This malware was written in AutoIt scripting. It uses an icon of MS Winword.
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.
Upon execution, it creates a file HarryPotter-TheDeathlyHallows.doc that has the following text and opens it using MS Winword:
It creates the folder C:\WINDOWS\Cache and copies itself as HarryPotter-TheDeathlyHallows.exe to the said folder. This file will be copied from drives C to J if present. It will also be copied to the folder C:\Documents and Settings\All Users\Desktop.
This malware creates a file named harry potter.txt which contains the following text:
It also creates autorun.inf which will be copied to file which has the following data. This file be copied from drives C to J if present.
After running itself, it will force restarting the infected machine.
It deletes all existing scheduled tasks by rendering the following command:
Note: AT is the command-line for task scheduler.
It attempts to create the following tasks but due to some instability of the code, it might not create them all:
Note: This means that the file C:\WINDOWS\Cache\HarryPotter-TheDeathlyHallows.exe will be run everyday at the specified time.
It changes the Windows Product Owner and Product ID causing Windows Genuine Advantage validation to be triggered. There then no longer appears to be a valid Windows Operating System. This is done by modifying the following registry keys:
Note: To check this, you can press WindowsLogo key + Pause/Break key
It changes Internet Explorer's Window Title to 'JK Rowling Owns You'. It changes the start page as well.
It disables/hides the following System tools:
It creates the following users:
It runs a batch file on every start of the infected machine that displays the following message:
This batch file is saved at C:\WINDOWS\Tempt\talk.bat. It creates the following registry key so that in every machine start up this batch will be executed:
Date Created: 2007-07-05 14:07:24.0
Date Last Modified: 2007-07-05 17:05:49.0