Detection Method: Computer Vision

Computer Vision uses image recognition to analyze visual elements in messages, attachments, and web content to detect threats or impersonation attempts. It examines logos, screenshots, and HTML to find signs of phishing or fraud.
Computer Vision can detect:
  • Brand impersonation with fake logos (e.g., Microsoft, PayPal)
  • Visual elements of phishing pages, like login forms
  • CAPTCHAs used to bypass security systems
  • Malicious content disguised as legitimate visuals
For example, attackers often create fake login pages mimicking trusted brands, and Computer Vision can detect these attempts by recognizing misused logos with high confidence.
Blog Posts
Living Off the Land: Callback Phishing via Docusign comment · Blog · Sublime Security
Living Off the Land: Callback Phishing via Docusign comment · Blog · Sublime Security
QR Code Phishing: Decoding Hidden Threats · Blog · Sublime Security
QR Code Phishing: Decoding Hidden Threats · Blog · Sublime Security
Call Me Maybe? The Rise of Callback Phishing Emails · Blog · Sublime Security
Call Me Maybe? The Rise of Callback Phishing Emails · Blog · Sublime Security
Attack Types (6):
Credential Phishing
Spam
Callback Phishing
Malware/Ransomware
BEC/Fraud
Extortion
Tactics & Techniques (17):
Free file host
Image as content
Impersonation: Brand
Social engineering
PDF
Evasion
QR code
Exploit
Out of band pivot
Free email provider
Lookalike domain
Open redirect
Free subdomain host
Spoofing
Macros
Scripting
HTML smuggling
Rule Name & Severity
Last Updated
Author
Types, Tactics & Capabilities
Brand impersonation: Microsoft with low reputation links
4d ago
Nov 8th, 2025
Sublime Security
Credential Phishing
Free file host
Image as content
Impersonation: Brand
Social engineering
Computer Vision
Content analysis
File analysis
Header analysis
Natural Language Understanding
Optical Character Recognition
Sender analysis
URL analysis
/feeds/core/detection-rules/brand-impersonation-microsoft-with-low-reputation-links-b59201b6
Brand impersonation: SharePoint PDF attachment with credential theft language
5d ago
Nov 7th, 2025
Sublime Security
Credential Phishing
Impersonation: Brand
Social engineering
PDF
Evasion
Computer Vision
File analysis
Natural Language Understanding
Optical Character Recognition
Sender analysis
URL analysis
Header analysis
Whois
/feeds/core/detection-rules/brand-impersonation-sharepoint-pdf-attachment-with-credential-theft-language-ae3756fa
Compensation review with QR code in attached EML
7d ago
Nov 5th, 2025
Sublime Security
Credential Phishing
QR code
Social engineering
Computer Vision
Content analysis
Optical Character Recognition
QR code analysis
/feeds/core/detection-rules/compensation-review-with-qr-code-in-attached-eml-98a2f03c
Brand impersonation: USPS
7d ago
Nov 5th, 2025
Sublime Security
Credential Phishing
Image as content
Impersonation: Brand
Social engineering
Computer Vision
Content analysis
Natural Language Understanding
Sender analysis
/feeds/core/detection-rules/brand-impersonation-usps-28b9130a
Spam: Mastercard promotional content with image-based body
7d ago
Nov 5th, 2025
Sublime Security
Credential Phishing
Spam
Image as content
Impersonation: Brand
Social engineering
Computer Vision
Content analysis
Header analysis
Natural Language Understanding
Optical Character Recognition
Sender analysis
/feeds/core/detection-rules/spam-mastercard-promotional-content-with-image-based-body-5f2cb559
Brand impersonation: TikTok
13d ago
Oct 30th, 2025
Sublime Security
Credential Phishing
Impersonation: Brand
Social engineering
Computer Vision
Content analysis
Header analysis
Natural Language Understanding
Optical Character Recognition
Sender analysis
/feeds/core/detection-rules/brand-impersonation-tiktok-aaacc8b7
Brand impersonation: Discord notification
20d ago
Oct 23rd, 2025
Sublime Security
Credential Phishing
Impersonation: Brand
Social engineering
Computer Vision
Content analysis
/feeds/core/detection-rules/brand-impersonation-discord-notification-97007826
Brand impersonation: Toronto-Dominion Bank
21d ago
Oct 22nd, 2025
Sublime Security
Credential Phishing
Impersonation: Brand
Social engineering
Computer Vision
Content analysis
Header analysis
Natural Language Understanding
Optical Character Recognition
