Feeds

Virus writers deploy bulk mail software

New multi-stage Trojan rides spam tsunami

  • alert
  • submit to reddit

Internet Security Threat Report 2014

Hackers have used spamming software to distribute thousands of copies of a new Trojan. Email filtering firm MessageLabs alone has intercepted more than 4,000 copies of the Demonize-T Trojan over the last 24 hours.

Demonize-T is a multi-stage Trojan that uses an object data exploit in Internet Explorer (patch here) to download and execute an encoded visual basic script from a website. The Trojan then creates an executable file which appears to download a malicious program from the same website as the original script. Early analysis suggests Demonize-T is similar to previous attacks where malicious code has been used to install key loggers and password stealers.

Spammers are increasingly using infected as a platform to distribute spam and this technique has come full circle with virus writers using spam to infect machines in the first place.

Alex Shipp, senior anti-virus technologist at MessageLabs, said hackers are increasingly adopting the tactics of spammers in their attempts to seize control of as many machines as possible. MessageLabs typically block four or five bulk mail batches of Trojans a day. Mostly less than 20 messages are involved so the new attack - with more than 4,000 messages blocked in the space of only 24 hours - is far more intense. MessageLabs detected Demonize-T proactively, using its Skeptic predictive heuristics technology.

"Some parts of these Trojans are new but some code is old. Using old code is a funny tactic for virus writers to use because you can almost guarantee malware will be caught," Shipp commented. ®

Related stories

Zombie PCs spew out 80% of spam
Phatbot arrest throws open trade in zombie PCs
Trojans as spam robots: the evidence
Italian charged in porn dialler virus scam

Top 5 reasons to deploy VMware with Tegile

More from The Register

next story
Regin: The super-spyware the security industry has been silent about
NSA fingered as likely source of complex malware family
Why did it take antivirus giants YEARS to drill into super-scary Regin? Symantec responds...
FYI this isn't just going to target Windows, Linux and OS X fans
Privacy bods offer GOV SPY VICTIMS a FREE SPYWARE SNIFFER
Looks for gov malware that evades most antivirus
Home Office: Fancy flogging us some SECRET SPY GEAR?
If you do, tell NOBODY what it's for or how it works
HACKERS can DELETE SURVEILLANCE DVRS remotely – report
Hikvision devices wide open to hacking, claim securobods
'Regin': The 'New Stuxnet' spook-grade SOFTWARE WEAPON described
'A degree of technical competence rarely seen'
Syrian Electronic Army in news site 'hack' POP-UP MAYHEM
Gigya redirect exploit blamed for pop-rageous ploy
Astro-boffins start opening universe simulation data
Got a supercomputer? Want to simulate a universe? Here you go
prev story

Whitepapers

10 ways wire data helps conquer IT complexity
IT teams can automatically detect problems across the IT environment, spot data theft, select unique pieces of transaction payloads to send to a data source, and more.
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.
How to determine if cloud backup is right for your servers
Two key factors, technical feasibility and TCO economics, that backup and IT operations managers should consider when assessing cloud backup.
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.
Security and trust: The backbone of doing business over the internet
Explores the current state of website security and the contributions Symantec is making to help organizations protect critical data and build trust with customers.