AVID-2023-V004

Vulnerability from avid – Published: 2023-03-31 – Updated: 2023-03-31 ATLAS Case Study
Summary
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.
Risk domain
Security
SEP view
S0403: Adversarial Example
Lifecycle
L06: Deployment
Organisations
CylancePROTECT, Cylance Smart Antivirus (deployer)
Affected artifacts
References
URL Label
https://atlas.mitre.org/studies/AML.CS0003 Bypassing Cylance's AI Malware Detection
https://skylightcyber.com/2019/07/18/cylance-i-ki… Skylight Cyber Blog Post, "Cylance, I Kill You!"
https://www.security7.net/news/the-new-cylance-vu… Statement's from Skylight Cyber CEO
To clipboard 

{
  "affects": {
    "artifacts": [
      {
        "name": "CylancePROTECT, Cylance Smart Antivirus",
        "type": "System"
      }
    ],
    "deployer": [
      "CylancePROTECT, Cylance Smart Antivirus"
    ],
    "developer": []
  },
  "credit": null,
  "data_type": "AVID",
  "data_version": "0.2",
  "description": {
    "lang": "eng",
    "value": "Researchers at Skylight were able to create a universal bypass string that evades detection by Cylance\u0027s AI Malware detector when appended to a malicious file."
  },
  "impact": {
    "avid": {
      "lifecycle_view": [
        "L06: Deployment"
      ],
      "risk_domain": [
        "Security"
      ],
      "sep_view": [
        "S0403: Adversarial Example"
      ],
      "taxonomy_version": "0.2"
    }
  },
  "last_modified_date": "2023-03-31",
  "metadata": {
    "vuln_id": "AVID-2023-V004"
  },
  "problemtype": {
    "classof": "ATLAS Case Study",
    "description": {
      "lang": "eng",
      "value": "Bypassing Cylance\u0027s AI Malware Detection"
    },
    "type": "Advisory"
  },
  "published_date": "2023-03-31",
  "references": [
    {
      "label": "Bypassing Cylance\u0027s AI Malware Detection",
      "type": "source",
      "url": "https://atlas.mitre.org/studies/AML.CS0003"
    },
    {
      "label": "Skylight Cyber Blog Post, \"Cylance, I Kill You!\"",
      "type": "source",
      "url": "https://skylightcyber.com/2019/07/18/cylance-i-kill-you/"
    },
    {
      "label": "Statement\u0027s from Skylight Cyber CEO",
      "type": "source",
      "url": "https://www.security7.net/news/the-new-cylance-vulnerability-what-you-need-to-know"
    }
  ],
  "reports": null
}


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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.