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The Register of Known Spam Operations
Guangzhou-Seoul Information Technology Co., Ltd. (广州智尔信息科技有限公司)

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Guangzhou-Seoul Information Technology Co., Ltd. (广州智尔信息科技有限公司) Index

Country: China
State: GD
Chinese organization sending spam in english, usually advertising chinese companies, to harvested addresses throughout the world. Also, they send spam in chinese to acquire new customers.

Guangzhou-Seoul Information Technology Co., Ltd. (广州智尔信息科技有限公司) SBL Listings History
Current SBL Listings
Archived SBL Listings

Main info

Guangdong-based company sending email advertisements to harvested addresses on behalf of chinese companies that want to sell their products/services abroad. Their commercial brand name is "Double Happiness" (双喜) and their spam services are advertised on the web site (in chinese). They are also known as "Sunsesoft".

They purchase several VPS every day from different ISPs across the world for the purpose of sending spam. They also cycle through a large number of domains. Rather than registering fresh domains, they repurpose domains bought at auctions (at or similar sites) with an established good reputation. Domains are dropped after a few weeks of spamming usage.

We have seen this spam since April 2014. This organization has become one of the main sources of China-originated spam reaching international destinations and emitted from real mail servers.

The Register of Known Spam Operations (ROKSO) collates information and evidence on entities with a history of spamming or providing spam services, and entities affiliated or otherwise connected with them, for the purpose of assisting ISP Abuse Desks and Law Enforcement Agencies.
The address of this ROKSO record is:

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