860,000 Computers Cleaned from Password Stealer Infections in One Week


This month’s MSRT shows the following top ten most prevalent threat families as of May 19.  The newly added and blogged rogue family, Win32/Winwebsec, is ranked at #17 with 34,792 infected machines. 

Family

Most Significant Category

Detections

Infected Machines

Ranking change

Win32/Taterf

Worms

347,424

343,515

=

Win32/Alureon

Miscellaneous Trojans

256,998

248,341

+

Win32/Frethog

Password Stealers and Monitoring Software

96,922

95,581

Win32/Bancos

Password Stealers and Monitoring Software

97,389

92,565

+

Win32/Koobface

Worms

79,993

78,113

+

Win32/Renos

Trojan Downloaders and Droppers

76,304

75,118

=

Win32/Cutwail

Trojan Downloaders and Droppers

95,726

74,400

Comments (0)