As you know, the Tor network can be used for mischievous and in some countries illegal activity hurting the reputation of Tor. Two of these activities include Cryptolocker[1] and Gameover Zeus[2].
Recently my exit node was inserted into a few block lists due to this two issues mentioned above and I would guess this hinders 'good' traffic within the Tor network using an exit node.
I have complied a list of Sinkholes from CBL for both Cryptolocker and Gameover Zeus. Consider adding these IPs to your ExitPolicy reject list.
ExitPolicy reject 85.159.211.119 # Cryptolocker ExitPolicy reject 212.71.250.4 # Cryptolocker ExitPolicy reject 54.83.43.69 # Cryptolocker ExitPolicy reject 192.42.116.41 # Cryptolocker ExitPolicy reject 192.42.119.41 # Cryptolocker ExitPolicy reject 198.98.103.253 # Cryptolocker ExitPolicy reject 208.64.121.161 # Cryptolocker ExitPolicy reject 142.0.36.234 # Cryptolocker ExitPolicy reject 173.193.197.194 # Cryptolocker
[1]: http://www.us-cert.gov/ncas/alerts/TA13-309A [2]: https://www.us-cert.gov/ncas/alerts/TA14-150A