Feeds

VXers go phishing with latest MyTob worms

Whatever

  • alert
  • submit to reddit

5 things you didn’t know about cloud backup

The latest MyTob email worms have adopted fresh tactics in an attempt to trick victims. Instead of appearing in emails with virus-contaminated attachments, newer versions of the worm include a faked web link pointing to malicious code, mimicking tricks more commonly used in phishing scams.

Emails sent by the new versions of the MyTob worm masquerade as a seemingly legitimate email from the organisation's IT department or ISP, and suggest to users that a security problem has been found with their email account. Users are advised to click on the web link to confirm their account. References are made to the recipient's domain name and email address to give the message the smack of authenticity.

"By using this disguise, new versions of the MyTob worm attempt to lure the unwary into clicking on a dangerous web link," said Graham Cluley, senior technology consultant for Sophos. "This is a real headache for IT departments which often struggle to get their users to follow instructions. In this case, following the advice of the email would be a very bad idea."

Different variants of the MyTob worm currently account for 14 of the top 20 most commonly reported viruses to Sophos in the last seven days. Each only infects Windows PCs, as is the norm. The new versions of the MyTob worm contain a number of hidden messages. For instance, some claim the author's name is 'DiablO" and contain debug strings such as "[x] starting Hellbot::v3 beta 2'.

"All indications suggest that this isn't the last we will see of the MyTob worm. More versions seem certain to be released. It's imperative that everyone keeps their anti-virus protection up-to-date and practises safe computing," Cluley added.

Standard defence precautions against viral attacks apply in defending against MyTob: corporates should consider blocking executables at the gateway and update anti-virus signature definition files to detect the virus. Home users should also update anti-virus tools and resist the temptation to open suspicious-looking emails. ®

Related stories

Window of exposure lets viruses run rampant
Hackers plot to create massive botnet
Sober worm tops May viral charts
Underground showdown: defacers take on phishers

Next gen security for virtualised datacentres

More from The Register

next story
Snowden on NSA's MonsterMind TERROR: It may trigger cyberwar
Plus: Syria's internet going down? That was a US cock-up
Who needs hackers? 'Password1' opens a third of all biz doors
GPU-powered pen test yields more bad news about defences and passwords
e-Borders fiasco: Brits stung for £224m after US IT giant sues UK govt
Defeat to Raytheon branded 'catastrophic result'
Microsoft cries UNINSTALL in the wake of Blue Screens of Death™
Cache crash causes contained choloric calamity
Germany 'accidentally' snooped on John Kerry and Hillary Clinton
Dragnet surveillance picks up EVERYTHING, USA, m'kay?
Linux kernel devs made to finger their dongles before contributing code
Two-factor auth enabled for Kernel.org repositories
prev story

Whitepapers

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 10 endpoint backup mistakes
Avoid the ten endpoint backup mistakes to ensure that your critical corporate data is protected and end user productivity is improved.
Top 8 considerations to enable and simplify mobility
In this whitepaper learn how to successfully add mobile capabilities simply and cost effectively.
Rethinking backup and recovery in the modern data center
Combining intelligence, operational analytics, and automation to enable efficient, data-driven IT organizations using the HP ABR approach.
Reg Reader Research: SaaS based Email and Office Productivity Tools
Read this Reg reader report which provides advice and guidance for SMBs towards the use of SaaS based email and Office productivity tools.