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VectraRAT is a reported malware-as-a-service (MaaS) rental platform built around a Linux control server and a native Windows implant. SOCRadar says the implant uses a proprietary binary TCP protocol on port 3308 and can exploit Windows debug-object handling to bypass a UAC prompt. Its investigation also describes remote-control and credential-collection features, but its victim counts are observations from a short period—not an estimate of the malware’s total reach.
What is VectraRAT?
VectraRAT is a reported remote access trojan sold as a rental service. A remote access trojan (RAT) gives an operator remote access to an infected device; a MaaS platform packages malware and supporting infrastructure for customers to use. SOCRadar’s STRU team described VectraRAT as a previously undocumented, full-stack service rather than a simple repackaging of a known RAT.
According to SOCRadar, the platform combines a Linux control server called VectraHub, a Windows implant, a payload builder, and Telegram support. The team reported finding live infrastructure on June 23, 2026, through an exposed directory, then investigating more than 10 servers, dozens of samples, operator-panel logs, and a Telegram conversation with the developer. SOCRadar associates the operator with the alias Vectra and reports an older Nyxel identity dating to August 2022; these are findings and attribution assessments in its report, not independently established identity claims.
Rental model
The service is described as rental-only. Dark Reading reported a subscription price of $250 per month, based on SOCRadar’s investigation. That is a reported price, not independent confirmation of a current or universally available rate.
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How does VectraRAT communicate with C2?
SOCRadar describes VectraHub as a Go control server for Linux, with a Vue 3 operator panel embedded in the binary. The Windows implant is written in native C++. The implant and hub communicate using a proprietary binary TCP protocol with a five-byte header and MessagePack payloads.
The distinction between the reported ports matters: TCP 3308 is the primary command-and-control (C2) port. Ports 8080 and 8888 are listed for the panel, while 4457 and 6667 are auxiliary ports. The reporting does not identify all of these as C2 ports.
A non-HTTP protocol may be less visible to defenses that focus narrowly on web traffic inspection, but that does not make it inherently invisible or establish that any particular defensive product will miss it. Network behavior and artifacts can change between variants, so reported indicators are starting points for investigation rather than universal signatures.
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How does the reported UAC bypass work?
Windows User Account Control (UAC) normally prompts users when an action requires elevated privileges. SOCRadar says VectraRAT uses a technique equivalent to UACME method 41, involving debug-object handling and an auto-elevated Windows process. In the reported sequence, the implant creates a debug object, detaches it, and reuses it while starting computerdefaults.exe; it then uses the elevated process context to launch its payload. The result described by the report is High Integrity execution without the usual UAC dialog.
This is a summary of behavior analyzed by SOCRadar, not a procedure for reproducing the bypass. A process relationship involving winver.exe and computerdefaults.exe, alongside unusual debug-object activity, is more useful to defenders as a correlated signal than as an isolated process-name alert.
What can VectraRAT do?
SOCRadar reports features for both interactive control and data collection. The capabilities it describes include:
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- Hidden virtual-desktop access and remote shell.
- File transfer, process enumeration, and SOCKS5 proxying.
- Keylogging and clipboard monitoring, including regex-based clipboard replacement.
- Collection of browser credentials from Chromium, Firefox, and Internet Explorer.
- Collection of active network connections and searches for
.env,.conf, and.configfiles that may contain API keys or other secrets.
SOCRadar also reports first-connection collection of browser credentials and system information. The report describes capabilities of the analyzed platform; it does not establish that every deployed sample uses every feature.
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SOCRadar reports campaigns delivering VectraRAT through Amadey and ClickFix. In the ClickFix behavior described, a fake verification page persuades a user to open the Run dialog, paste a command, and execute it. This is one reported delivery approach, not a claim that every infection uses ClickFix.
Dark Reading quotes SOCRadar researchers’ warning: “a verification page that asks someone to open the Run dialog and paste a command is never legitimate.” Treat unexpected requests to run pasted commands as suspicious, even when they appear in a verification flow.
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SOCRadar’s 2026 investigation reported 38 genuine victim sessions in less than one week. That is the count observed in the investigation, not an estimate of all infections. The team also reported that 48% of observed victim entries with relevant operating-system information involved corporate Windows editions; Dark Reading lists Enterprise, Enterprise LTSC, IoT Enterprise LTSC, and Windows Server 2025 among them. This percentage describes the report’s observed data, not the rate of corporate infection in the wider population.
The same investigation recorded seven unique victims in the United States, four in Russia, and three in Germany, as well as victims in other countries. These are observed locations in the sample, not proof of exclusive or deliberate geographic targeting.
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SOCRadar’s reported indicators and behaviors can inform hunts, but should be checked against local telemetry and treated as time-bound leads:
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- Unexpected outbound TCP connections on port 3308. Check destination, process, timing, and related host activity rather than treating the port alone as proof of infection.
- Unusual process relationships involving
winver.exeandcomputerdefaults.exe, especially when accompanied by suspicious debug-object activity or an unexpected elevation event. - The mutex
LocalVectra.Client.SingleInstanceand the temporary file%TEMP%callback.json. - Unexpected PE metadata values reported by SOCRadar: Product
Vectra, CompanyVectra, and version0.2. - Browser credential access or searches for configuration files that may contain secrets, particularly when these occur alongside suspicious remote-access or network behavior.
- ClickFix-style pages that ask a person to paste and run a command.
These artifacts come from SOCRadar’s analysis and may not persist across variants. Correlating network, process, file, and user-interaction evidence is more reliable than relying on a single port or string.
What the public reporting establishes—and what it does not
SOCRadar is the primary technical source for the architecture, protocol, UAC behavior, capabilities, indicators, and victim observations summarized here. Dark Reading and GBHackers published secondary coverage that relies substantially on SOCRadar’s investigation; their coverage is useful context, but does not amount to independent confirmation through separate sample analysis. The technical details should therefore be read as reported findings, not as a comprehensive or independently replicated assessment of every VectraRAT deployment.
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