The viral bomb is a bomb that has the Syphon Filter Virus in it. Rhoemer's men used these bombs in the Washington DC Attack. Like a lot of bombs it has a large blast radius so if one was set it off, it would destroy and infect the city. In one mission the triggerman would set them of after a hour.
The bomb is shaped like a little rocket with a green circle on the top. The bomb also has black and yellow stripes on the sides.
- At least one bomb was non-viral; it was modified to be an explosive that destroyed the Washington subway.