Dark Reading is part of the Informa Tech Division of Informa PLC

This site is operated by a business or businesses owned by Informa PLC and all copyright resides with them.Informa PLC's registered office is 5 Howick Place, London SW1P 1WG. Registered in England and Wales. Number 8860726.

Vulnerabilities / Threats

10/13/2010
02:33 PM
Connect Directly
Google+
Twitter
RSS
E-Mail
50%
50%

Microsoft Removed 6.5 Million Bots From Windows Machines In Q2

Report shows fruits -- and frustrations -- of Microsoft, others' labors in targeting botnets

It has been a banner year for botnet takedowns, but that doesn't mean end users are getting any less bot-infected: Microsoft cleaned up two times as many bots in the first half of this year as it did the same period in 2009, according to data in the Microsoft Security Intelligence Report volume 9 (SIRv9) released today.

The biannual report, which is based on real-world data from millions of Windows machines worldwide that Microsoft scans and cleans with its products and services, also highlighted a nearly 8 percent decrease in overall vulnerability disclosures this year versus the second half of last year -- seemingly good news for secure software development initiatives, such as Microsoft's Secure Development Life Cycle.

New vulnerability disclosures for all software have been on a gradual decline for the past four years, according to Microsoft's data. There were around 2,500 new vulnerability disclosures in the first half of this year, versus 3,500 in the second half of 2006. "The caveat is that it's good that it's down, but those numbers are still really high, in the 2,500 to 3,000 range for a six-month period," says Jeff Jones, director of Trustworthy Computing at Microsoft.

Jones says a positive sign is that the number of users running Microsoft's Windows Update and Microsoft Update services have increased 75 percent during the past four years. "One of the fundamentals we promote is staying up-to-date," he says.

The U.S. hosts the most bot infections, with 2.2 million zombie machines, followed by Brazil with 550,000, and Spain with 382,000 bots. When it comes to the highest rate of bot infection, Korea was No. 1 with 14.6 bots cleaned per thousand Windows machines. Spain came in second with 12.4 bots per thousand machines, followed by Mexico with 11.4 bots cleaned per thousand computers.

"We are seeing botnets as the integration point for malware and the launchpad for cybercrime," Microsoft's Jones says. "We are seeing some good impact [from botnet takedowns], but equally there is still a high number of infections, so there's lots of work still to be done."

The surge in bots this year could also be due to Microsoft's more aggressive strategy to knock them down, says one security expert. Graham Titterington, principal analyst with Ovum, says he believes the numbers reflect Microsoft's focus on rooting and snuffing out botnets. "It's mainly due to Microsoft getting more aggressive in searching out botnets," Titterington says.

Microsoft flexed its botnet-battling muscles in February when it led an industry effort to kill the former Storm spamming botnet, which had been reinvented as Waledac. Microsoft, Shadowserver, the University of Washington, Symantec, and a group of researchers from Germany and Austria conducted a sneak attack highlighted by a federal court order that forced VeriSign to cut off 277 Internet ".com" domains that had been serving as the connections between the botnet's command and control servers and its around 60,000 to 80,000 bots.

A couple of weeks later, word got out that another botnet, Mariposa, was infiltrated and decapitated by law enforcement officials in Spain, as well as from the FBI, Panda Security, Defence Intelligence, and Georgia Tech. Mariposa was a massive global botnet with close to 13 million infected machines in more than 190 countries -- including those of half of all Fortune 1000 firms. The botnet harvested banking credentials, credit card information, account information from social networking sites and online email services, and other usernames and passwords.

The takedowns were unprecedented international efforts, but even the participants admitted they aren't necessarily long-term solutions. "Any progress we make helps with the overall problem ... when we chopped the head off Waledac, there was an immediate benefit and it was stopping spam off that," Microsoft's Jones says. "It's not perfect, but it's an effort worth doing."

Microsoft cleaned up nearly 30,000 Waledac bots in the second quarter of the year, a major drop from the 83,580 Waledac bots it cleaned in the first quarter.

