The spambot has collected millions of email credentials and server login information in order to send spam through “legitimate” servers, defeating many spam filters.
August 29th, 2017 By Zack Whittaker
(Image: file photo)
A huge spambot ensnaring 711 million email accounts has been uncovered.
A Paris-based security researcher, who goes by the pseudonymous handle Benkow, discovered an open and accessible web server hosted in the Netherlands, which stores dozens of text files containing a huge batch of email addresses, passwords, and email servers used to send spam.
Those credentials are crucial for the spammer’s large-scale malware operation to bypass spam filters by sending email through legitimate email servers.
The spambot, dubbed “Onliner,” is used to deliver the Ursnif banking malware into inboxes all over the world. To date, it’s resulted in more than 100,000 unique infections across the world, Benkow told ZDNet.
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