Threat description




Eira is an e-mail worm written in Visual Basic. Being run the worm shows a messagebox, then connects to MAPI-compatible e-mail browser, reads e-mail addresses from Address Book and sends itself to all these addresses.


Automatic action

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

More scanning & removal options

More information on the scanning and removal options available in your F-Secure product can be found in the Help Center.

You may also refer to the Knowledge Base on the F-Secure Community site for more information.

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Technical Details

The infected message properties look like that:

Subject can contain one of the following:

	Something very special

 I know you will like this

 Yes, something I can share with you

 Wait till you see this!

 A brand new game! I hope you enjoy it

Body can contain one of the following:

	Hey you, take a look at the attached file.
 	You won't believe your eyes when you open it! 	You like games like Quake? You will enjoy this one. 	Did you see the pictures of me and my battery operated boyfriend? 	My best friend, 	This is something you have to see! 	Till next time 	Is Internet that safe? 	Check it out

Attachment's name can be one of the following:

	setup.exe 	honey.exe 	quake4demo.exe

The worm deletes sent infected messages.

The worm also installs itself to system by copying its file as setup.exe, honey.exe or quake4demo.exe to Windows folder and modifying startup keys in the Registry. The worm also copies itself as 'c:\eiram\quake4demo.exe' and 'f:\\quake4demo.exe' (if F: drive exists).

The worm can overwrite files with .OCX, .EXE, .XLS, .DOC, .MDB, .HTM, .HTML and .TXT extensions with the following text:

You've didn't protected your files well enough
Let this be a lesson! Never trust someone else
eiram 1999-2001

F-Secure Anti-Virus detects this worm with the latest updates. By the time of this description creation the worm was not found in the wild.

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