As in recent months, Trojans dominated the threat landscape in November, according to GFI Software. Their data revealed that seven of the top 10 malware threats were classified as Trojans. The number-one detection, Trojan.Win32.Generic!BT, is a Trojan comprising over 20 percent of the ThreatNet detections.
Worm.Win32.Downad.Gen (v,) the Downadup worm (also called Conficker and Kido) in the number seven spot, is a worm that spreads across a network by taking advantage of a vulnerability in Windows Server service which allows remote code execution when file sharing is enabled. This vulnerability was patched some time ago.
Trojan.ASF.Wimad (v), in the number nine spot, is a VIPRE detection for a group of Trojanized Windows media files that exploit an old vulnerability in Windows Media Player. It redirects the victim’s browser to a web site to download malicious files. This is also is an old vulnerability that’s been fixed.
“If this malcode is still circulating, it means that the malcode writers are seeing a landscape with lots of unpatched and vulnerable machines. The conclusion is pretty clear for both enterprises and consumers: update Windows operating systems (including servers), browsers, Adobe products and media players and keep them updated,” said Kelchner.