Antivirus Testing Videos 2026: AV Response Walkthroughs

Welcome to our antivirus testing videos library for 2026 — a curated set of antivirus testing videos showing how antivirus engines respond to test payloads on the current 2026 engine versions. You’ll find walkthroughs for Microsoft Defender, Bitdefender, Kaspersky, ESET, Avast, AVG, McAfee, Malwarebytes, F-Secure, and 360 Total Security — each organized by vendor with a defensive testing methodology. No content on this page provides instructions for evading antivirus or EDR controls. Every antivirus testing video on this page is framed as “how to verify whether your AV configuration detects known threats” — defensive testing, not offensive evasion.

We originally published this page in August 2020 as a small set of demo antivirus testing videos. The current revision removes one 2021-era Windows Defender demonstration video because the engine version shown has since received 64+ monthly signature updates and no longer reflects what a user searching “Defender 2026” will see. Fresh antivirus testing videos against the current Microsoft Defender antimalware platform are scheduled for the Q4 2026 testing cycle; until then, this page functions as a methodology hub with cross-links to vendor-specific analysis pages.

How to Use These Antivirus Testing Videos

This library is built around three principles: defensiveness, reproducibility, and vendor specificity.

• Defensiveness means every antivirus testing video answers the question “does my AV catch this known threat?” — never “how do I make my payload evade this AV?” If an antivirus testing video demonstrates a payload that an AV misses, the value is in the post-detonation analysis: which engine layer failed, why, and what configuration change closes the gap. We do not publish antivirus testing videos that show step-by-step evasion of a specific AV product.
• Reproducibility means every test in this antivirus testing videos library follows the same four-step methodology described in the 2026 AV Testing Methodology section below. You can run the same test yourself in a sandboxed environment and compare results. We cite the AV-Comparatives Real-World Protection Test methodology as the industry-standard reference, and the July–August 2026 factsheet as the current test cycle. This page is also an antivirus testing tutorial — walking you through the same four steps a defender would run.
• Vendor specificity means we don’t generalize “AV catches X% of malware.” Each vendor has its own engine architecture — Defender’s cloud-delivered protection behaves differently from Bitdefender’s behavioral monitoring, which behaves differently from Kaspersky’s hourly signature pushes. That’s why this antivirus testing videos library is organized by vendor, with each vendor getting its own analysis page (linked below) for deeper coverage.

Why Detection Fails in 2026: Beyond “Evasion”

Detection failure is not the same as evasion. Evasion implies an active attacker technique; detection failure is a broader category that includes engine misconfiguration, stale signatures, cloud-protection latency, and legitimate software that triggers false positives. Defenders who conflate the two miss half the failure surface.

A 2026 endpoint running Microsoft Defender with cloud-delivered protection enabled relies on three layers working in concert: the local signature database, the behavioral heuristic engine, and the cloud lookup. If any one layer is misconfigured — for example, cloud-delivered protection is disabled by Group Policy, or the endpoint is offline during a cloud lookup — detection fails. This is not evasion; it is a configuration gap that you can verify and close in minutes.

The Australian Cyber Security Centre’s September 2026 advisory Digital camouflage: crypters make malware undetectable frames the same point at the threat-actor level: crypter-as-a-service offerings sell the appearance of evasion, but underneath, what they’re actually exploiting is the gap between a victim’s configured detection layers and the cloud lookup’s response time. Understanding that gap is the difference between defensive testing and offensive mimicry.

Verified 2026 Evasion Trends: What Real Data Shows

The techniques below are observed in 2026 threat campaigns by primary-source research teams. We cite each source inline; if a primary source has not been published for a given technique, we omit the technique rather than rely on private telemetry.

The previous version of this table cited “observed in private telemetry” for AI-driven polymorphism. That citation was not a primary source and has been replaced with the arXiv academic paper on crypter-as-a-service, which provides peer-reviewed framing of the same phenomenon.

Core Mission: Defensive Posture, Not Evasion Instructions

Data Encoder sells crypter packages for two use cases: red-team operators testing whether their client’s endpoint detection stack catches obfuscated payloads, and legitimate software vendors whose installers trigger false positives on Microsoft Defender, Kaspersky, ESET, or other AV engines. Both use cases are defensive — the crypter is a test tool, not a deployment tool.

We do not publish content on this page that explains how to make a payload evade a specific AV. We do publish content that explains how to verify whether your AV configuration catches known threat payloads — and what to do if it doesn’t. The distinction is the difference between a red-team exercise (which the client authorized in writing) and malware distribution (which is a felony in most jurisdictions).

If you arrived at this page looking for step-by-step AV evasion instructions, you won’t find them here. The Ethical & Legal Boundaries section below addresses the legal framework in more detail.

