Security firm Sophos has discovered a modified variant of the well known darkComet Remote Access Trojan (RAT) that not only affects Windows PCs, but the Mac OS X platform too. Interestingly enough, the nefarious Trojan readily admits it's not yet finished, which could be indicative of more underground programmers finally taking notice of Mac's increased market share. In its current form, Sophos senior security adviser, Chester Wisniewski, describes the Trojan as "very basic" in nature with a mix of English and German in the UI.