Different bits & bytes which help me in our daily CERT work
This script allows you to "grep" for tor exit node IPs over large (CSV) log files. The example log files provided in tests/ are from a checkpoint fw.
How to test:
$ ./torgrep.pl -p tests/all-tor-ips.txt tests/test-checkpoint-logfile.csv
The speed was roughly 1 GByte/min. on a regular Debian Server (8GB RAM).