Here’s the world’s top 10 worst spammers as at 17 March 2008:
1. Leo Kuvayev / BadCow (Russian Federation)
Russian/American spammer. Does “OEM CD” pirated software spam, copy-cat pharmaceuticals, porn spam, porn payment collection, etc. Spams using virus-created botnets and seems to be involved in virus distribution. Partnered with Vlad – aka “Mr. Green”
2. Alex Blood / Alexander Mosh / AlekseyB / Alex Polyakov (Ukraine)
So many Alex & Alexey spamming! Alex Blood tied to Pilot Holding & bbasafehosting.com long ago, then Alex Polyakov posted he owned them. Massive botnet and child-porn spam ring, also pharma, mortgage, and more. May work with Kuvayev and Yambo.
3. HerbalKing (India)
Massive affilitiate spam program for snakeoil Body Part Enhancement scams. Also does replica luxury goods, pharma and porn. Spams via botnets, bulletproof hosting offshore and even sometimes uses fast flux hosting.
4. Vincent Chan / yoric.net (Hongkong)
Vincent Chan and his Chinese partners have been sending spam for years. They mainly do pharmacy, and are able to send out huge amounts daily. The use a vast amount of compromised machines, for sending, hosting and proxyhijacking.
5. Nikhil Kumar Pragji / Dark-Mailer (Australia / Queensland)
Through the Dark-Mailer Windows based proxy-botnet based spamware, this spammer is responsible for and behind a large portion of the world’s illegally send spam.
6. Ruslan Ibragimov / send-safe.com (Russia)
Stealth spamware creator. One of the larger criminal spamming operations around. Runs a CGI mailer on machines in Russia and uses hijacked open proxies and virus infected PCs to flood the world with spam.
7. Pavka / Artofit (Russia)
A Russian gang who have been spamming for years. Started with porn, now into many types of spam, always via hijacked PCs. Part of a large criminal group involving ROKSO spammers Leo Kuvayev & Alex Blood. Also see “Yambo Financials” ROKSO.
8. Russian Business Network (Russian Federation)
Among the world’s worst spammer, child-pornography, malware, phishing and cybercrime hosting networks. Provides “bulletproof hosting”, but is probably involved in the crime too.
9. Yambo Financials (Ukraine)
Huge spamhaus tied into distribution and billing for child, animal, and incest-porn, pirated software, and pharmaceuticals. Run their own merchant services (credit-card “collection” sites) set up as a fake “bank.”
10. Michael Lindsay / iMedia Networks (United States / California)
Lindsay’s iMedia Networks is a full-fledged spam-hosting operation serving bulletproof hosting at high premiums to well known ROKSO-listed spammers. His customers spam via botnet zombies with spam payloads hosted offshore, tunneled back to his servers.
Source: http://www.spamhaus.org/statistics/spammers.lasso quoting
Register Of Known Spam Operations (ROKSO) database + Spamhaus Blocklist (SBL) database.