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# AI helps scammers build convincing antivirus renewal pages
- URL: https://f4n6.co.uk/security-feed/ai-helps-scammers-build-convincing-antivirus-renewal-pages/
- Published: 2026-09-16T09:32:43.000Z
- Updated: 2026-09-16T09:32:43.000Z
- Author: Jeff Davies
- Tags: #security-feed

## 1\. Executive summary

Malwarebytes has published a scam-hunting case study of a fake Avast "subscription renewed" page written in French and aimed at Belgian users, which presents a fabricated €129.99 Avast Premium Security renewal covering five devices and then harvests a cancellation form asking only for full name, email address and Belgian mobile number. The observed page was never finished — code comments left by its author state the form sends nothing anywhere — so this specific artefact collected no data; the significance is the demonstrated method, not the instance. No CVE, CVSS score or CISA KEV entry applies to this item, and no verified reference data was resolved for it. The bottom-line risk to EMEA financial services is indirect but real: the harvested name-plus-working-mobile-number pair is the entry condition for a follow-on voice call in which the caller poses as support staff and pushes the victim to install remote access software or "reverse" a payment that never existed — a pattern that terminates in authorised push payment fraud and remote-access compromise of retail banking customers. The AI-involvement assessment is the source's inference, not a proven fact, and the entire item rests on a single vendor source.

## 2\. Regulatory framing

No specific DORA/NIS2 article is directly engaged by this item.

This is a consumer-facing brand-impersonation scam reported by a security vendor. It describes no ICT incident at, or affecting the operational resilience of, a financial entity; no third-party ICT service provider relationship; and no supply-chain compromise. The DORA incident-management, classification, reporting, testing and third-party-risk articles in the reference set are not triggered by a fake antivirus renewal page observed in the wild, and NIS2 Art. 21(2)(d) and Art. 23 and the UK NIS 2018 Regulations are likewise not engaged on the facts presented. Clients should treat this as fraud-risk and customer-protection intelligence, not as a regulatory reporting event. If a client's own brand is impersonated in an equivalent campaign, that assessment should be revisited against the incident-classification and reporting articles at that time.

## 3\. Technical analysis & attack chain

This is a fraud-methodology item, not a vulnerability or malware campaign. There is no exploited component, no CVE, no payload and no command-and-control infrastructure described. The operation works as follows, per the source.

**Lure.** The victim receives a message claiming an antivirus subscription has automatically renewed. The source notes the message names the antivirus product the recipient uses, but that this does not imply the sender has access to the device or account — scammers impersonate popular brands and send the same message at volume, betting that some recipients are genuine customers. Simply responding to such a message increases the value of the contact details, because it confirms the number is active and that the recipient is willing to engage.

**Landing page.** Following the "cancel" instruction takes the victim to a fake page. The observed instance impersonated Avast and was written in French for a Belgian audience. It displayed a fabricated renewal summary: Avast Premium Security at €129.99, covering five devices, renewing again the following February, with a green tick, a status badge reading "Active", and a summary table showing amount, payment method and dates. The source states plainly that there is no subscription, no charge, and no connection to Avast, whose branding is used without permission.

**Harvest.** Alongside the renewal summary sits a cancellation form requesting full name, email address and Belgian mobile number — and nothing else. The source assesses the absence of a password field or card-detail request as deliberate: a form asking only for name, email and phone feels harmless and is far easier to complete than a login page. The name-plus-working-mobile pair is precisely what the next stage requires.

**Monetisation and follow-on.** The collected details can be sold to other scammers or used directly for a phone call in which the caller poses as support staff and attempts to persuade the victim to install remote access software, or to "help" reverse a payment that never happened. The source characterises the form as the lure and the call as where the real danger begins.

**State of the observed artefact.** The page was unfinished. Two notes left in the page code — written in polite French, addressed to whoever commissioned the work — explained that the form did not yet send anything anywhere and that a real submission process would need to be connected later. The code also contained unused styling for a section that had been removed, and two pieces of text that would have rendered as visible gibberish had anyone opened the page in a browser. The source's assessment is that the artefact was most likely half-built, or a template awaiting sale to a party who would add a destination for the stolen details.

**AI-involvement assessment — inferred, not proven.** The source's indicators of AI assistance are: the courteous, second-person, contractor-style code comments; unused styling left behind from a removed section, consistent with staged generation without final review; and copy that is grammatically correct but vague, describing subscription benefits across four paragraphs without naming any specific Avast feature such as its firewall, VPN or ransomware protection. The source explicitly states that generated code carries no watermark and that AI involvement cannot be proven from the files alone. Treat the AI attribution as an analytical judgement, not a technical finding.

**Why this matters despite the low technical sophistication.** The source's argument is that building a page of this quality previously required skill, which capped production volume; with AI assistance, a variant in Dutch or German, or aimed at a different brand, can be produced in minutes. The traditional consumer heuristic — look for bad grammar, wrong currency, clumsy layout, stretched logo — is correspondingly weakened, because fluent copy and polished layouts are now cheap and real logos are trivially copied. The source's conclusion is that the structure of the scam is unchanged and that judgement of the situation, not the appearance of the page, is the reliable control.

**Confidence caveat.** Every technical and behavioural detail above comes from a single vendor source (Malwarebytes). No second source corroborates the campaign, the targeting, the page contents or the AI assessment. No scam domain, URL, phone number, hash or file artefact was published with the report, so nothing here is independently verifiable or machine-pivotable. Single-sourced; verify before acting on specifics.

## 4\. Mitigation & containment

This item implicates process controls and customer-facing fraud defences, not enterprise technical containment. There is no CVE to patch, no vendor fix to apply, and no infrastructure to block — the source publishes no domains, URLs or phone numbers.

