Feeds

Bagle variants served up with spam

Trojan version goes into 'stealth mode'

  • alert
  • submit to reddit

Beginner's guide to SSL certificates

Spamming tactics are being used to distribute multiple versions of a new Trojan. The malware is similar to the Bagle email worm except for the absence of email spreading functionality.

Most of the samples seen so far include a ZIP attachment which, when opened, includes a program file named "doc_01.exe" or "prs_03.exe", or some other innocuous sounding name. If the malware inside this ZIP file is opened, the Trojan may attempt to download more malicious code from a pre-programmed list of websites. Typically, Bagle Trojan variants also attempt to disable anti-virus and personal firewall software. Anti-virus firm Sophos reports the detection of four distinct variants of the Bagle Trojan.

The spamming tactics are a repeat of a ploy used in spreading a batch of Bagle variants in September 2004. This time around the bulk mailing is more aggressive.

More than 75,000 emails containing variants of the Bagle were blocked by email security company BlackSpider Technologies on Tuesday (1 March). Anti-virus firms are working on releasing updated signature files to detect the malware. Meanwhile, analysis work continues. Sophos advises firms to block executable files in email at corporate gateways. ®

Related stories

New Bagle worm drops in and downloads
Zombie PCs spew out 80% of spam
VXers creating 150 zombie programs a week
Botnets, phishing and spyware

Choosing a cloud hosting partner with confidence

More from The Register

next story
SMASH the Bash bug! Apple and Red Hat scramble for patch batches
'Applying multiple security updates is extremely difficult'
Apple's new iPhone 6 vulnerable to last year's TouchID fingerprint hack
But unsophisticated thieves need not attempt this trick
Oracle SHELLSHOCKER - data titan lists unpatchables
Database kingpin lists 32 products that can't be patched (yet) as GNU fixes second vuln
Who.is does the Harlem Shake
Blame it on LOLing XSS terroristas
Researchers tell black hats: 'YOU'RE SOOO PREDICTABLE'
Want to register that domain? We're way ahead of you.
Stunned by Shellshock Bash bug? Patch all you can – or be punished
UK data watchdog rolls up its sleeves, polishes truncheon
Ello? ello? ello?: Facebook challenger in DDoS KNOCKOUT
Gets back up again after half an hour though
SHELLSHOCKED: Fortune 1000 outfits Bash out batches of patches
CloudPassage points to 'pervasive' threat of Bash bug
prev story

Whitepapers

Providing a secure and efficient Helpdesk
A single remote control platform for user support is be key to providing an efficient helpdesk. Retain full control over the way in which screen and keystroke data is transmitted.
Intelligent flash storage arrays
Tegile Intelligent Storage Arrays with IntelliFlash helps IT boost storage utilization and effciency while delivering unmatched storage savings and performance.
Beginner's guide to SSL certificates
De-mystify the technology involved and give you the information you need to make the best decision when considering your online security options.
Security for virtualized datacentres
Legacy security solutions are inefficient due to the architectural differences between physical and virtual environments.
Secure remote control for conventional and virtual desktops
Balancing user privacy and privileged access, in accordance with compliance frameworks and legislation. Evaluating any potential remote control choice.