Intersecting S-brane solutions of D=11 supergravity

We construct all possible orthogonally intersecting S-brane solutions in 11-dimensions corresponding to standard supersymmetric M-brane intersections. It is found that the solutions can be obtained by multiplying the brane and the transverse directions with appropriate powers of two hyperbolic functions of time. This is the S-brane analog of the harmonic function rule. The transverse directions can be hyperbolic, at or spherical. We also discuss some properties of these solutions.