Threat Description

LoveLetter.G

Details

Aliases:LoveLetter.G
Category:Malware
Type:Worm
Platform:VBS

Summary



This variant of Email-Worm:VBS/Loveletter is distributed as an infectious e-mail file attachment.



Removal


Automatic action

Once detected, the F-Secure security product will automatically disinfect the suspect file by either deleting it or renaming it.

More

You may wish to refer to the Support Community for further assistance. You also may also refer to General Removal Instructions for a general guide on alternative disinfection actions.



Technical Details



VBS/LoveLetter.G is similar to the original VBS/LoveLetter.A virus.

This variant sends a message that seems to originate from Symantec's support. This is not true. The message looks like the following:

Subject: Virus ALERT!!!
 From: support@symantec.com
 Body: Dear Symantec customer,
	Symantec's AntiVirus Research Center began receiving
 reports regarding VBS.LoveLetter.A virus early morning on
 May 4, 2000 GMT.
 This worm appears to originate from the Asia Pacific
 region. Distribution of the virus is widespread and
 hundreds of thousands of machines are reported infected.
 The VBS.LoveLetter.A is an Internet worm that uses
 Microsoft Outlook to e-mail itself as an attachment.
 The subject line of the e-mail reads ILOVEYOU, with the
 attachment titled LOVE-LETTER-FOR-YOU.TXT.VBS. Once the
 attachment is opened, the virus replicates and sends an
 e-mail to all e-mail addresses listed in the address book.
 The virus also spreads itself via Internet relay chat and
 infects files on local and remote drives including files
 with extensions vbs, vbe, js, sje, css, wsh, sct, hta, jpg,
 jpeg, mp3, mp2.
 Users should exercise caution when opening e-mails with
 this subject line, even if the e-mail is from someone they
 know, as that is how the virus is spread.
 Symantec Corp. today announced availability of the virus
 definition to detect, repair and protect users against the
 VBS.LoveLetter.A virus.
 This definition is available now via Symantec's LiveUpdate
 and can also be downloaded from the following web sites:
 http://www.symantecstore.com/AF74211/promo/loveletter
 http://www.digitalriver.com/symantec
	Also as a quick solution Symantec Corp. offers Visual Basic
 Script to protect your PC against this worm. (See
 attached.)
	Note! When executed, this script will protect Your PC from
 being INFECTED by VBS.LoveLetter.A virus.
	To cure already infected PC's download Norton Antivirus
 Updates mentioned above.
	Symantec Corporation - a world leader in internet security technology.
 Attachment: protect.vbs
	
	

This variant changes the Internet Explorer start page to point to an adult site. The default search page is set to point to a hacker site.

The virus creates a new file with the same name for the files with the following extensions: ".js", ".jse", ".css", ".wsh", ".sct", ".hta", ".com" and ".bat", but using the extension ".vbs". The original file will be deleted. Since all ".com" files have been removed, the system cannot be restarted.

This variant does not attempt to download the "WIN-BUGSFIX.exe".





Technical Details: Katrin Tocheva, Mikko Hypponen, Alexey Podrezov and Sami Rautiainen, F-Secure


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