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BYOD Ransomware Michigan State Claim: Detection & IOCs

BYOD claims it stole data on 1.3M Michigan State students, and MSU reset NetID passwords. Includes 9 detection rules (one free in Splunk SPL) and 11 IOCs.

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Chapters

  1. 0:00The hookRansomware gang claims university breach: 1.3 million students.
  2. 0:05The storyMSU detected credential compromise in October.
  3. 0:14Attack pathReportedly, credentials were compromised.
  4. 0:26AttributionAttributed to BYOD.
  5. 0:31Indicators of compromise1 indicator to hunt: 1 domain.
  6. 0:37MITRE ATT&CK techniques7 ATT&CK techniques, from initial access to impact.
  7. 0:42Remediation4 steps now: Force password resets for affected identity populations and revoke active.
  8. 0:50Detection rules9 detection rules, in SPL, KQL and Sigma.
Transcript

0:00Ransomware gang claims university breach: 1.3 million students.

0:06MSU detected credential compromise in October.

0:09The gang reported taking one-point-three million records.

0:14Reportedly, credentials were compromised.

0:17Records were then claimed stolen.

0:19MSU listed on the leak site.

0:27Attributed to BYOD. Confidence: low.

0:321 indicator to hunt: 1 domain.

0:377 ATT&CK techniques, from initial access to impact.

0:424 steps now: Force password resets for affected identity populations and revoke active.

0:519 detection rules, in SPL, KQL and Sigma.

0:56Threadlinqs. The unified security engineering platform.