DARK PROJECT ransomware affiliates posted three new victims on August 4, 2026: Reid Electric Service (energy sector), TSC Logistics (transportation), and Long-Lewis Automotive Group. The attack pattern is textbook mid-market opportunistic targeting — unpatched edge devices, exploited remote access tools, and a 5–14 day dwell time from initial access to encryption.
Security Arsenal’s analysis identifies the likely initial access vectors: CVE-2026-50751 (Check Point VPN gateway authentication bypass), CVE-2024-1708 (ConnectWise ScreenConnect path traversal to RCE), and exposed RDP. All three are CISA KEV entries. All three are exactly the kind of vulnerability that mid-market IT teams know they need to patch but can’t afford the downtime to fix immediately.
The electrical contractor can’t reboot their VPN gateway during a service contract. The dealership can’t take down ScreenConnect while remote techs are supporting 12 locations. So the patch gets delayed, and the evildoers get in.
But here’s the thing: initial access is not the same as successful ransomware deployment.
The Payload Still Has to Land
Even after exploiting the VPN gateway or the RMM tool, the attacker has to write files to disk. The ransomware binary doesn’t materialize out of thin air. PsExec doesn’t magically appear in C:\Windows\Temp. Rclone doesn’t install itself for data exfiltration. Every one of those tools is a file write operation.
FileSure Defend operates at the Windows kernel level via a filter driver. It intercepts file operations before they complete. If a program that isn’t authorized to write executables tries to write an executable, the operation is blocked and logged.
The article’s detection content focuses on post-execution indicators: PsExec lateral movement, vssadmin shadow copy deletion, mass file renaming during encryption. Those are all useful for alerting. But if you block the payload write in the first place, you never get to the lateral movement phase.
A Rule That Would Have Stopped This
Here’s a FileSure rule configuration that prevents ransomware payload delivery:
File name filter: *.exe, *.dll, *.bat, *.ps1, *.vbs
Operations: Write, Create
Drive type: Hard drives, Network drives
Allowed programs: Windows Installer, your approved software deployment tools (SCCM, PDQ Deploy, etc.)
Result: Deny all other programs from writing executables
When the attacker’s exploit payload tries to drop PsExec.exe or the ransomware binary, the write operation is blocked at the kernel level. The file never lands. The attack stops there.
The article notes that DARK PROJECT affiliates use Rclone, MegaCMD, and FileZilla for data exfiltration. Those programs have to be written to disk before they can exfiltrate anything. Same rule stops them.
Encryption Is Just Mass File Writes
If the payload somehow lands and executes, ransomware still has to modify files to encrypt them. The article’s Sigma rules detect mass file renaming — a hallmark of ransomware that renames files after encryption (e.g., invoice.pdf becomes invoice.pdf.darkproject).
FileSure can detect and block that pattern in real time:
File name filter: * (all files)
Operations: Write, Rename/Move
Drive type: Hard drives, Network drives
Threshold: 20 matches within 60 minutes
Result: Block further operations when threshold is exceeded
Normal user activity — saving documents, editing spreadsheets — doesn’t hit 20 file modifications per hour. Ransomware encryption modifies hundreds of files per minute. The threshold fires within seconds, and subsequent write operations are blocked. Damage is contained to the files modified before the threshold.
The Patch Dilemma Is Real
The article implies that organizations running unpatched Check Point gateways are negligent. That’s not fair. Patching edge infrastructure carries real operational risk. A botched VPN patch can lock remote workers out for hours. A failed ScreenConnect update can strand your entire remote support operation.
IT teams aren’t stupid for delaying those patches. They’re making a rational decision based on competing risks.
But if you can block the payload write regardless of whether the edge device is patched, you’ve bought yourself time. The evildoer can exploit the VPN gateway all day long — if they can’t land a binary, they can’t ransom you.
Start a free 21-day trial of FileSure Defend at bystorm.com. One server, ten workstations, fully functional. See what gets blocked in your environment.
Category: Ransomware
Tags: dark project ransomware, cve-2026-50751, check point vpn exploit, connectwise screenconnect, kernel filter driver, file system security, payload blocking, mid-market ransomware