### P1 — within 24 hours

- Brief contact-centre, fraud and customer-protection teams on the pattern: a fake antivirus renewal notice, a cancellation form requesting only name, email and mobile number, followed by an inbound call from a self-described support agent. The distinguishing feature is the *absence* of a password or card-detail request — staff should not treat that absence as evidence the page is benign.
- Reinforce outbound call-back verification: any inbound caller claiming to act for a security vendor, bank or support function must be verified through a channel the customer initiates, using a number from the customer's own records or the institution's published contact details — never a number supplied by the caller.
- Reiterate the standing instruction to customers who have already installed software at a caller's direction: disconnect the device from the internet, remove the software they were asked to install, and change passwords from a different device. Where money was sent or card details shared, contact the bank immediately. (These are the source's own remediation steps.)

### P2 — within 72 hours

- Review inbound scam and complaint queues for the pattern over the preceding 30 days: antivirus-renewal complaints, customers reporting unexpected support calls, and customers who installed remote-access tooling at a caller's request. Treat any such case as a potential authorised push payment or remote-access compromise and route it to fraud review rather than general support.
- Confirm that remote-access software installation on retail customer devices is covered by existing customer warnings and that frontline staff have a scripted escalation path when a customer reports having granted access.
- If your brand or a brand you distribute is named in an equivalent campaign, escalate to brand-protection and take down the impersonating page through the relevant registrar or hosting provider. No such domain is provided in this source.

### P3 — within 7 days

- Refresh customer awareness material to drop the "spot the bad grammar" heuristic and replace it with the source's structural test: did you arrive somewhere unexpected, are you being made to worry about losing money, and are you being asked to provide a way to contact you? A professional-looking page is no longer evidence of legitimacy.
- Where the institution offers browser-level protection to retail customers, confirm it is enabled and marketed; the source recommends blocking scam pages before they open as the primary control.

## 5\. Indicators of compromise

No indicators of compromise available in the source material. The source publishes no domains, URLs, IP addresses, file hashes, filenames, registry keys or phone numbers associated with the campaign.

The source does describe observable behaviours. These are not machine-pivotable atomic indicators and are recorded separately below.

### Behavioural indicators

| Behaviour                                                                                                                                                        | Where to observe                                                   | Confidence                                                                          |
| ---------------------------------------------------------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------ | ----------------------------------------------------------------------------------- |
| Inbound message claiming an antivirus subscription has auto-renewed, naming a product the recipient plausibly uses                                               | Customer reports; contact-centre and fraud intake queues           | Single-sourced (Malwarebytes)                                                       |
| Landing page presenting a renewal summary with amount, device count, payment method, renewal date, green tick and an "Active" status badge                       | Customer-supplied screenshots; brand-protection monitoring         | Single-sourced                                                                      |
| Cancellation form requesting full name, email address and mobile number only — no password, no card details                                                      | Customer-supplied screenshots; brand-protection monitoring         | Single-sourced                                                                      |
| Follow-on inbound call from a self-described support agent pressing the customer to install remote access software or to "reverse" a payment that never occurred | Contact-centre call recordings; customer reports; fraud case notes | Single-sourced                                                                      |
| Page copy that is fluent but generic, describing subscription benefits without naming any specific product feature                                               | Brand-protection review of suspected impersonation pages           | Single-sourced; AI involvement is the source's inference and is explicitly unproven |

## 6\. Detection

Insufficient indicators to author detection rules.

The source provides no distinctive strings, command-line flags, mutex names, scheduled-task or service names, file names or paths, registry keys, ransom-note text or hard-coded values. The only textual artefacts described are code comments in French addressed to the page's commissioner, whose content is paraphrased rather than quoted, and a lure price of €129.99 — neither is a reliable detection artefact. Detection for this pattern belongs in fraud analytics and brand-protection monitoring against the behavioural indicators in §5, not in host or network signature rules.

## 7\. Sources

- Malwarebytes, "AI helps scammers build convincing antivirus renewal pages", https://www.malwarebytes.com/blog/threat-intel/2026/09/ai-helps-scammers-build-convincing-antivirus-renewal-pages, published 2026-09-16.

## 8\. Adverse Trace position

We assess this as a low-severity, high-relevance fraud-methodology item. There is no CVE, no CVSS score and no CISA KEV entry — no verified reference data was resolved for this item, and none of the DORA or NIS2 articles in our reference set is engaged by a consumer-facing scam page observed in the wild. The technical sophistication of the observed artefact is negligible: it was never finished and its form sent nothing. What warrants client attention is the method and its economics — a name plus a working mobile number is a low-friction harvest that feeds a voice-call stage ending in remote-access compromise or authorised push payment fraud, and AI-assisted page generation removes the production bottleneck that previously limited the volume and quality of such lures. Client impact is concentrated in retail and small-business customer bases in Belgium and, by extension, comparable French-language and multilingual EMEA markets; enterprise technical exposure is not indicated. Two caveats govern this assessment: the entire item is single-sourced to Malwarebytes with no corroborating reporting and no published infrastructure, so nothing here is independently verifiable; and the AI-involvement conclusion is the source's inference from stylistic and code-hygiene indicators, which the source itself states cannot be proven from the files. We will monitor for corroborating vendor reporting, for published domains or phone numbers associated with this campaign, and for evidence of the same template being resold or retargeted at financial-services brands, and will reissue if any of those materialise.

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[Read the original source →](https://www.malwarebytes.com/blog/threat-intel/2026/09/ai-helps-scammers-build-convincing-antivirus-renewal-pages?ref=f4n6.co.uk)

*Published via PulseTrace — Adverse Trace threat intelligence.*