The FessLeak Ransomware infection has caught the attention of computer security researchers. FessLeak Ransomware is spread via corrupted ads on popular web pages. To do this, those responsible for the FessLeak Ransomware infection used a distribution network of popular ads. In the case of FessLeak Ransomware attack, no threatening files are dropped on the victim's computer, which makes FessLeak Ransomware particularly difficult to detect or intercept. After successfully placing their corrupted advertisement on a popular webpage, computer users who click on the advertisement are first directed to the temporary, disposable domain and then to the page that hosts the threats. Every eight hours, the temporary domain's DNS would become inactive, ending the attack. The cycle would then begin again with the creation of a new disposable domain.