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Heuristic

Classification

Category: Malware

Type: Other

Aliases: Heuristic, Gen:Heur, Gen:Trojan.Heur, Memscan:[variant], DeepScan:, Could be a mass-mailing worm, Could be infected with an unknown virus

Summary


A heuristic detection has identified a file with behavior that resembles known malware. This may indicate that either the file itself is harmful, or that it was altered by an infection present on the system.

Heuristic detections are used by security programs to identify patterns of suspicious actions associated with programs or files. If you suspect the detected program or file has been incorrectly identified, go to: Removal: Handling a False Positive.

Removal


Automatic action

Based on the settings of your F-Secure security product, it will either automatically delete, quarantine or rename the detected program or file, or ask you for a desired action.

Resolve a False Positive

Security programs will sometimes unintentionally identify a clean program or file as malicious if its code or behavior is similar to a known harmful program or file. This is known as a False Positive. In most cases, a False Positive is fixed in a subsequent database release. If you suspect the detected file is a False Positive, you can:

Knowledge Base

Find the latest advice in our Community Knowledge Base.

About the product

See the manual for your F-Secure product on the Help Center.

Contact Support

Chat with or call an expert for help.

Submit a sample

Submit a file or URL for further analysis.

Technical Details


F-Secure security programs include heuristic engines that perform extended file analysis during a system scan to identify files or programs with potentially harmful code or behavior.

If anything suspicious is found, it will trigger a heuristic detection. The specific detection name may vary depending on the type of suspect code or behavior seen, and can include:

  • Gen:Heur

    The suspect file shows potentially harmful code or behavior.

  • Gen:Trojan.Heur

    The suspect file contains code or behavior that resembles a known trojan.

  • Memscan:[variant], Deepscan:generic.malware

    After a suspect file was emulated in a isolated sandbox environment, potentially harmful code or behavior was observed in sandbox's memory.

Based on the settings of your F-Secure security product, it will either automatically delete, quarantine or rename the detected program or file, or ask you for a desired action.

If you are confident that you are aware of the risks involved in using the program and consent to its use, you may choose to allow the program to run. You can also change the settings of the F-Secure security product to exclude it from further scanning. Note: you need administrative rights to change the settings.

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