DarkReading: Bots Hard To Kill -- Even When Botnets Get Decapitated
“Many bots never really get completely cleaned up, even after their botnet masters are shut off from communicating with them. Their users either don’t wipe out the bot software, or the machines also harbor other bot infections and ultimately get recruited for other botnets. Or in many cases, the machines are already poorly maintained — unpatched and improperly secured — so they just get reinfected by another botnet. And the cycle continues.”


