rule bulwark_https_bulwarkblack_com_linux_kernel_ipsec_attack_surface_reduction
{
    meta:
        author = "Bulwark Black LLC"
        source = "https://bulwarkblack.com/linux-kernel-ipsec-attack-surface-reduction/"
        description = "Auto-extracted indicators. Verify before use; not a behavioral detection rule."
        generated = "2026-07-15T22:32:16Z"
        tlp = "TLP:CLEAR"
        indicator_count = "4"
    strings:
        $s0 = "badkeys.info" ascii wide nocase  // Domains
        $s1 = "itsec.hboeck.de" ascii wide nocase  // Domains
        $s2 = "https://badkeys.info/" ascii wide nocase  // URLs
        $s3 = "https://itsec.hboeck.de/" ascii wide nocase  // URLs
    condition:
        any of ($s*)
}