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Virus Encyclopedia

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SMSlock.A

Threat LevelLow threatDamageHighDistributionNot widespread
Common name:SMSlock.A
Technical name:Trj/SMSlock.A
Threat level:Medium
Type:Trojan
Effects:  

It is designed to affect mainly Russian speaking users and its main aim is to obtain financial gains. It locks the affected users' computer and in order to unlock it they are required to pay a certain sum of money. It does not spread automatically using its own means.

Affected platforms:

Windows 2003/XP/2000/NT/ME/98/95/3.X

First detected on:April 20, 2009
Detection updated on:April 20, 2009
StatisticsNo

Brief Description 

    

SMSlock.A is a Trojan designed to affect mainly Russian speaking users and whose main aim is to obtain financial gains.

In order to do so, it locks the affected users' computer and it will not be unlocked until they send an sms to a certain number with a random text.

SMSlock.A does not spread automatically using its own means. It needs an attacking user's intervention in order to reach the affected computer.

Visible Symptoms 

    

SMSlock.A is easy to recognize, as when it is run, it displays the following message in Russian, informing users that their computer will be locked until they send an sms to the number 3649 with a random text: