Catalin Cimpanu reports:
An unknown vigilante hacker has been sabotaging the operations of the recently-revived Emotet botnet by replacing Emotet payloads with animated GIFs, effectively preventing victims from getting infected.
The sabotage, which started three days ago, on July 21, has grown from a simple joke to a serious issue impacting a large portion of the Emotet operation.
Read more on ZDNet.