A global law enforcement operation this week has destroyed the notorious Qakbot zombie network. Qakbot is a type of banking Trojan that is infamous for providing initial footholds for other hackers to purchase access and spread their own malicious software (such as ransomware) on victims' networks. US officials say that in just the past 18 months, Qakbot has helped facilitate more than 40 ransomware attacks, resulting in $58 million in ransom payments. The operation, called "Operation Duck Hunt," saw the Federal Bureau of Investigation and its international partners seize Qakbot infrastructure located throughout the US and Europe. The US Department of Justice, which carried out the operation with the FBI, also announced that over $8.6 million in cryptocurrency had been seized from the Qakbot criminal organization, which will soon be made available to victims.