observed throughout July led to domain compromise, data theft & #Akira ransomware. Tools included #AdaptixC2 & #Netscan.

thedfirreport.com/2025/08/05/f...

Overview Bumblebee malware has been an initial access tool used by threat actors since late 2021. In 2023 the malware was first reported as using SEO poisoning as a delivery mechanism. Recently in …

DFIR Labs - Subscription Plans

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The DFIR Report @thedfirreport.bsky.social · Jul 23

🚨 New: DFIR Labs Pro Tier is here!

🎯 Smarter investigations with:
• 🧠 AI Timeline Builder (w/ IOCs + notes)
• ⏱️ More lab time + extension credits
• 📊 Analytics dashboard w/ tailored insights

🔗 Dive in: dfirlabs.thedfirreport.com/subscription...

KongTuke FileFix Leads to New Interlock RAT Variant

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The DFIR Report @thedfirreport.bsky.social · Jul 14

🚨 New Interlock RAT variant spotted!

Researchers from The DFIR Report, in partnership with Proofpoint, have identified a new and resilient variant of the Interlock ransomware group’s remote access trojan (RAT).

🔎 thedfirreport.com/2025/07/14/k...

#DFIR #KongTuke #InterlockRAT #FileFix

Researchers from The DFIR Report, in partnership with Proofpoint, have identified a new and resilient variant of the Interlock ransomware group’s remote access trojan (RAT). This new malware,…

DFIR Labs - Digital Forensics Challenge - Enterprise Edition

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Reposted by The DFIR Report

The DFIR Report @thedfirreport.bsky.social · Jun 25

📢DFIR Labs Enterprise Forensics Challenge📢

🔹 When: Aug 30, 2025 (14:00-18:00 UTC)
🔹 SIEM: Azure Log Analytics, Elastic, or Splunk
🔹 Teams: 2-3 analysts
🔹 Prizes: Top team wins! 🏆

Limited spots available.

Register Now: dfirlabs.thedfirreport.com/dfirchalleng...

Hide Your RDP: Password Spray Leads to RansomHub Deployment

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The DFIR Report @thedfirreport.bsky.social · Jun 30

🌟New report out today!🌟

Hide Your RDP: Password Spray Leads to RansomHub Deployment

Analysis and reporting completed by @tas_kmanager, @iiamaleks and UC2

🔊Audio: Available on Spotify, Apple, YouTube and more!

thedfirreport.com/2025/06/30/h...

Key Takeaways Initial access was via a password spray attack against an exposed RDP server, targeting numerous accounts over a four-hour period. Mimikatz and Nirsoft were used to harvest credential…