{
 "id": "AIR-2023-0018",
 "slug": "researchers-bypass-cylance-ai-malware-detector-with-universa",
 "title": "Researchers bypass Cylance AI malware detector with universal string",
 "summary": "Researchers created a universal bypass string that, when appended to malicious files, successfully evades detection by Cylance's AI malware detector. The research demonstrates a vulnerability in AI-based security classification systems.",
 "type": "attack_on_ai",
 "categories": [
  "adversarial_evasion"
 ],
 "severity": 1,
 "targets": [
  "framework_or_tooling"
 ],
 "products": [
  "CylancePROTECT",
  "Cylance Smart Antivirus"
 ],
 "incident_date": "2023-03-31",
 "incident_date_precision": "day",
 "first_reported": "2023-03-31",
 "sources": [
  {
   "url": "https://github.com/avidml/avid-db/blob/main/vulnerabilities/2023/AVID-2023-V004.json",
   "publisher": "AVID",
   "title": "AVID-2023-V004: Researchers at Skylight were able to create a universal bypass string that evades detection by Cylance's AI Malware detector when appended to a malicious file.",
   "published_at": "2023-03-31"
  },
  {
   "url": "https://atlas.mitre.org/studies/AML.CS0003",
   "publisher": "MITRE ATLAS",
   "title": "Bypassing Cylance's AI Malware Detection",
   "published_at": "2023-03-31"
  },
  {
   "url": "https://skylightcyber.com/2019/07/18/cylance-i-kill-you",
   "publisher": "skylightcyber.com",
   "title": "Skylight Cyber Blog Post, \"Cylance, I Kill You!\"",
   "published_at": "2023-03-31"
  },
  {
   "url": "https://security7.net/news/the-new-cylance-vulnerability-what-you-need-to-know",
   "publisher": "security7.net",
   "title": "Statement's from Skylight Cyber CEO",
   "published_at": "2023-03-31"
  }
 ],
 "source_count": 4,
 "confidence": 0.9,
 "status": "published",
 "origin": "seed_avid",
 "tags": [
  "adversarial-evasion",
  "malware-detection",
  "bypass"
 ],
 "created_at": "2026-10-18T06:56:23.100Z",
 "updated_at": "2026-10-18T06:56:23.100Z"
}