Feeds

Sobig-F is fastest growing virus ever – official

Outlook grim

  • alert
  • submit to reddit

Using blade systems to cut costs and sharpen efficiencies

Sobig-F has taken the record as the world's most rapidly spreading virus to date, according to managed services firm MessageLabs, which stopped more than one million copies of the email-borne nuisance since its first appearance earlier this week.

Sobig.F has surpassed the infamous LoveBug, Klez and Kournikova viruses.

Sobig-F, first detected on 18 August, is the sixth variant issued in the Sobig series and appears to be the most sophisticated to date, according to MessageLabs. All initial copies originated from the US, where the virus is currently most prevalent.

Since the first Sobig virus first appeared on 9 January, MessageLabs has intercepted almost three million copies of the virus' variants. MessageLabs detected all strains of this virus proactively, using its heuristics technology.

The current Sobig virus to email ratio is approximately 1 in 17 and the virus is spreading at such a rate it is expected to continue to stay at high-level status for the next few weeks. However, like past Sobig viruses, the Sobig-F virus has an expiry date and is set to deactivate on 10 September.

Said Mark Sunner, MessageLabs' CTO: "The Sobig virus writer's use of an in-built expiry date indicates that he is committed to inventing new and improved versions. Each variant released so far has exceeded the previous one in growth and impact during the critical initial window of vulnerability."

Sobig is a mass-emailing virus that can spoof the sender's address, fooling the user into believing the email is from a legitimate source and then opening the email. The email often contains the following header: "Subject: Re:details" and the text "Please see the attached file for details." The attachment names may include: your_document.pif, details.pif, your_details.pif, thank_you.pif, movie0045.pifm, document_Fall.pif, application.pif, docment_9446.pif.

Once the virus has infected your machine it attempts to connect to a website to download a backdoor Trojan, leaving your computer vulnerable to security breaches by crackers or other viruses. ®

The smart choice: opportunity from uncertainty

More from The Register

next story
Yorkshire cops fail to grasp principle behind BT Fon Wi-Fi network
'Prevent people that are passing by to hook up to your network', pleads plod
HIDDEN packet sniffer spy tech in MILLIONS of iPhones, iPads – expert
Don't panic though – Apple's backdoor is not wide open to all, guru tells us
NEW, SINISTER web tracking tech fingerprints your computer by making it draw
Have you been on YouPorn lately, perhaps? White House website?
LibreSSL RNG bug fix: What's all the forking fuss about, ask devs
Blow to bit-spitter 'tis but a flesh wound, claim team
Black Hat anti-Tor talk smashed by lawyers' wrecking ball
Unmasking hidden users is too hot for Carnegie-Mellon
Attackers raid SWISS BANKS with DNS and malware bombs
'Retefe' trojan uses clever spin on old attacks to grant total control of bank accounts
Manic malware Mayhem spreads through Linux, FreeBSD web servers
And how Google could cripple infection rate in a second
Don't look, Snowden: Security biz chases Tails with zero-day flaws alert
Exodus vows not to sell secrets of whistleblower's favorite OS
prev story

Whitepapers

Seven Steps to Software Security
Seven practical steps you can begin to take today to secure your applications and prevent the damages a successful cyber-attack can cause.
Consolidation: The Foundation for IT Business Transformation
In this whitepaper learn how effective consolidation of IT and business resources can enable multiple, meaningful business benefits.
Designing a Defense for Mobile Applications
Learn about the various considerations for defending mobile applications - from the application architecture itself to the myriad testing technologies.
Build a business case: developing custom apps
Learn how to maximize the value of custom applications by accelerating and simplifying their development.
Consolidation: the foundation for IT and business transformation
In this whitepaper learn how effective consolidation of IT and business resources can enable multiple, meaningful business benefits.