Full Disclosure mailing list archives
Re: Mailing lists and unsolicited/malicious spam
From: Valdis.Kletnieks () vt edu
Date: Fri, 26 Nov 2004 15:13:43 -0500
On Fri, 26 Nov 2004 16:51:27 GMT, n3td3v said:
Yahoo! Groups, a fully featured user group and mailing list has taken steps to prevent malicious users harvesting new e-mail addresses to add to spam list databases. They (Yahoo) cut the e-mail address on the website, so harvesting becomes impossible by only showing the user side of the e-mail address. Example "n3td3v@...".
So you take that left-hand side, and do this: for i=1 to 100 send_spam("leftside@" || common_domain[i]); done; OK, so for 95 of them it generates a bogus address, and you might even miss the actual domain of the person you targeted, but if you get 5 accidental matches.. (And yes, they do this - when you have 40K zombies, trying 100 million addresses in the hopes of hiting 100K actual addresses is a sensible way to do things...)
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Current thread:
- RE: Mailing lists and unsolicited/malicious spam David Taylor (Nov 26)
- Re: Mailing lists and unsolicited/malicious spam Ralph Angenendt (Nov 27)
- RE: Mailing lists and unsolicited/malicious spam pingywon MCSE (Nov 27)
- Re: Mailing lists and unsolicited/malicious spam Danny (Nov 27)
- RE: Mailing lists and unsolicited/malicious spam pingywon MCSE (Nov 27)
- Re: Mailing lists and unsolicited/malicious spam nicolas vigier (Nov 30)
- RE: Mailing lists and unsolicited/malicious spam pingywon MCSE (Nov 27)
- Re: Mailing lists and unsolicited/malicious spam Ralph Angenendt (Nov 27)
- <Possible follow-ups>
- Mailing lists and unsolicited/malicious spam n3td3v (Nov 26)
- Re: Mailing lists and unsolicited/malicious spam Ron (Nov 27)
- RE: Mailing lists and unsolicited/malicious spam Todd Towles (Nov 27)
- Re: Mailing lists and unsolicited/malicious spam n3td3v (Nov 27)
- Re: Mailing lists and unsolicited/malicious spam Valdis . Kletnieks (Nov 27)
- Re: Mailing lists and unsolicited/malicious spam Andrew Farmer (Nov 27)
- Re: Mailing lists and unsolicited/malicious spam Valdis . Kletnieks (Nov 27)
- Re: Mailing lists and unsolicited/malicious spam devis (Nov 27)
- Re: Mailing lists and unsolicited/malicious spam nicolas vigier (Nov 30)
- Re: Mailing lists and unsolicited/malicious spam Valdis . Kletnieks (Nov 27)
- Re: Mailing lists and unsolicited/malicious spam n3td3v (Nov 27)
- RE: Mailing lists and unsolicited/malicious spam Todd Towles (Nov 27)
- RE: Mailing lists and unsolicited/malicious spam Todd Towles (Nov 27)