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BYOD Ransomware Vanderbilt Breach: Detection & IOCs

BYOD claims it encrypted Vanderbilt databases and stole over 1M SSNs, unconfirmed. Track it with 9 detection rules, 11 IOCs and a free Splunk SPL rule.

Read the full threat intel for BYOD Ransomware Vanderbilt Breach: Detection & IOCs →

Chapters

  1. 0:00The hookBYOD lists Vanderbilt among about 17 victims.
  2. 0:04The storyVanderbilt told users to shut devices down.
  3. 0:12Attack pathBYOD claims it took over the domain controller.
  4. 0:25AttributionAttributed to BYOD.
  5. 0:30Indicators of compromise3 indicators to hunt: 1 domain, 1 file name and 1 hosting.
  6. 0:36MITRE ATT&CK techniques4 ATT&CK techniques, from persistence to impact.
  7. 0:41Remediation5 steps now: Hunt for README_BYOD_31.txt ransom notes on endpoints and file shares.
  8. 0:50Detection rules9 detection rules, in SPL, KQL and Sigma.
Transcript

0:00BYOD lists Vanderbilt among about 17 victims.

0:05Vanderbilt told users to shut devices down.

0:08BYOD claims it encrypted databases.

0:12BYOD claims it took over the domain controller.

0:15It claims encrypted databases.

0:18A ransom note links to its leak site.

0:20Listed on a Tor leak site, same day.

0:26Attributed to BYOD. Confidence: medium.

0:303 indicators to hunt: 1 domain, 1 file name and 1 hosting.

0:364 ATT&CK techniques, from persistence to impact.

0:415 steps now: Hunt for README_BYOD_31.txt ransom notes on endpoints and file shares.

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

0:56Threadlinqs. The unified security engineering platform.