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Threat reporting has highlighted phishing-led intrusions in which attackers use legitimate remote monitoring and management (RMM) software to gain and retain access to victim environments. The approach can obscure malicious activity within approved administrative tooling, creating a material visibility gap for security teams and enabling adversaries to operate without deploying obviously malicious remote-access malware.
The activity includes a U.S.-targeted phishing campaign and broader organized-cybercrime tradecraft that pair social engineering with RMM abuse. Organizations should treat unexpected RMM installation, new unattended-access configurations, and remote-control sessions initiated after phishing activity as high-priority signals; enforce application allowlisting and least privilege for RMM tools; and require strong authentication, centralized logging, and alerting for all remote-management access.
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2 events from the most recent confirmed update back to the earliest known activity.
Huntress identified a second August phishing incident delivered through AT&T Office@Hand that used the same fake Adobe Reader update lure. Two unauthorized ScreenConnect instances were installed, and one session ran HideUL.exe; although Microsoft Defender detected some activity, a rogue client installed before Huntress contained the attack.
Huntress detected a phishing attack in August in which a victim was sent from a fake CAPTCHA page to a browser-in-the-browser Adobe Reader lure. The fake installer deployed two rogue ScreenConnect clients and ran HideCursor.exe before Huntress stopped the attack.
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A phishing campaign active since January 2026 has targeted victims in 46 countries—45% of observed activity involved the United States—using tax forms, Social Security notices, invoices, VAT, shipping, Adobe PDF, and shared-file lures. Victims are sent to short-lived pages hosted on services including Vercel, Netlify, Amazon S3, and DigitalOcean Spaces, or on compromised sites, then prompted to download password-protected ZIP archives. The archives use a VBS-to-PowerShell chain to retrieve signed installers for legitimate remote monitoring and management (RMM) products, giving operators interactive access without relying on conventional malware. The operators rotate among GoTo Resolve, LogMeIn Rescue, ScreenConnect, ConnectWise, and ITarian, limiting the value of product-specific blocking. Researchers identified 425 delivery-kit URLs across 240 hosts between February 5 and July 29, with 94% of hosts remaining live for only one day; stable kit artifacts included `fmtt` font files, `font1.woff2`, `icons8-microsoft-word-94.png`, and a `secure.html`-to-ZIP delivery chain. Organizations should detect and investigate unauthorized RMM deployments, particularly script-initiated PowerShell downloads of MSI installers, newly installed support software, and password-protected ZIP files delivered through phishing pages.
Aug 26, 2026
Threat researchers reported multiple phishing-driven intrusions in which attackers impersonate trusted brands and agencies to trick victims into installing legitimate remote monitoring and management (RMM) software for persistent access. In **Operation DoppelBrand**, financially motivated actor **GS7** spoofed Fortune 500 financial and technology brands (including **Wells Fargo** and **USAA**) using more than **150** lookalike domains to harvest credentials and exfiltrate data via attacker-controlled **Telegram bots**; researchers also identified nearly **200** additional domains with short registration terms, automated SSL, wildcard DNS, and brand-specific subdomains supporting the campaign. Separately, Forcepoint X-Labs described a wave of emails impersonating the **U.S. Social Security Administration** that delivers an attached `.cmd` script to weaken Windows defenses and enable silent installation of **ConnectWise ScreenConnect**. The script checks/elevates privileges, disables **Windows SmartScreen** via registry changes, removes **Mark-of-the-Web**, and uses **Alternate Data Streams (ADS)** for stealth before installing an MSI and configuring ScreenConnect (via `System.config`) to beacon to an attacker-controlled server (reported as `dof-connecttop` on port `8041`). Both activity sets highlight a recurring tradecraft pattern: **brand impersonation + scripted defense evasion + abuse of legitimate RMM tooling** (e.g., *LogMeIn Resolve*, *ScreenConnect*) to gain remote control and facilitate follow-on theft or persistence.
Jun 29, 2026Red Canary and Zscaler report that attackers are using highly convincing phishing lures to install remote monitoring and management (RMM) tools like ITarian and Atera. These tools, typically used by IT administrators, are being abused to grant attackers admin-level access for malware and ransomware deployment. Lures include fake Chrome updates, Teams/Zoom invites, party e-cards, and government forms, making detection by employees increasingly difficult.
Jun 29, 2026