Low threat Level,
Low damage capabilities,
Dangers: Infects all users listed in MSN MEssenger
Transfers through MSN Messenger system only........
Distinguishing Charatceristics:
Name of attachment: sins.exe, msninst.exe
Size of attachment: 28K
For more info see:
http://www.symantec.com/avcenter/venc/data/w32.simic.worm.html