Feeds

Price isn't right for new Bagle variant

Worm du jour

  • alert
  • submit to reddit

Secure remote control for conventional and virtual desktops

Yet another variant of the mass-mailing Bagle worm began spreading widely yesterday.

Bagle-AQ (AKA Bagle-AL or Bagle-AC) normally spreads by emails containing an infectious attachment. The attachment name is variable, but always contains the word "price". The attachment is always ZIP, although it could sometimes be encrypted. In these cases the email contains the password in an image.

This archive contains a HTML file and the worm's payload, an EXE file. When the HTML file is accessed, the worm uses a well-known (Object Data) vulnerability in Internet Explorer to load and execute its payload. Once this payload is executed, infected PCs begin spamming out copies of the worm to email addresses harvested from the hard disks of compromised machines.

Bagle-AQ can also spread over P2P networks. Files infected with the worm but posing as useful utilities or games are copies into P2P share directories of compromised machines.

Like previous variants of Bagle, the worm contains a backdoor which allows the author of the virus to control infected machines. Bagle-AQ also tries to terminate various AV programs on infected machines.

Bagle-AQ spread rapidly initially, possibly because of the use of spamming software by its unknown authors. As usual, Bagle-AQ is a Windows-only menace.

Standard defensive precautions apply: avoid opening unsolicited attachments, even when they appear to come from people you trust; update AV tools to detect the worm; update IE with Microsoft's latest patches. ®

Related stories

Bagle copycat builds Zombie attack network
Bagle source code unleashed
Zombie PCs spew out 80% of spam
MyDoom and NetSky cause chaos
War of the worms turns into war of words

Beginner's guide to SSL certificates

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
Privacy bods offer GOV SPY VICTIMS a FREE SPYWARE SNIFFER
Looks for gov malware that evades most antivirus
Patch NOW! Microsoft slings emergency bug fix at Windows admins
Vulnerability promotes lusers to domain overlords ... oops
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'
Astro-boffins start opening universe simulation data
Got a supercomputer? Want to simulate a universe? Here you go
prev story

Whitepapers

Why cloud backup?
Combining the latest advancements in disk-based backup with secure, integrated, cloud technologies offer organizations fast and assured recovery of their critical enterprise data.
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.
Go beyond APM with real-time IT operations analytics
How IT operations teams can harness the wealth of wire data already flowing through their environment for real-time operational intelligence.
Why CIOs should rethink endpoint data protection in the age of mobility
Assessing trends in data protection, specifically with respect to mobile devices, BYOD, and remote employees.
High Performance for All
While HPC is not new, it has traditionally been seen as a specialist area – is it now geared up to meet more mainstream requirements?