Credential Attack Recon Detection - How Tooling Fail and How to Reduce False Positives

Credential Attack Recon Detection - How Tooling Fail and How to Reduce False Positives

Security BSides London via YouTube Direct link

Match non-existent site and postal addresses with other behaviours

12 of 19

12 of 19

Match non-existent site and postal addresses with other behaviours

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Credential Attack Recon Detection - How Tooling Fail and How to Reduce False Positives

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  1. 1 Credential attack recon detection: How current UEBA & NID tooling fail and how to reduce false positives
  2. 2 Current situation - UEBA and network defence tools - What they filter
  3. 3 Use of deliberately nonsense words as may show attacker testing the site responses
  4. 4 Valid username (with invalid password), followed by a login with a deliberately gibberish or invalid username
  5. 5 Flag the fist few entries of standard password/username list compilations
  6. 6 Monitor webpages containing unencrypted user IDs for rapid requests
  7. 7 Lists of publicly leaked accounts for an organisation
  8. 8 Flag repetitive backlinks and onward links by site users
  9. 9 Flagging non-existent subdomains and web directories in URLS
  10. 10 Baseline normal vs suspicious behaviours on applications post-registration
  11. 11 Sequential numbers/letters being used in password or username fields
  12. 12 Match non-existent site and postal addresses with other behaviours
  13. 13 Receipt of high number of 2FA, unknown device and forgot password verifications
  14. 14 Switchboard dial-in call behaviour
  15. 15 Blacklist or flag proxy service IP addresses
  16. 16 Flag identical interval times between each login attempt where user agent is the same.
  17. 17 Increase the length of time after when repeated login requests are blocked
  18. 18 Monitor email forwarding rules to thwart attacker persistence
  19. 19 Conclusion

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