Timed botnet attacks could also be organized to launch automatically, without an external go-ahead.
This botnet was engaged in all sorts of other malicious activity associated with cybercrime.
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This botnet attacked a variety of websites, however, four of them caught my attention.
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Some companies, such as Seculert, warn companies when their IP addresses show up in botnet traffic.
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These include enhanced website security, including the guarding of sites against big botnet attacks.
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Once infected, a computer becomes connected to a botnet that is still active today.
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This fake app installed malware onto Android handsets which made it part of a botnet.
The firms said computers infected by the Bamital botnet were being used for identify theft.
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The botnet can allow the smartphones to be hijacked remotely and potentially used for fraudulent purposes.
Mr Corrons said a botnet with 30, 000 machines in it was "about average size".
"We know for sure the botnet was used in at least one attack on Paypal, " he said.
This opens a backdoor allowing hackers to hijack infected PCs and recruit them into a "botnet army".
Everyone needs to do more to counter the sophisticated nature of botnet attacks and exfiltration of data.
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Damballa discovered the botnet in March and has been tracking its communication with command-and-control servers around the world.
He added that since Chameleon mimics human clicks, it is tricky for advertisers to easily spot the botnet.
The botnet also had the ability to use the infected computers to "recruit" other machines into the network.
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In this instance, the Bamital botnet would hijack user searches, tricking users into clicking links on online advertisements.
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That means shutting it down isn't as simple as alerting the Internet service provider where the botnet is hosted.
Several large-scale botnet takedowns showcase the advantages of working groups and task forces.
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Once part of the botnet, the handset essentially belongs to the bad guys.
The virus puts the Windows machine under the control of a botnet herder.
Chinese hosting firm 3322.org came to Microsoft's notice during its efforts to track down the fraudsters behind the Nitol botnet.
SpyEye's controllers are believed to have built up a huge network, or botnet, of compromised computers they regularly ransacked for information.
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The wider bitcoin community was aware of the efforts botnet owners were making to produce their own cash, said Mr Manky.
He added that the company was able to spot the botnet thanks to a very specific behaviour of the infected computers.
This is not a particularly large botnet at all, but the attackers could access at least 6000 bots at any given time.
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Whereas the botnet Cutwail uses long-winded, spoof alerts explaining problems with your computer, aimed at tricking users to open an infected attachment.
That means botnet attacks could be deflected more easily than in the U.S., where there are virtually no checks on international Internet traffic.
That data can then be amplified by 1, 000 or if those original enquiries are made through a botnet, or network of infected computers.
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Matthew Prince, chief executive and co-founder of Cloudflare, said that the aim of the attack might have been to build a stronger botnet.
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