Sender analysis
/feeds/core/detection-rules/brand-impersonation-toronto-dominion-bank-2dc16a55
Brand impersonation: DocuSign branded attachment lure with no DocuSign links
21d ago
Oct 22nd, 2025
Sublime Security
Credential Phishing
Impersonation: Brand
Social engineering
Computer Vision
Content analysis
Header analysis
Natural Language Understanding
Optical Character Recognition
Sender analysis
URL screenshot
/feeds/core/detection-rules/brand-impersonation-docusign-branded-attachment-lure-with-no-docusign-links-814a5694
Callback phishing via SignFree e-signature request
26d ago
Oct 17th, 2025
Sublime Security
Callback Phishing
Exploit
Impersonation: Brand
Out of band pivot
Social engineering
Computer Vision
Content analysis
Header analysis
Sender analysis
URL analysis
/feeds/core/detection-rules/callback-phishing-via-signfree-e-signature-request-21381c37
Callback phishing via Xodo Sign comment
26d ago
Oct 17th, 2025
Sublime Security
Callback Phishing
Exploit
Impersonation: Brand
Out of band pivot
Social engineering
Computer Vision
Content analysis
Header analysis
Sender analysis
URL analysis
/feeds/core/detection-rules/callback-phishing-via-xodo-sign-comment-6f722c5d
Brand impersonation: Sharepoint
26d ago
Oct 17th, 2025
Sublime Security
Credential Phishing
Impersonation: Brand
Social engineering
Computer Vision
Content analysis
File analysis
Natural Language Understanding
Sender analysis
/feeds/core/detection-rules/brand-impersonation-sharepoint-284b1b70
Brand impersonation: Google Drive fake file share
26d ago
Oct 17th, 2025
Sublime Security
Credential Phishing
Malware/Ransomware
Impersonation: Brand
Social engineering
Content analysis
Header analysis
URL analysis
Computer Vision
/feeds/core/detection-rules/brand-impersonation-google-drive-fake-file-share-b424a941
Callback phishing via e-signature service
26d ago
Oct 17th, 2025
Sublime Security
Callback Phishing
Free email provider
Impersonation: Brand
Social engineering
Content analysis
Computer Vision
Header analysis
Optical Character Recognition
/feeds/core/detection-rules/callback-phishing-via-e-signature-service-ed37b4fd
Brand impersonation: Adobe with suspicious language and link
26d ago
Oct 17th, 2025
Sublime Security
Credential Phishing
Impersonation: Brand
Social engineering
Computer Vision
Content analysis
Header analysis
Sender analysis
/feeds/core/detection-rules/brand-impersonation-adobe-with-suspicious-language-and-link-32cc8bf1
QR Code with suspicious indicators
26d ago
Oct 17th, 2025
Sublime Security
Credential Phishing
QR code
Social engineering
Content analysis
Header analysis
Computer Vision
Natural Language Understanding
QR code analysis
Sender analysis
URL analysis
/feeds/core/detection-rules/qr-code-with-suspicious-indicators-04f5c34f
Callback Phishing via Signable E-Signature Request
26d ago
Oct 17th, 2025
Sublime Security
Callback Phishing
Exploit
Impersonation: Brand
Out of band pivot
Social engineering
Computer Vision
Content analysis
Header analysis
Sender analysis
URL analysis
/feeds/core/detection-rules/callback-phishing-via-signable-e-signature-request-4599575d
Brand impersonation: Microsoft with embedded logo and credential theft language
26d ago
Oct 17th, 2025
Sublime Security
Credential Phishing
Impersonation: Brand
Social engineering
Computer Vision
Natural Language Understanding
Sender analysis
/feeds/core/detection-rules/brand-impersonation-microsoft-with-embedded-logo-and-credential-theft-language-3ee9ef3d
Credential phishing: DocuSign embedded image lure with no DocuSign domains in links
26d ago
Oct 17th, 2025
Sublime Security
Credential Phishing
Impersonation: Brand
Social engineering
Computer Vision
Content analysis
Header analysis
Natural Language Understanding
Optical Character Recognition
Sender analysis
/feeds/core/detection-rules/credential-phishing-docusign-embedded-image-lure-with-no-docusign-domains-in-links-dfe8715e
Callback phishing via Adobe Sign comment
26d ago
Oct 17th, 2025
Sublime Security
Callback Phishing
Evasion
Impersonation: Brand
Out of band pivot
Social engineering
Content analysis
Computer Vision
Header analysis
Sender analysis
URL analysis
/feeds/core/detection-rules/callback-phishing-via-adobe-sign-comment-7eb4516d
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