News
News
1/24/2006
01:40 PM
50%
50%

Kama Sutra Spoofs Digital Certificates

Another twist has been discovered with the newest worm making the rounds: Kama Sutra can fool Windows into accepting a malicious ActiveX control by spoofing a digital signature.

The Kama Sutra worm can fool Windows into accepting a malicious ActiveX control by spoofing a digital signature, a security company said Tuesday.

Sunnyvale, Calif.-based Fortinet said the worm -- which also goes by names such as Nyxem.e, MyWife.d, Grew.a, and Blackmal.e -- adds 18 entries to the Windows Registry to slip the ActiveX control by the operating system's defenses. "By creating the following entries, the control is considered 'safe' and digitally signed," said the Fortinet advisory.

The ActiveX control, added Fortinet, is used by the worm to automatically run its code each time the PC is turned on and Windows boots.

"The threat of worms like this will make them much more dangerous in the future," said Bojan Zdrnja, an analyst for the Internet Storm Center, on the group's site. "If a worm puts a fake certificate on an infected machine, MITM [Man-In-The-Middle] attacks become extremely easy. Of course, we all know that once the machine is infected you can't trust it, but this looks like another (big) problem for the average user."

As of late Monday, the Kama Sutra worm had infected more than 630,000 systems, said the Internet Storm Center.

The worm is considered particularly dangerous because it contains code that triggers an overwrite of all .doc, .xls, .mdb, .mde, .ppt, .pps, .zip, .rar, .pdf, .psd, and .dmp files on the third of each month.

Comment  | 
Print  | 
More Insights
Register for InformationWeek Newsletters
White Papers
Current Issue
InformationWeek Elite 100 Digital Issue, April 2015
The 27th annual ranking of the leading US users of business technology
Video
Slideshows
Twitter Feed
InformationWeek Radio
Archived InformationWeek Radio
. We've got a management crisis right now, and we've also got an engagement crisis. Could the two be linked? Tune in for the next installment of IT Life Radio, Wednesday May 20th at 3PM ET to find out.
Sponsored Live Streaming Video
Everything You've Been Told About Mobility Is Wrong
Attend this video symposium with Sean Wisdom, Global Director of Mobility Solutions, and learn about how you can harness powerful new products to mobilize your business potential.