Feeds

Worm plays Tetris with victims

Old game with unpleasant twist

  • alert
  • submit to reddit

Seven Steps to Software Security

A worm which poses as a version of classic computer game Tetris is spreading across the net. The Cellery worm spreads across insecurely configured network shares and distracts infected users with a Tetris-like arcade game and a MIDI music tune while it scours network drives and attached computers for fresh victims. Few copies of the worm have been seen, so Cellery is a curiosity rather than as a serious risk, right now.

"This worm puts up the Tetris game as a smokescreen as it tries to hop from computer to computer across your network," said Graham Cluley, senior technology consultant for Sophos. "If your company has a culture of allowing games to be played in the office, your staff may believe this simply a new game that has been installed - rather than something that should cause concern."

Packaging malware in games represents is an unusual but not unprecedented tactic for virus authors. The Bibrog worm posed as a shooting game, while the Coconut worm, written by the female Belgian virus writer Gigabyte, gave users the chance to throw coconuts at pictures of members of the computer security community, including Sophos's Cluley.

Happy ‘Nude’ Year

Another worm doing the rounds this week demonstrates that virus writers are inventive when it comes to social engineering tricks. The Wurmark-D worm offers prospective victims an unconventional Happy New Year message in the shape of a photograph of naked bodies. Infected emails pose as seasonal greetings with a "screensaver" attachment that launches the image as well as infecting any Windows PC it is launched from. Upon infection the worm will search infected hard disks for email address to send itself to as well as disabling any antivirus protection. Wurmark-D has found few victims and is rated as a low risk.

Wurmark-D and Cellery infect Windows PC onlys, as is the norm. Standard defensive precautions apply: avoid opening unsolicited attachments, update AV tools to detect the worms, apply the latest Microsoft security patches and use a personal firewall. If you think your PCs might be infected with a virus then our guide to cleaning up PCs may come in handy. ®

Related stories

Trojans exploit Windows DRM loophole
VXers creating 150 zombie programs a week
Polyglot virus is Xmas party pooper

Mobile application security vulnerability report

More from The Register

next story
Yorkshire cops fail to grasp principle behind BT Fon Wi-Fi network
'Prevent people that are passing by to hook up to your network', pleads plod
HIDDEN packet sniffer spy tech in MILLIONS of iPhones, iPads – expert
Don't panic though – Apple's backdoor is not wide open to all, guru tells us
NEW, SINISTER web tracking tech fingerprints your computer by making it draw
Have you been on YouPorn lately, perhaps? White House website?
LibreSSL RNG bug fix: What's all the forking fuss about, ask devs
Blow to bit-spitter 'tis but a flesh wound, claim team
BMW's ConnectedDrive falls over, bosses blame upgrade snafu
Traffic flows up 20% as motorway middle lanes miraculously unclog
Attackers raid SWISS BANKS with DNS and malware bombs
'Retefe' trojan uses clever spin on old attacks to grant total control of bank accounts
Manic malware Mayhem spreads through Linux, FreeBSD web servers
And how Google could cripple infection rate in a second
Mozilla fixes CRITICAL security holes in Firefox, urges v31 upgrade
Misc memory hazards 'could be exploited' - and guess what, one's a Javascript vuln
prev story

Whitepapers

Designing a Defense for Mobile Applications
Learn about the various considerations for defending mobile applications - from the application architecture itself to the myriad testing technologies.
How modern custom applications can spur business growth
Learn how to create, deploy and manage custom applications without consuming or expanding the need for scarce, expensive IT resources.
Reducing security risks from open source software
Follow a few strategies and your organization can gain the full benefits of open source and the cloud without compromising the security of your applications.
Boost IT visibility and business value
How building a great service catalog relieves pressure points and demonstrates the value of IT service management.
Consolidation: the foundation for IT and business transformation
In this whitepaper learn how effective consolidation of IT and business resources can enable multiple, meaningful business benefits.