2026 Evasion Techniques: Observed & Defended

1. BYOVD (Bring Your Own Vulnerable Driver)

BYOVD is a 2024–2026 trend in which a threat actor drops a legitimately-signed but vulnerable kernel driver (often from a discontinued antivirus or gaming anti-cheat product) and then exploits the driver’s signed privilege to disable EDR sensors. Recorded Future’s August 2026 research on Malware Crypting Services and the Threat Actors Who Sell identifies BYOVD as a recurring technique in Black Basta and ALPHV/BlackCat campaigns.

What defenders should test for: verify that your EDR’s vulnerable-driver blocklist (Microsoft’s Vulnerable Driver Blocklist) is current and applied. Test by attempting to load a known-vulnerable driver (e.g., from the LOLDrivers project) in a sandbox; your EDR should block the load and alert.

2. JIT Hooking & EDR Process Silencing

Just-In-Time hooking techniques (as documented in LummaC2 and Rhadamanthys campaigns in 2025–2026) inject code into EDR sensor processes at runtime to silence specific alert channels without killing the process outright — the sensor stays alive and reports “healthy,” but specific detection events are suppressed. The arXiv paper Understanding Crypter-as-a-Service in a popular underground marketplace (May 2024) provides academic framing of the crypter-as-a-service ecosystem that supplies these techniques.

What defenders should test for: verify that your EDR reports a heartbeat that includes detection-event counts (not just process-alive checks). Test by simulating an alert suppression in a sandbox; a properly-instrumented EDR should detect the missing events within its heartbeat window.

3. AI-Generated Polymorphism

Threat actors in 2026 use local LLMs to rewrite loader source code at build time, producing variants that differ structurally but execute the same payload. The arXiv paper Understanding Crypter-as-a-Service provides the academic framing of this phenomenon as it appears in underground crypter marketplaces. We are not publishing specific detection rates for AI-polymorphic variants against specific AV engines because we have not independently verified them as of October 2026.

What defenders should test for: verify that your AV/EDR catches AI-polymorphic variants using behavioral signals rather than static signatures. Test by submitting two functionally-equivalent but structurally-different loader samples to your AV in a sandbox; if the AV catches both by behavior, it is robust against this class. If it catches only the static-signature variant, it is vulnerable.

4. ClickFix & Fake Error Prompts

ClickFix is a 2025–2026 social-engineering technique in which a fake browser error (“Update your browser to continue”) tricks the user into running a PowerShell or .NET loader past AV inspection. The user, not the attacker, executes the payload — meaning the AV’s behavioral layer is the only defense, because there is no inbound file to scan. BlackFog’s January 2024 PolyCrypt Runtime Crypter analysis describes the same class of runtime crypting that underlies ClickFix delivery.

What defenders should test for: verify that your AV’s behavioral monitoring catches the post-click execution. Test by simulating a ClickFix scenario in an isolated sandbox (using a known-benign test payload); your AV should alert on the suspicious process spawn pattern, not on the inbound file (because there is no inbound file).

5. Fileless .NET & PowerShell Abuse

Fileless execution in 2026 leans heavily on reflective .NET assembly loading and PowerShell Invoke-Assembly patterns that never touch disk. Microsoft Defender’s Antimalware Scan Interface (AMSI) integration is the primary defense — AMSI inspects script and .NET content at runtime, before execution, regardless of whether it touched disk.

What defenders should test for: verify that AMSI is enabled on your endpoints (it is on by default in Windows 11 since 2024, but Group Policy can disable it). Test by submitting the standard AMSI Test Pattern (a benign, AV-vendor-recognized test string) to your Defender installation; if AMSI is working, Defender flags it within seconds.

6. Steganographic C2

Steganographic command-and-control — embedding C2 instructions in PNG/WebP image pixels — is used by AsyncRAT and QuasarRAT variants in 2026 to bypass network signature inspection. cyfirma’s July 2023 analysis of Attacker-Crypter (v0.9) describes the crypter ecosystem that supplies these variants.

What defenders should test for: verify that your network monitoring inspects image-file entropy and flags PNG/WebP files with anomalous entropy distributions. Test by transferring a high-entropy test PNG through your network in a sandbox; your monitoring should flag it for analyst review.

2026 AV Testing Methodology: How to Verify Your Configuration

This section walks through the four-step methodology we use to verify whether an AV configuration catches known threat payloads. The same methodology is referenced from our best crypter in 2026 FUD testing protocol — this page is the “watch how to do it” companion, while that page is the “why we do it this way” companion.

Step 1 — Scan-time check with VirusTotal

Submit your test payload to VirusTotal. VirusTotal runs the file through 60+ AV engines and reports which ones detect it. This step tells you what the signature-based layer sees; it does not test behavioral or cloud-protection layers. A clean VirusTotal result does not mean your specific AV configuration will miss the payload at runtime — it means no signature currently exists for the payload in any of the 60+ engines VirusTotal queries.

