Google Chrome ( 5.0.375.127 and previous versions) suffers from HTTP Auth Dialog spoofing vulnerability due to possible realm manipulation in the HTTP header.
This bug was actually patched. The issue mentioned in this bug was dialog spoofing due to long sub domain names. The patch worked only for that specific case which was outlined in that bug. There are number of tests have been conducted on Google Chrome which verifies the inefficiency of Google Chrome to scrutinize the type of realm value set in the header. It can be tampered with double quotes and single quotes used in a definite manner.
1] You need bots ID (100 to 1000 might be enough). Therefore you need to create ID bots using Manual way just like you create Yahoo Id or use Yahoo Messenger ID Creator aka ID Maker. usually, the bots ID stored in notepad aka txt file with a format ID and password like this:
BotIDd:Password
BotID2:Password
BotID3:Passowrd
etc.. (upto 1000-10000 id bots)
2] You need Yahoo Boot Software that work properly.
3] Load you BotID in Yahoo Boot Software by selecting stored BotID in txt file and load in Yahoo Boot Program.
4] Select the Type of your Boot Option
5] Select / Type Target aka Victim Username or Yahoo ID
6] Final steps. Boot him! Done.
For better understanding, here I found Youtube Video tutorial how to boot in Yahoo Messenger.
Note: The ID maker used in the video above is not work anymore. You must find newest working ID boot and also Yahoo boot.