tokens: A backdoor also known as: Worm/W32.Silva.447488 Worm.Keco W32.W.Silva.d!c W32/Silva.d W32/Silva.D W32.Silva@mm Trojan.Win32.Silva.envq Worm.Win32.Silva.D Win32.HLLW.Silva Worm.Win32.Silva W32/Silva.QGXV-8360 I-Worm/Silva.d Worm:Win32/Silva.D@mm Worm:Win32/Silva.D@mm Email-Worm.Keco W32/Keco.G.worm Win32/Silva.D Win32.Worm-email.Keco.Peze I-Worm.Silva!97fYr5ijFvQ W32/Silva.D@mm