Klez continues to spread

The infamous Klez worm has retained the top spot in security firm Sophos PLC's most frequently occurring viruses table for the 15th month in a row, while 475 new viruses were discovered in April.

Two old favorites also reared their heads again -- Lovegate-E and Funlove -- spreading concern that individuals and companies are not keeping their antivirus software and firewalls up to date.

"It's no good installing the software if it's not maintained," said a company spokesman.

A new virus Datemake Dialler also made its way into the top 10. The malware, known as a Dialler, is programmed to dial a premium rate telephone line, typically with the intent of gaining access to adult material.

"Businesses should apply strict computing guidelines to avoid getting stung by a huge telephone bill and embarrassed by these seedy programs," said Graham Cluley, senior technology consultant at Sophos.

Top viruses were:

1. W32/Klez-H, 12.7 percent of complaints
2. W32/Lovgate-E, 4.9 percent
3. W32/Bugbear-A, 4.3 percent
4. W32/Sobig-A, 3.3 percent
5. W32/ElKern-C, 2.9 percent
5. W32/Yaha-E, 2.9 percent
5. W32/Yaha-K, 2.9 percent
8. JS/NoClose, 2.1 percent
9. W32/Flcss, 1.9 percent
10. Dial/Datemake-A, 1.6 percent

Join the PC World newsletter!

Error: Please check your email address.

Our Back to Business guide highlights the best products for you to boost your productivity at home, on the road, at the office, or in the classroom.

Keep up with the latest tech news, reviews and previews by subscribing to the Good Gear Guide newsletter.

Wendy Brewer

PC World
Show Comments

Most Popular Reviews

Deals on PC World

Deals on PC World


Latest News Articles


GGG Evaluation Team

Kathy Cassidy


First impression on unpacking the Q702 test unit was the solid feel and clean, minimalist styling.

Anthony Grifoni


For work use, Microsoft Word and Excel programs pre-installed on the device are adequate for preparing short documents.

Steph Mundell


The Fujitsu LifeBook UH574 allowed for great mobility without being obnoxiously heavy or clunky. Its twelve hours of battery life did not disappoint.

Andrew Mitsi


The screen was particularly good. It is bright and visible from most angles, however heat is an issue, particularly around the Windows button on the front, and on the back where the battery housing is located.

Simon Harriott


My first impression after unboxing the Q702 is that it is a nice looking unit. Styling is somewhat minimalist but very effective. The tablet part, once detached, has a nice weight, and no buttons or switches are located in awkward or intrusive positions.


Latest Jobs


Don’t have an account? Sign up here

Don't have an account? Sign up now

Forgot password?