While a botnet takedown results in an immediate reduction in spamming and other cybercrime, the lull typically lasts only until the bad guys regroup, relocate, or reinvent themselves with another botnet. The honeymoon is often over after a few months, Ovum's Titterington notes.

"The long-term solution is making the environment more secure and less prone to botnets: hardening the operating system, getting people to use better hygiene on the Net, installing patches, anti-malware, etc.," he says.

It's the next step -- cleaning up all of the bots -- that's the tricky part. "If we can figure out how to collectively get those machines cleaned up, it takes more tools away from the cybercriminals," Microsoft's Jones says.

Meanwhile, the most active botnet families in the first half of this year, in order, were Rimecud, a malware kit used in Mariposa, Alureon, Hamweq, Pushbot, IRCbot, Koobface, FlyAgent, Virut, Renocide, and Hupigon, according to the report.

Among the other key findings in the report was that stolen equipment is still the No. 1 cause of a security breach (30.6 percent of incidents), and infection rates for Windows 7 are the lowest of all Windows OSes, accounting for about 2.5 percent of infected machines.

The full Microsoft SIR version 9 is available for download here.

Have a comment on this story? Please click "Discuss" below. If you'd like to contact Dark Reading's editors directly, send us a message.

Kelly Jackson Higgins is the Executive Editor of Dark Reading. She is an award-winning veteran technology and business journalist with more than two decades of experience in reporting and editing for various publications, including Network Computing, Secure Enterprise ... View Full Bio

Comment  | 
Print  | 
More Insights
Comments
Newest First  |  Oldest First  |  Threaded View
44% of Security Threats Start in the Cloud
Kelly Sheridan, Staff Editor, Dark Reading,  2/19/2020
Zero-Factor Authentication: Owning Our Data
Nick Selby, Chief Security Officer at Paxos Trust Company,  2/19/2020
Register for Dark Reading Newsletters
White Papers
Video
Cartoon
Current Issue
6 Emerging Cyber Threats That Enterprises Face in 2020
This Tech Digest gives an in-depth look at six emerging cyber threats that enterprises could face in 2020. Download your copy today!
Flash Poll
How Enterprises Are Developing and Maintaining Secure Applications
How Enterprises Are Developing and Maintaining Secure Applications
The concept of application security is well known, but application security testing and remediation processes remain unbalanced. Most organizations are confident in their approach to AppSec, although others seem to have no approach at all. Read this report to find out more.
Twitter Feed
Dark Reading - Bug Report
Bug Report
Enterprise Vulnerabilities
From DHS/US-CERT's National Vulnerability Database
CVE-2020-8818
PUBLISHED: 2020-02-25
An issue was discovered in the CardGate Payments plugin through 2.0.30 for Magento 2. Lack of origin authentication in the IPN callback processing function in Controller/Payment/Callback.php allows an attacker to remotely replace critical plugin settings (merchant ID, secret key, etc.) and therefore...
CVE-2020-8819
PUBLISHED: 2020-02-25
An issue was discovered in the CardGate Payments plugin through 3.1.15 for WooCommerce. Lack of origin authentication in the IPN callback processing function in cardgate/cardgate.php allows an attacker to remotely replace critical plugin settings (merchant ID, secret key, etc.) and therefore bypass ...
CVE-2020-9385
PUBLISHED: 2020-02-25
A NULL Pointer Dereference exists in libzint in Zint 2.7.1 because multiple + characters are mishandled in add_on in upcean.c, when called from eanx in upcean.c during EAN barcode generation.
CVE-2020-9382
PUBLISHED: 2020-02-24
An issue was discovered in the Widgets extension through 1.4.0 for MediaWiki. Improper title sanitization allowed for the execution of any wiki page as a widget (as defined by this extension) via MediaWiki's } parser function.
CVE-2020-1938
PUBLISHED: 2020-02-24
When using the Apache JServ Protocol (AJP), care must be taken when trusting incoming connections to Apache Tomcat. Tomcat treats AJP connections as having higher trust than, for example, a similar HTTP connection. If such connections are available to an attacker, they can be exploited in ways that ...