http://w27irt6ldaydjoacyovepuzlethuoypazhhbot6tljuywy52emetn7qd.onion/mirrors/Internet%20Census%202012/Working%20with%20the%20Internet%20Census%202012.html
These non-secure machines were used to build a port scanner
for the entire IPv4 address space. The botnet consisted of a central server for data
collection and analysis, middle nodes to transmit large pieces of data
to the central server, and many devices for data collection. The data
collection machines scanned other machines via a slew of Python scripts
from this binary on Telnet port 23, which transferred data back to
middle nodes.