• Total Members: 12780
  • Latest: eduard
  • Total Posts: 28039
  • Total Topics: 8052
  • Online Today: 817
  • Online Ever: 51419
  • (01. January 2010., 09:27:49)

Author Topic: Downadup Worm Eats into 1 of Every 16 PCs  (Read 1326 times)

0 Members and 1 Guest are viewing this topic.


  • SCF Administrator
  • *****
  • Posts: 7152
  • KARMA: 291
  • Gender: Male
  • Whatever doesn't kill us makes us stronger.
    • - Samker's Computer Forum
Downadup Worm Eats into 1 of Every 16 PCs
« on: 22. January 2009., 12:59:34 »

The computer worm responsible for the biggest attack in years has infected at least 1 out of every 16 PCs worldwide, a security company said Wednesday, and may have managed to compromise as many as nearly 1 in 3.

According to Panda Security, almost 6% of the Windows systems scanned with its antivirus technology were found to be infected with "Downadup," a worm that began aggressive attacks just over a week ago. Panda was one of the first security firms to ring the alarm over Downadup, when it raised its security threat level Jan. 12 as reports of attacks mounted.

Using data from antivirus scans performed by its consumer-grade security software, and by a free online scanning tool it makes available on its Web site, Panda found 111,379 PCs infected with the worm out of a pool of 2 million machines.

"I'm pretty confident in this number," said Ryan Sherstobitoff , chief corporate evangelist at Panda Security, as he cautioned it was just a snapshot. "Conficker is still infecting high volumes of machines and is a fast-propagating worm."

Conficker is an alternate name for the Downadup worm.

In fact, Panda's estimate is probably very conservative, Sherstobitoff said, since the bulk of the infected computers were scanned when their owners took the time to steer their browsers to the company's online scanner .

"The 6% was of people coming to our site, and opting in for the scans. That's somewhat scary," said Sherstobitoff. "If we were actually to look at the [general] population, all the people who don't have antivirus or if they do, who haven't updated definitions, the infection rate might be in the range of 20% to 30%."

While there has been some disagreement among security researchers about Downadup's infection volume -- last week, for instance, some disputed F-Secure Corp. 's estimate of 8.9 million infected PCs -- there has been little argument about the relative size of the worm attack. Nearly every researcher has pegged it as the biggest in years.

Today, Panda joined the chorus. "This is the biggest in at least six years," said Sherstobitoff.

Luis Corrons, the technical director of Panda's research lab, put it in the same terms. "[This is] a phenomenon we haven't seen since the times of the great epidemics of Kournikova or Blaster ," said Corrons in a statement, referring to major worm attacks of 2001 and 2003, respectively.

And things will get worse before they get better, both Corrons and Sherstobitoff wagered. "This is an epidemic and the worst may still be to come, as the worm could begin to download more malware onto computers or to spread through other channels," Corrons said.

"We're still getting lots of reports of infections," echoed Sherstobitoff. "It could be a week or a week and a half before it slows down."

On a related note, the U.S. Computer Emergency Readiness Team (US-CERT) today said that Microsoft 's advice for disabling Windows' "Autorun" feature is flawed, and leaves users open to attack from the worm.

(PC World)

Samker's Computer Forum -

Downadup Worm Eats into 1 of Every 16 PCs
« on: 22. January 2009., 12:59:34 »


With Quick-Reply you can write a post when viewing a topic without loading a new page. You can still use bulletin board code and smileys as you would in a normal post.

Name: Email:
Type the letters shown in the picture
Listen to the letters / Request another image
Type the letters shown in the picture:
Second Anti-Bot trap, type or simply copy-paste below (only the red letters)

Enter your email address to receive daily email with ' - Samker's Computer Forum' newest content:

Terms of Use | Privacy Policy | Advertising