Feeds

New version of Sasser undermines lone coder theory

Worm turns up after arrest of prime suspect

  • alert
  • submit to reddit

Build a business case: developing custom apps

The appearance of a new version of the infamous Sasser worm shortly after the arrest of its admitted author has fuelled speculation that its creator worked with other virus writers.

Sasser-E was first spotted three hours and 45 minutes after the arrest of Sven Jaschan, 18, from Rotenburg in northern Germany at 2pm on Friday afternoon (local time). Either earlier sightings of the fast-spreading worm were missed or Sasser-E was released by someone other than Jaschan, who was released from police custody after the new version of the worm arrived onto the scene.

Spanish AV firm Panda Software said the appearance of the variant showed there was an "organised group of delinquents" involved in distributing copies of the prolific worm.

Finnish AV firm F-Secure is not so sure: "We believe Mr. "SJ" (who has confessed to writing all the Sasser and NetSky variants) had distributed this version shortly before his arrest. He has been released on bail, but this was only after first reports of this new variant were in. The E variant does not appear to be a hack done by someone else." Circumstantial evidence led F-Secure and many in the AV community to suspect that the NetSky series was the work of multiple authors, a conclusion undermined by Jaschan's confession.

Sasser-E uses the same Windows vulnerability as previous versions to spread across vulnerable Windows 2000 and XP machines, causing them to become unstable and shutdown. Unlike previous version, Sasser-E gives a warning from the "SkyNet Team" about the vulnerability it exploits. Unlike the first four Sassers but like many NetSky variants, Sasser-E tries to remove the Bagle worm. Advice of protecting computers against Sasser can be found here. ®

Related Stories

Sasser worm creates havoc
We've seen worse than Sasser - MS
Sasser creates European pandemonium
German police arrest Sasser worm suspect

Next gen security for virtualised datacentres

Whitepapers

Implementing global e-invoicing with guaranteed legal certainty
Explaining the role local tax compliance plays in successful supply chain management and e-business and how leading global brands are addressing this.
Endpoint data privacy in the cloud is easier than you think
Innovations in encryption and storage resolve issues of data privacy and key requirements for companies to look for in a solution.
Scale data protection with your virtual environment
To scale at the rate of virtualization growth, data protection solutions need to adopt new capabilities and simplify current features.
Boost IT visibility and business value
How building a great service catalog relieves pressure points and demonstrates the value of IT service management.
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?