The number of a mail with "photos_arc.exe" is increasing in JP.
Trend Micro named it "WORM_RATOS.A."
They says, "this virus was reported in Japan, South Korea and the United States at 16th of Aug, 2004 (JST, GTM+9:00). Now, the virus behaviors are under our analysis."
Mail Subject: "photos"
Body: "LOL!;))))"
Attachment: "photos_arc.exe"
Please take care.