Пока только ip придумал, как найти

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И это только для логинов - адресов электронной почты.

Или вот такой попробуй.

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(1),(3) что нужно курить, чтобы такое написать или разобрать? ))

(4) Перл

Ну первое, если я правильно понял, это мыло. Там можно и проще - почти все что угодно с собакой доменом.
Пароли можно как-то выцепить? Думаю в сторону [буква][цифра][буква]

Ctrl-A, Del

(6) А если пароль "Вася"?

если у паролей есть какие-то разумные требования, то
https://rubular.com/r/UAwoaPM0Ji

^                         Start anchor
(?=.*[A-Z].*[A-Z])        Ensure string has two uppercase letters.
(?=.*[!@#$&*])            Ensure string has one special case letter.
(?=.*[0-9].*[0-9])        Ensure string has two digits.
(?=.*[a-z].*[a-z].*[a-z]) Ensure string has three lowercase letters.
.{8}                      Ensure string is of length 8.
$                         End anchor.

вопрос не раскрыт-где удалить?

если их писали в текстовых файлах,то вам,наверное,format c и егг аналоги помогут.

(10) Те логины, которые захардкодены в конфе. Чтобы можно было конфу смело отдать кому-нибудь

В общем, как попробую, отпишусь, что получилось