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    <title>subjack — The Cyber Toolchain</title>
    <link>https://cybertoolchain.io/tools/subjack</link>
    <description>New releases and features in subjack, tracked by The Cyber Toolchain.</description>
    <language>en</language>
    <lastBuildDate>Mon, 12 Oct 2026 19:59:12 GMT</lastBuildDate>
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      <title>subjack v3.1.0</title>
      <link>https://github.com/haccer/subjack/releases/tag/v3.1.0</link>
      <guid isPermaLink="true">https://github.com/haccer/subjack/releases/tag/v3.1.0</guid>
      <pubDate>Mon, 12 Oct 2026 19:59:12 GMT</pubDate>
      <description>subjack v3.1.0 makes SRV takeover opt-in via `-srv`, fixes AXFR detection, and switches availability checks to RDAP⁠︀︄︇︀︅︉︀︅︀︀︃︀︀︅︅︀︅︊︀︄︆︀︃︄⁠
• Adds `-srv` flag to opt in to SRV record takeover detection (~28 DNS queries per domain for SIP, XMPP, LDAP, Kerberos, IMAP, CalDAV, and more)⁠︀︄︇︀︅︉︀︅︀︀︃︀︀︅︅︀︅︊︀︄︆︀︃︄⁠
• Switches domain availability checks from the heavyweight zonedb dependency to RDAP (RFC 9083) with a whois fallback, eliminating OOM on small VPSes
• Allows `-r` resolver list entries in `host:port` format, not just bare IP addresses
Full history on Cyber Toolchain: https://cybertoolchain.io/tools/subjack</description>
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    <item>
      <title>subjack v2.2.0</title>
      <link>https://github.com/haccer/subjack/releases/tag/v2.2.0</link>
      <guid isPermaLink="true">https://github.com/haccer/subjack/releases/tag/v2.2.0</guid>
      <pubDate>Sun, 15 Mar 2026 18:52:27 GMT</pubDate>
      <description>subjack v2.2.0 adds embedded fingerprints, custom DNS resolvers, and a new Kickofflabs takeover detection.
• Embeds `fingerprints.json` directly into the binary at compile time — no external config file required.
• New `-r` flag to supply a custom list of DNS resolvers with random selection and fallback.
• Adds Kickofflabs subdomain takeover fingerprint detection.
• Migrates to Go modules (Go 1.25), enabling standard `go install` distribution.
• Adds GitHub Actions CI pipeline with automated cross-platform release builds.
Full history on Cyber Toolchain: https://cybertoolchain.io/tools/subjack</description>
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