# Researchers trace malware delivery through FTP server banners

_Friday, August 21, 2026 at 7:00 AM EDT · Security · Developing · Tier 2 — Notable_

![Researchers trace malware delivery through FTP server banners — Primary](https://www.bleepstatic.com/content/hl-images/2026/05/05/hacker.jpg)

Researchers observed threat actors using FTP server banners to deliver commands for two previously undocumented Windows remote-access trojans, E4del and PINHOLE. The reported campaign begins with a ZIP archive and LNK-based infection chain, then retrieves PowerShell scripts from FTP banner responses. SOCRadar said the technique had been weaponized since early July and remained operational in August; its analysis included indicators intended to help defenders identify infrastructure and infected machines.

## Sources

- [BleepingComputer](https://www.bleepingcomputer.com/news/security/hackers-abuse-ftp-server-banners-to-deliver-new-windows-malware/)

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Canonical: https://techandbusiness.org/newswire/wTd-_J1CaFpbEp0ogGneS4
Retrieved: 2026-08-21T13:04:37.294Z
Publisher: Tech & Business (techandbusiness.org)