Feeds

Doomjuice variant ups the ante in MS attack

Prelude to Friday the 13th assault?

  • alert
  • submit to reddit

Secure remote control for conventional and virtual desktops

A new version of the Doomjuice worm has been released into the wild in an apparent effort by hackers to modify an attack against Microsoft's Web site.

Doomjuice-B attacks www.microsoft.com, much like its predecessor Doomjuice-A, but now it sets random HTTP headers to make it more difficult to filter out the attack traffic. Its assault begins tomorrow.

TDoomJuice-B is smaller in size than DoomJuice-A because it does not drop the source code of MyDoom-A. AV vendor F-Secure reckons DoomJuice-B is slightly more virulent than its predecessor.

Netcraft estimates the scope of the "zombie" network potentially commanded by DoomJuice-B is likely to be smaller than the original pool of MyDoom-compromised machines which has kept www.sco.com offline with a DDoS attack since the start of February.

Both variants of Doomjuice use a backdoor left open by MyDoom-A to spread, instead of propagating through email or P2P file-sharing networks. Neither versions attacks SCO's Web site.

MyDoom infected anything between 400,000 and one million PCs, according to sundry estimates. Yesterday more than 65,000 IP addresses were actively scanning to and from port 3127, the backdoor left open by MyDoom_A, according to he SANS Institute's Internet Storm Center. This suggests that many users have cleaned up their act.

Netcraft has published a chart showing the performance of all the sites involved in the MyDoom/DoomJuice DDoS attacks here. ®

Related Stories

Latest Email worm (MyDoom) has SCO-facing payload
SCO posts $250,000 worm bounty
MyDoom assault forces SCO.com off the net
MyDoom variant attacks Microsoft.com
Worms pour through MyDoom back door

Remote control for virtualized desktops

More from The Register

next story
Webcam hacker pervs in MASS HOME INVASION
You thought you were all alone? Nope – change your password, says ICO
You really need to do some tech support for Aunty Agnes
Free anti-virus software, expires, stops updating and p0wns the world
Meet OneRNG: a fully-open entropy generator for a paranoid age
Kiwis to seek random investors for crowd-funded randomiser
USB coding anarchy: Consider all sticks licked
Thumb drive design ruled by almighty buck
Attack reveals 81 percent of Tor users but admins call for calm
Cisco Netflow a handy tool for cheapskate attackers
Patch NOW! Microsoft slings emergency bug fix at Windows admins
Vulnerability promotes lusers to domain overlords ... oops
prev story

Whitepapers

Choosing cloud Backup services
Demystify how you can address your data protection needs in your small- to medium-sized business and select the best online backup service to meet your needs.
A strategic approach to identity relationship management
ForgeRock commissioned Forrester to evaluate companies’ IAM practices and requirements when it comes to customer-facing scenarios versus employee-facing ones.
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?
Website security in corporate America
Find out how you rank among other IT managers testing your website's vulnerabilities.
New hybrid storage solutions
Tackling data challenges through emerging hybrid storage solutions that enable optimum database performance whilst managing costs and increasingly large data stores.