Feeds

Swen fends off Mimail to top viral charts

Top Ten Bugs

  • alert
  • submit to reddit

Secure remote control for conventional and virtual desktops

The Swen virus beat off a strong challenge from various Mimail virus variants to retain its position at the top of the viral charts this month.

Message filtering firm MessageLabs blocked more than 567,000 Swen-infected emails this month. Durnaru-A was the second most prevalent nuisance with just under 386,000 sightings over the last four weeks while the undead Sobig-F worm put in approximately 265,000 appearances.

Sobig F reached number three MessageLabs November Top 10, despite having a built-in expiry date of September 10. Incorrectly set clocks on some infected computers explain why the virus is continuing to circulate.

Overall, one in 97 email MessageLabs scanned were contaminated with viral infections. Just over half (55.1 per cent) of the emails scanned by MessageLabs’ anti-spam service this month turned out to be junk mail.

November 2003 saw the arrival of two variants of the Mimail virus, both of which attempted to trick PayPal users into giving out sensitive account information.

The two viruses illustrate the growing trend among virus writers of using malicious code not just for mischief but for malicious gain, according to MessageLabs.

The viruses Mimail-E and Mimail- appeared at the seventh and eight positions in MessageLabs November charts with just over 100,000 appearances apiece.

Records of the subject of calls received by AV firm Sophos paint a slightly different picture of the viral landscape. Around a third of support calls (32.6 per cent) logged by Sophos in November involved the Sober virus. Calls about Mimail virus variants collectively accounted for 28 per cent of the calls fielded by Sophos over the last four weeks. ®

November 2003 Virus Chart, by MessageLabs

  1. Swen-A
  2. Durnaru-A
  3. Sobig-F
  4. Mimail-C
  5. Klez-H
  6. Mimail-A
  7. Mimail-E
  8. Mimail-J
  9. Sobig-A
  10. Yaha-P


Related stories

Nasty worm poses as MS security update (Swen)
Sober email worm gives Windows users the DTs
New worm scams PayPal punters
Sobig-F is fastest growing virus ever - official

Secure remote control for conventional and virtual desktops

More from The Register

next story
You really need to do some tech support for Aunty Agnes
Free anti-virus software, expires, stops updating and p0wns the world
Regin: The super-spyware the security industry has been silent about
NSA fingered as likely source of complex malware family
You stupid BRICK! PCs running Avast AV can't handle Windows fixes
Fix issued, fingers pointed, forums in flames
Privacy bods offer GOV SPY VICTIMS a FREE SPYWARE SNIFFER
Looks for gov malware that evades most antivirus
Patch NOW! Microsoft slings emergency bug fix at Windows admins
Vulnerability promotes lusers to domain overlords ... oops
HACKERS can DELETE SURVEILLANCE DVRS remotely – report
Hikvision devices wide open to hacking, claim securobods
prev story

Whitepapers

Why cloud backup?
Combining the latest advancements in disk-based backup with secure, integrated, cloud technologies offer organizations fast and assured recovery of their critical enterprise data.
Getting started with customer-focused identity management
Learn why identity is a fundamental requirement to digital growth, and how without it there is no way to identify and engage customers in a meaningful way.
Driving business with continuous operational intelligence
Introducing an innovative approach offered by ExtraHop for producing continuous operational intelligence.
5 critical considerations for enterprise cloud backup
Key considerations when evaluating cloud backup solutions to ensure adequate protection security and availability of enterprise data.
High Performance for All
While HPC is not new, it has traditionally been seen as a specialist area – is it now geared up to meet more mainstream requirements?