A veteran Scottish virus writer faces a likely spell behind bars after pleading guilty to computer crime offences. Matthew Anderson aka Warpigs, 33, a franchise manager from Drummuir, Aberdeenshire, admitted his key role in a malware for profit scam at a hearing at Southwark Crown Court on Friday. An investigation into the scam, led by officers from Scotland Yard’s MPS Police Central e-Crime Unit together with the Finnish National Bureau of Investigation (NBI Finland) and the Finnish Pori Police Department, led to the arrest of three men on 27 June 2006 in Suffolk, Scotland and Finland…