http://securityresponse.symantec.com/avcenter/venc/data/w32.yaha.removal.tool.html

Attachment
The attachment name is constructed from the following file names:
loveletter
resume
biodata
dailyreport
mountan
goldfish
weeklyreport
report
love

followed by:
.doc
.mp3
.xls
.wav
.txt
.jpg
.gif
.dat
.bmp
.htm
.mpg
.mdb
.zip

with one of the following extensions:
.pif
.bat
.scr