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XWorm Curriculum-vitae Phishing Wave: Detection & IOCs

Fake job-application emails deliver XWorm in the Curriculum-vitae-catalina wave; 9 detection rules, 13 IOCs and a free Splunk SPL rule.

Read the full threat intel for XWorm Curriculum-vitae Phishing Wave: Detection & IOCs →

Chapters

  1. 0:00The hookWorm surge about 1.60% through fake CVs.
  2. 0:05The storyIn October, phishing delivered XWorm to ICS systems.
  3. 0:12Attack pathPhishing sends fake CVs with malware.
  4. 0:27AttributionNo threat actor is attributed.
  5. 0:32Indicators of compromise8 indicators to hunt: 8 file names.
  6. 0:37MITRE ATT&CK techniques10 ATT&CK techniques, from initial access to command and control.
  7. 0:42Remediation3 steps now: Block or detonate executable attachments at the email gateway, especially.
  8. 0:50Detection rules9 detection rules, in SPL, KQL and Sigma.
Transcript

0:00Worm surge about 1.60% through fake CVs.

0:05In October, phishing delivered XWorm to ICS systems.

0:09By December it subsided.

0:12Phishing sends fake CVs with malware.

0:14If victims open them, systems become compromised.

0:18Email and removable media are key vectors.

0:21Activity peaked in October, subsided in December.

0:27No threat actor is attributed. Confidence: low.

0:328 indicators to hunt: 8 file names.

0:3810 ATT&CK techniques, from initial access to command and control.

0:433 steps now: Block or detonate executable attachments at the email gateway, especially.

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

0:56Threadlinqs. The unified security engineering platform.