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    GopherWhisper APT C2 Exfiltration via file.io with Go HTTP Client

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    GlassDiceBearhttps://www.dicebear.comhttps://creativecommons.org/publicdomain/zero/1.0/„Glass” (https://www.dicebear.com) by „DiceBear”, licensed under „CC0 1.0” (https://creativecommons.org/publicdomain/zero/1.0/)
    Ankit Mehta@Secvyn
    •updated Jun 30, 2026•0•0•0

    Detects outbound HTTP POST requests to file.io originating from a Go-based HTTP client, consistent with the GopherWhisper APT C2 or exfiltration activity.

    Suricata

    Tags

    T1071.001 - Web ProtocolsT1567.002 - Exfiltration to Cloud StorageTA0011 - Command and ControlTA0010 - ExfiltrationNetwork Connection OutboundHTTP RequestData ExfiltrationNetwork GenericSuricata IDSHTTPTrojan Activity

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