SMS callback

Classification

Other

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SMS callback

Summary

This description is not about a virus, is it about certain type of scam which are done using SMS messages to fool user to phone into premium rate numbers (pay per minute numbers).

Automatic action

Based on the settings of your F-Secure security product, it will either move the file to the quarantine where it cannot spread or cause harm, or remove it.

Suspect a file is incorrectly detected (a False Positive)?

A False Positive is when a file is incorrectly detected as harmful, usually because its code or behavior resembles known harmful programs. A False Positive will usually be fixed in a subsequent database update without any action needed on your part. If you wish, you may also:

  • Check for the latest database updates

    First check if your F-Secure security program is using the latest detection database updates, then try scanning the file again.

  • Submit a sample

    After checking, if you still believe the file is incorrectly detected, you can submit a sample of it for re-analysis.

    NOTE If the file was moved to quarantine, you need to collect the file from quarantine before you can submit it.

  • Exclude a file from further scanning

    If you are certain that the file is safe and want to continue using it, you can exclude it from further scanning by the F-Secure security product.

    Note You need administrative rights to change the settings.

For more Support

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User Guide

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Submit a sample

Submit a file or URL for further analysis.

Technical Details

A typical case of this scam is a one where someone opens a premium rate number at local telecom operator and starts sending SMS messages to random mobile phone numbers. A typical message contains some urgent message and instructions to call the number listed in the message.

If a person calls this number he will be connected to premium rate number which will contain recording intended to keep the user on the phone as long as possible. As the number where the user called is a premium rate number, he or she will pay for each minute spent connected to that number.

If you get an SMS message asking for you to call unknown number, either ignore the message, or if you are interested use the operators directory service to find out to whom that extension belongs. But do not call the number directly.

If you get email warning about such scam, please ignore the email and do not pass it on. If you want verification about the warning, please contact your local telecom operator.

Known cases:

-UK June-July 2001 Scamsters sent SMS messages to random people containg following message 'Please call me on 09011 500065 Urgent"' If a person called this number he will be connected to premium rate which played busy tone to fool the caller that the line was busy. The number charged £1.50 per call.

This case is no longer a threat since the extension in question has been closed.