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TechniqueActive Directory

SID History Injection

SID history injection smuggles a privileged group's identity into a forged Kerberos ticket, so a standard account wields administrator rights it was never granted. This lesson explains why Active Directory honors that injected identity, how a compromised domain reaches across a trust into another, and how to communicate the risk clearly in interviews, reports, and stakeholder conversations.

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What you'll learn

  • SID history (sidHistory)
  • ExtraSids in the PAC
  • SID filtering
  • SID history injection
  • Relative Identifier (RID)

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  • All 78 lessons: AD techniques, professional skills, each with interview answers and study kits
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  • All 12 attack paths: full compromise walkthroughs for interviews and reports
  • New lessons and attack paths added regularly

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