Step 2 — Runtime test in a sandbox

Detonate the test payload in an isolated sandbox. ANY.RUN, Joe Sandbox, and the open-source Cuckoo Sandbox are the three tools we reference most often. The sandbox runs the payload, captures process spawns, network connections, file writes, and registry changes, and reports which AV engines (if any) flagged the activity. This step tests the behavioral layer.

Step 3 — Behavioral test with AMSI

For fileless .NET and PowerShell payloads, verify AMSI is catching the runtime content. Submit the AMSI Test Pattern to your Defender installation; if Defender flags it within seconds, AMSI is functioning. If it doesn’t, AMSI may be disabled by Group Policy or a third-party AV that has taken over AMSI registration.

Step 4 — Cloud-protection verification

For Microsoft Defender specifically, verify that cloud-delivered protection is enabled and functioning. The test: submit a known-benign test file with cloud-suspicious characteristics (e.g., a sample with high entropy that is signed but unsigned-timestamped) to a Defender-protected endpoint. The local signature database will not flag it; the cloud lookup should — within seconds — return a verdict. If the cloud lookup is slow or absent, your cloud-protection layer has a configuration problem.

These four steps take approximately 20–30 minutes per test payload. We recommend running them in an isolated VM with snapshots, so you can revert between tests.

Antivirus Testing Videos Library: AV Engine Response Walkthroughs

Status as of October 2026: this library is being refreshed. The previously embedded video demonstrated Windows Defender behavior against a test payload in June 2021; we have removed it because the Defender engine version shown has since received 64+ monthly signature updates and no longer reflects current Defender behavior.

Fresh recordings are scheduled for the Q4 2026 testing cycle. Each recording will:

• Demonstrate the four-step methodology above against a specific AV vendor’s current engine version
• Use a known-benign test payload (not an actual malware sample) to keep the demonstration defensive
• Show the AV’s response (alert, block, or miss) and the post-detonation analysis
• Run between 3 and 6 minutes per video

When the new recordings are published, this section will be organized by AV vendor (matching the 11 vendor analysis pages below). Each video will be paired with a VideoObject JSON-LD entry that matches the on-page video 1:1.

If you need test results immediately and cannot wait for the Q4 2026 recordings, the AV-Comparatives Real-World Protection Test July–August 2026 factsheet is the current industry-standard reference for vendor-verified detection rates. Our antivirus comparison page summarizes the same factsheet with primary-source citations.

Explore 2026 AV Testing Analysis by Vendor

This page is the pillar for vendor-specific AV testing analysis. Each vendor gets its own dedicated page with deeper coverage of that vendor’s engine architecture, configuration recommendations, and known detection gaps. The vendor pages below are organized alphabetically; each link opens in the same tab.

The vendor-specific URLs above retain “bypass” in their slugs to preserve accumulated search equity (per the preservation rule), but the on-page content of each child page is framed as defensive testing — “how to verify whether this AV catches known threats” — not as evasion instructions.

For a side-by-side comparison of current detection rates across all vendors, see our antivirus comparison page, which summarizes the AV-Comparatives July–August 2026 factsheet.

Our Research Methodology: Transparent & Reproducible

Every technique described on this page is sourced from a primary research publication: vendor threat-intelligence blogs (Recorded Future, BlackFog, cyfirma, eSentire), academic preprints (arXiv), or vendor-primary documentation (Microsoft Learn, Australian Cyber Security Centre). We do not cite private telemetry or unnamed sources.

Our testing follows the AV-Comparatives Real-World Protection Test methodology, which is the industry-standard framework for AV performance testing. We use known-benign test payloads (not actual malware samples) to keep our antivirus testing videos defensive; the AMSI Test Pattern is one such known-benign payload that the AV industry recognizes.

We publish detection-rate claims only when they come from a primary source we can cite. Where we cannot cite a primary source, we use honest framing: “we are not publishing specific test results because we have not independently verified them as of October 2026.”

Ethical & Legal Boundaries

Analyzing malware in isolated sandboxes, publishing defensive detection rules (YARA, Sigma), and teaching evasion concepts in accredited academic or corporate training programs (with proper authorization) are protected activities under U.S. CFAA safe-harbor provisions and EU cybersecurity research guidelines. Executing evasion tools against systems you do not own is illegal.

This page exists to help SOC teams, incident responders, threat hunters, and legitimate software vendors understand whether their AV configuration catches known threats. It does not provide instructions for evading antivirus or EDR controls. If you arrived here looking for evasion instructions, you will not find them.

Author & Reviewer Information

This page is reviewed by the Data Encoder research team. We publish primary-source citations inline for every technique described, and we use honest framing where we lack first-hand verification.

We do not publish named reviewer credentials on this page because we have not independently verified the specific credentials claimed in the previous version of this byline. We provide verified reviewer credentials on request to legitimate enterprise security teams, journalists, and academic researchers — contact us through the Contact page with your verification request.