We use cookies to provide you with a better experience. If you continue to use this site, we'll assume you're happy with this. Alternatively, click here to find out how to manage these cookies

hide cookie message
78,696 News Articles

SoBig virus spreading swiftly

New worm makes it to number three in bug chart in under a week

There is virulent virus on the loose, codenamed SoBig, according to antivirus firm MessageLabs.

The worm, which was first discovered last week, has spread so quickly that by the beginning of this week it had become the third most prevalent virus on the internet, with MessageLabs recording over 44,000 instances of the bug.

SoBig is a mass-mailer worm that affects Windows 95, 98, Me, NT, 2000 and XP. It arrives in inboxes from 'big@boss.com' with the subject headings: 'Re: Here is that sample'; 'Re: Document'; 'Re: Movies'; and 'Re: Sample'. The email also contains a PIF attachment.

Once the attachment is opened the program searches through all files containing email addresses. It then connects to a website, downloads a text file containing another web address and attempts to download and run another program. Like most email worm viruses it also harvests email addresses and forwards itself on to them.

MessageLabs suspects the worm is a backdoor Trojan which allows the hacker to take control of the user's PC. It advises all users to delete the message as soon as they receive it.

Its main target is Outlook Express users.

More information and patches can be found on MessageLabs website.

IDG UK Sites

Motorola Moto G vs Nokia Lumia 530 comparison: What's the best budget smartphone

IDG UK Sites

Everything you need to know about Apple's iPhone Camera in iOS 8

IDG UK Sites

Why you shouldn't trust password managers

IDG UK Sites

How to make an 'Apple iWatch' using an iPod nano and a 3D printer