Feeds

Sober worm tops May viral charts

Free World Cup offer is virus world's Crazy Frog

  • alert
  • submit to reddit

Protecting users from Firesheep and other Sidejacking attacks with SSL

The new Sober-N worm, which poses as offers for free tickets for the 2006 World Cup, toppled Zafi-D as the most popular, sorry, prevalent virus on the internet last month.

Zafi-D, showing the sort of chart topping success that record industry execs would give their right nostril for, spent five straight months in the top spot before it was finally knocked off its perch in a chart compiled by anti-virus firm Sophos.

The bilingual Sober-N worm was detected at the beginning of the month and rapidly spread across 40 countries. Windows PCs infected with the worm were later used as a launch pad for a spamming campaign. The spam subject lines included 'Dresden Bombing Is To Be Regretted Enormously', 'Armenian Genocide Plagues Ankara 90 Years On', 'Dresden 1945' and 'Turkish Tabloid Enrages Germany with Nazi Comparisons'.

A mass mailing worm accompanied by a backdoor Trojan, MyTob-AZ, was the other new entry of Sophos's May charts, coming in at number six. Sophos identified and protected against 1,515 new viruses in May. The total number of viruses Sophos now protects against is 104,784. Its research shows that 2.62 per cent of emails circulating in May 2005 were viral, slightly up on April 2005.

By contrast security appliance firm Fortinet reports a 20 per cent decrease in virus prevalence last month compared to April. Of the new malicious codes detected by Fortinet in May 2005, approximately 33 per cent were Trojans (including backdoors), 33 per cent were network worms (worms which propagate through the network via exploits, networks shares and Instant Messengers), and 2 per cent were mass-mailing worms.

Incidents of new Trojans dropped 3 per cent over the course of last month, following a 20 per cent decrease from March-April). This brings the overall percentage of Trojans detected in May to pre-February levels, according to Fortinet. Most virus writing activity focused on the creating of bots, malicious code capable of commandeering infected PCs. ®

Top 10 computer viruses, according to Sophos

  1. Sober-N
  2. Zafi-D
  3. NetSky-P
  4. NetSky-D
  5. Zafi-B
  6. MyTob-AZ
  7. MyTob-Z
  8. NetSky-Z
  9. MyTob-E
  10. NetSky-N

Related stories

Sober worm shakes Windows security
Sober infected PCs spew right-wing 'hate spam'
The strange decline of computer worms
Undead worms infest Windows PCs (again)

The next step in data security

More from The Register

next story
Israeli spies rebel over mass-snooping on innocent Palestinians
'Disciplinary treatment will be sharp and clear' vow spy-chiefs
Infosec geniuses hack a Canon PRINTER and install DOOM
Internet of Stuff securo-cockups strike yet again
'Speargun' program is fantasy, says cable operator
We just might notice if you cut our cables
Apple Pay is a tidy payday for Apple with 0.15% cut, sources say
Cupertino slurps 15 cents from every $100 purchase
YouTube, Amazon and Yahoo! caught in malvertising mess
Cisco says 'Kyle and Stan' attack is spreading through compromised ad networks
Hackers pop Brazil newspaper to root home routers
Step One: try default passwords. Step Two: Repeat Step One until success
Greater dev access to iOS 8 will put us AT RISK from HACKERS
Knocking holes in Apple's walled garden could backfire, says securo-chap
Microsoft to patch ASP.NET mess even if you don't
We know what's good for you, because we made the mess says Redmond
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.
Saudi Petroleum chooses Tegile storage solution
A storage solution that addresses company growth and performance for business-critical applications of caseware archive and search along with other key operational systems.
Security and trust: The backbone of doing business over the internet
Explores the current state of website security and the contributions Symantec is making to help organizations protect critical data and build trust with customers.
Reg Reader Research: SaaS based Email and Office Productivity Tools
Read this Reg reader report which provides advice and guidance for SMBs towards the use of SaaS based email and Office productivity tools.
Security for virtualized datacentres
Legacy security solutions are inefficient due to the architectural differences between physical and virtual environments.