Computer virus did not target US drone fleet: general October 18, 2011 A US Predator unmanned drone. A computer virus that affected the US military's drone fleet last month was not "specifically" aimed at the unmanned aircraft's network, the head of US Strategic Command said Tuesday. A computer virus that affected the US military's drone fleet last month was not "specifically" aimed at the unmanned aircraft's network, the head of US Strategic Command said Tuesday.