Webfilter

AI Security Review

Evidence context: threat category none; evidence quality moderate.

The extension is named Webfilter, and its description is “Statisk blockering av oönskade domäner och webbplatser.” That stated purpose matches the domain-heavy results tied to extracted_from_files, including XIOC-DOMAIN-000a.de, XIOC-DOMAIN-000free.us, and XIOC-DOMAIN-01-casino.com. A static web filter needs a list of domains to block, so domain matches alone fit the advertised function.

The strongest signal is the nature of the extracted domains. XIOC-DOMAIN-d1dext3t9dk55e.cloudfront.net, XIOC-DOMAIN-d3pu2nwk20c7jt.cloudfront.net, and XIOC-DOMAIN-sradg.eastus.cloudapp.azure.com identify common hosting platforms or cloud subdomains. XIOC-DOMAIN-dns.matthias-prost.com and XIOC-DOMAIN-dns.kamilszczepanski.com identify names that can occur in DNS or blocklists. These titles show that the extractor found domain strings in extracted_from_files; they do not show that the extension contacted those domains or sent user data to them.

Several entries are suitable blocklist material. XIOC-DOMAIN-fastline.club, XIOC-DOMAIN-zerivox.xyz, and XIOC-DOMAIN-tuxlervpn.com are specific domains that a web filter could intentionally classify as unwanted. XIOC-DOMAIN-ac6.de, XIOC-DOMAIN-scientificsense.org, and XIOC-DOMAIN-fr.fragoria.com provide the same kind of domain-list evidence. The finding titles contain no URL paths, request parameters, credential targets, cookie operations, or data-upload indicators.

The scan record for extracted_from_files reports no malware-signature, malware, obfuscation, network, dependency, secret, or tool-poisoning findings. That absence matters because the domain matches have no companion finding that ties them to credential theft, browser hijacking, proxyware, or a delivered payload. The 29 low-severity code-smell results are also insufficient to change that reading, since no code-smell title or file path identifies harmful behavior.

The extension declares no permissions and no host permissions. That limits the capability shown in the supplied metadata. The listed publisher, [email protected], also provides a concrete developer identity, while Webfilter makes a direct claim about domain blocking. Neither extracted_from_files nor any listed XIOC title shows impersonation of a known product.

The strongest counterargument is the presence of domains such as XIOC-DOMAIN-dns.matthias-prost.com, XIOC-DOMAIN-fastline.club, and XIOC-DOMAIN-zerivox.xyz. A domain list containing obscure or unwanted sites can look like a threat when every entry receives a medium-severity label. Those titles still describe extracted domain strings, and the scan record for extracted_from_files supplies no runtime connection or payload finding. The counterargument therefore supports checking the source list if behavior changes, while the current evidence supports a blocklist false positive.

The available evidence is limited to extracted indicators and metadata. extracted_from_files does not identify the source file or show the surrounding code, so it cannot prove how the list is used. Even with that limit, the advertised filtering purpose, empty permission sets, identifiable publisher, and absence of malware or obfuscation findings support treating the results as scanner noise rather than an unsafe extension.

Key Reasons

• Webfilter describes static blocking of unwanted domains, matching the domain strings extracted from extracted_from_files.
• XIOC-DOMAIN-000a.de and XIOC-DOMAIN-01-casino.com fit blocklist entries rather than proof of runtime communication.
• The scan record for extracted_from_files reports no malware-signature, malware, obfuscation, network, or tool-poisoning finding.
• The metadata lists empty permissions and host permissions, plus the identifiable developer [email protected].
• No listed finding title shows credential access, data upload, browser hijacking, or impersonation.

False Positive Considerations

• IoC extraction from a domain-blocking list in extracted_from_files
• Cloud and infrastructure domains in XIOC-DOMAIN-d1dext3t9dk55e.cloudfront.net and XIOC-DOMAIN-sradg.eastus.cloudapp.azure.com
• Medium-severity labels applied to domain strings without runtime network evidence
• High finding volume without malware-signature or obfuscation findings

Reviewed 2026-09-29; recommended action: suppress false positive; model confidence 88%.