Feeds

Virus writers deploy bulk mail software

New multi-stage Trojan rides spam tsunami

  • alert
  • submit to reddit

3 Big data security analytics techniques

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

3 Big data security analytics techniques

More from The Register

next story
Obama allows NSA to exploit 0-days: report
If the spooks say they need it, they get it
Samsung Galaxy S5 fingerprint scanner hacked in just 4 DAYS
Sammy's newbie cooked slower than iPhone, also costs more to build
Putin tells Snowden: Russia conducts no US-style mass surveillance
Gov't is too broke for that, Russian prez says
Snowden-inspired crypto-email service Lavaboom launches
German service pays tribute to Lavabit
Mounties always get their man: Heartbleed 'hacker', 19, CUFFED
Canadian teen accused of raiding tax computers using OpenSSL bug
One year on: diplomatic fail as Chinese APT gangs get back to work
Mandiant says past 12 months shows Beijing won't call off its hackers
Call of Duty 'fragged using OpenSSL's Heartbleed exploit'
So it begins ... or maybe not, says one analyst
Heartbleed exploit, inoculation, both released
File under 'this is going to hurt you more than it hurts me'
prev story

Whitepapers

Securing web applications made simple and scalable
In this whitepaper learn how automated security testing can provide a simple and scalable way to protect your web applications.
3 Big data security analytics techniques
Applying these Big Data security analytics techniques can help you make your business safer by detecting attacks early, before significant damage is done.
The benefits of software based PBX
Why you should break free from your proprietary PBX and how to leverage your existing server hardware.
Top three mobile application threats
Learn about three of the top mobile application security threats facing businesses today and recommendations on how to mitigate the risk.
Combat fraud and increase customer satisfaction
Based on their experience using HP ArcSight Enterprise Security Manager for IT security operations, Finansbank moved to HP ArcSight ESM for fraud management.