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DarkSide v1.8.6.2 UAC Bypass Teardown: Detection & IOCs

DarkSide v1.8.6.2 deletes shadow copies and kills backup services. First documented in 2021, it has 9 detection rules, 15 IOCs and a free Splunk SPL rule.

Read the full threat intel for DarkSide v1.8.6.2 UAC Bypass Teardown: Detection & IOCs →

Chapters

  1. 0:00The hookEighteen attack techniques encrypt targets.
  2. 0:04The storyResearchers analyzed Darkside ransomware.
  3. 0:10Attack pathIt escalates via UAC bypass, deletes shadows.
  4. 0:24AttributionAttributed to DarkSide.
  5. 0:28Indicators of compromise8 indicators to hunt: 3 domains, 1 URL and 1 SHA-256 hash, and more.
  6. 0:37MITRE ATT&CK techniques18 ATT&CK techniques, from execution to impact.
  7. 0:41Remediation4 steps now: Block securebestapp20[.]com and temisleyes[.]com at DNS and egress proxies.
  8. 0:50Detection rules9 detection rules, in SPL, KQL and Sigma.
Transcript

0:00Eighteen attack techniques encrypt targets.

0:05Researchers analyzed Darkside ransomware.

0:08Targets high-value organizations.

0:11It escalates via UAC bypass, deletes shadows.

0:14Stops services, kills processes.

0:16Encrypts files: Salsa-20 and RSA.

0:20Drops ransom note, self-deletes.

0:24Attributed to DarkSide. Confidence: low.

0:298 indicators to hunt: 3 domains, 1 URL and 1 SHA-256 hash, and more.

0:3718 ATT&CK techniques, from execution to impact.

0:424 steps now: Block securebestapp20[.]com and temisleyes[.]com at DNS and egress proxies.

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

0:56Threadlinqs. The unified security engineering platform.