← Practice and learn

Triage sprint

A noisy day in one page: decide quickly what to close, look at, or escalate.

A noisy shift: 11 alerts landed at once. You have no time for a full investigation, so make a call on each.

  • lowAntivirus

    eicar.com.txt quarantined on lab-pc-04. The user is the security trainer running a scheduled awareness demo.

  • mediumIdentity

    j.mehta had 3 failed sign-ins, then a success 2 minutes later from the same office address.

  • highIdentity

    Impossible travel for p.nair: Mumbai, then Frankfurt 4 minutes later. The Frankfurt address is the company VPN exit.

  • highEndpoint

    Service account svc-backup signed in interactively on a laptop at 01:12. Service accounts normally never do this.

  • criticalDirectory

    helpdesk-tmp added a new user to Domain Admins at 03:05. There is no change ticket.

  • mediumWAF

    4 requests with SQL characters to /search from 198.51.100.77. All were blocked with a 403.

  • criticalMail gateway

    14 users received the same email linking to harborpine-verify.test. 3 of them clicked.

  • lowEndpoint

    GoogleUpdate.exe made an outbound connection on a standard laptop. File is signed by the vendor.

  • highFirewall

    ws-fin-07 sent 40 MB to an unknown file-sharing site at 23:50. The user is on leave this week.

  • mediumNetwork

    10.20.9.5 touched 200 hosts between 22:00 and 22:30. This is the weekly approved scan under CHG-2231.

  • mediumVPN

    d.rossi connected from Portugal for the first time. Their calendar shows they are on holiday.

0 of 11 decided

Found something confusing or unrealistic?