Detection Method: YARA

YARA detection scans email messages, attachments, and extracted content for known malware, phishing patterns, or suspicious code. This detection method uses the YARA pattern matching language, which lets your security team create specific signatures based on known malicious patterns, both textual and binary.
YARA detection can identify:
  • Known malware families based on their distinctive code patterns
  • Obfuscated scripts or executables using encoding techniques
  • Common phishing templates with structural similarities
  • Suspicious binary patterns that may indicate malicious functionality
  • Custom threats targeting specific organizations with tailored YARA rules
Rule Name & Severity
Last Updated
Author
Types, Tactics & Capabilities
Attachment: PDF teal SharePoint lure
1d ago
Oct 5th, 2026
Sublime Security
Attachment: PDF with specific blurred lure
5d ago
Oct 1st, 2026
Sublime Security
Attachment: PDF including a Microsoft lure with specific signature
5d ago
Oct 1st, 2026
Sublime Security
Attachment: PDF W9 signature reuse
8d ago
Sep 28th, 2026
Sublime Security
Encrypted Microsoft Office files from untrusted sender
8d ago
Sep 28th, 2026
Sublime Security
Link to auto-downloaded DMG in encrypted zip
13d ago
Sep 23rd, 2026
Sublime Security
Attachment: PDF with EOF MD5 hash marker
26d ago
Sep 10th, 2026
Sublime Security
Attachment: PDF RFP lure
1mo ago
Sep 3rd, 2026
Sublime Security
Attachment: Gzip-archived with nested HTML file containing image and button link
1mo ago
Sep 3rd, 2026
Sublime Security
Attachment: GZ archive with credential theft content
1mo ago
Sep 2nd, 2026
Sublime Security
Attachment: ZIP filename mismatch
1mo ago
Aug 31st, 2026
Sublime Security
Attachment: ZIP containing Office binary with embedded DLL
1mo ago
Aug 24th, 2026
Sublime Security
Attachment: QuickBooks PDF lure
1mo ago
Aug 20th, 2026
Sublime Security
Attachment: PDF with embedded box-lure and javascript
1mo ago
Aug 19th, 2026
Sublime Security
Attachment: PDF templated investment lure
1mo ago
Aug 19th, 2026
Sublime Security
Attachment: PDF with base64 JavaScript and eval functions
1mo ago
Aug 11th, 2026
Sublime Security
Attachment: PDF with secure document acknowledgment prompt
2mo ago
Jul 17th, 2026
Sublime Security
Attachment: PDF with suspicious document view lure
2mo ago
Jul 14th, 2026
Sublime Security
Attachment: PDF with quote lure
3mo ago
Jul 1st, 2026
Sublime Security
Attachment: PDF with specific W-9 lure
3mo ago
Jul 1st, 2026
Sublime Security