Feeds

Bagle the 13th spread defies belief

When will the madness end?

  • alert
  • submit to reddit

The Power of One eBook: Top reasons to choose HP BladeSystem

To nobody's great surprise, another Windows-infecting mass mailing worm began spreading over the Net last weekend.

Bagle-N is spreading rapidly and most anti-virus firms rate it as medium to high-level risk. Email filtering outfit MessageLabs has intercepted 11,105 copies of the worm since Saturday.

The worm normally spreads by email but it also capable of propagation across P2P file sharing networks. Bagle-N arrives in either a password-protected zip or rar file, and the password is either included in the body of the email, or in an image file attached to the email.

Apart from the image-file ploy (a minor 'innovation' in virus writing), Bagle is little different from its 13 predecessors - not least in the fact that it infects Windows PCs only.

Bagle-N commonly comes in email messages with variable subject and attachment names. The ‘from’ field of the email is spoofed so that it appears to come from a potential victim's sysadmin. Message bodies warn that the user's email account "might be disabled" or suffer some other odious consequence if a user fails to open an attachment.

If you open the worm's infectious archive file you may infect your PC. The worm disables many security software packages and includes a backdoor component which listens on TCP port 2556. Bagle-N scours the hard drives of infected computers for email addresses. It then sends copies of itself to these addresses using its own SMTP engine. It is programmed to stop spreading on 31 December 2005, so instead of being around for days this infector will likely to around for months.

As usual, users are warned to minimise risk of infection by not clicking on unknown attachments in emails. Updating anti-virus signature definitions is also a sensible step. ®

Related stories

Say hello to the Bagle Worm
Bagle-B clobbers weary Net users
Virus writers in malicious code hide-and-seek
War of the worms turns into war of words

The Power of One eBook: Top reasons to choose HP BladeSystem

More from The Register

next story
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
BMW's ConnectedDrive falls over, bosses blame upgrade snafu
Traffic flows up 20% as motorway middle lanes miraculously unclog
LibreSSL RNG bug fix: What's all the forking fuss about, ask devs
Blow to bit-spitter 'tis but a flesh wound, claim team
Mozilla fixes CRITICAL security holes in Firefox, urges v31 upgrade
Misc memory hazards 'could be exploited' - and guess what, one's a Javascript vuln
Putin: Crack Tor for me and I'll make you a MILLIONAIRE
Russian Interior Ministry offers big pile o' roubles for busting pro-privacy browser
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
Researcher sat on critical IE bugs for THREE YEARS
VUPEN waited for Pwn2Own cash while IE's sandbox leaked
prev story

Whitepapers

Top three mobile application threats
Prevent sensitive data leakage over insecure channels or stolen mobile devices.
Implementing global e-invoicing with guaranteed legal certainty
Explaining the role local tax compliance plays in successful supply chain management and e-business and how leading global brands are addressing this.
Top 8 considerations to enable and simplify mobility
In this whitepaper learn how to successfully add mobile capabilities simply and cost effectively.
Application security programs and practises
Follow a few strategies and your organization can gain the full benefits of open source and the cloud without compromising the security of your applications.
The Essential Guide to IT Transformation
ServiceNow discusses three IT transformations that can help CIO's automate IT services to transform IT and the enterprise.