Short bio

Malware.AI.(id-nr) are detection names produced by the Artificial Intelligence module in Malwarebytes 4 and Malwarebytes business products. These detections are created by using Artificial Intelligence and Machine Learning to determin the behavior of the scanned item. This technique was developed by Malwarebytes for signatureless detection of zero-day (0-day) threats.

The id-nr is usually 9 digits.

Types of infection

Based on closer determination, items detected as Malware.AI can be categorized more precisely based on their behavior. Malwarebytes uses the underlying threat categories:

  • Adware
  • Fraudtool
  • Hijack
  • Ransomware
  • Riskware
  • Rogue
  • Rootkit
  • Spyware
  • Trojan
  • Virus
  • Worm


Malwarebytes detects unknown threats as Malware.AI by using Artificial Intelligence and Machine Learning techniques without any specific detection rules to protect users from malware that has not yet been researched and classified. This helps protect our customers against 0-day malware.

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