There’s been much more discussion recently as to whether infected computers should be allowed unrestricted access to the Internet. Despite the fact we’ve been around the horn on this question for years, there’s still little consensus on this thorny issue.
Since infected computers, linked together in botnets, form the backbone of spam distribution networks – according to the March 2011 MessageLabs Intelligence Report, botnets sent an average of 88.2% of global spam during 2010 – this question needs to be taken off the back burner and dealt with much more aggressively.
Frankly, I’m tired of making excuses for people who are too damn lazy, too damn stupid, too damn inconsiderate, ………. to take the time to learn the basics of computer security. And, as a consequence cause me, and you incidentally, to have to deal with volumes of spam that are beyond the pale.
Graphic courtesy of Symantec (Click to expand to original)
According to the March 2011, MessageLabs Intelligence Report (released yesterday), the recently taken down Rustock botnet “had been sending as many as 13.82 billion spam emails daily, accounting for an average of 28.5% of global spam sent from all botnets in March.”
A little math suggests, that during March enough Spam was emailed that conceivably, every person on the Planet received 7 spam emails EVERY DAY! Since every person on the Planet is not connected, the abuse takes on another magnitude. I can’t think of another finite resource – and the Internet is a finite resource – that could be continuously abused in this way, without some kind of strong kickback.
Are we making any headway against botnets and the cyber criminals behind them? Not according to the MessageLabs Intelligence Report we’re not. Sure, Rustock has bitten the dust (at least for the moment), but the Bagle botnet has stepped into the breech, bumped up its output, and is now sending 8.31 billion spam emails each day, mostly tied to pharmaceutical products.
Spam: In March 2011, the global ratio of spam in email traffic from new and previously unknown bad sources decreased by 2 percent (1 in 1.26 emails).
Viruses: The global ratio of email-borne viruses in email traffic from new and previously unknown bad sources was one in 208.9 emails (0.479 percent) in March, an increase of .134 percentage points since February. In March, 63.4 percent of email-borne malware contained links to malicious websites, a decrease of .1 percentage points since February.
Endpoint Threats: The endpoint is often the last line of defense and analysis. The threats found here can shed light on the wider nature of threats confronting businesses, especially from blended attacks. Attacks reaching the endpoint are likely to have already circumvented other layers of protection that may already be deployed, such as gateway filtering.
Phishing: In March, phishing activity was 1 in 252.5 emails (0.396 percent), a decrease of 0.065 percentage points since February.
Web security: Analysis of web security activity shows that an average of 2,973 websites each day were harbouring malware and other potentially unwanted programs including spyware and adware, a decrease of 27.5% since February. 37 percent of malicious domains blocked were new in March, a decrease of 1.9 percentage points since February. Additionally, 24.5 percent of all web-based malware blocked was new in March, a decrease of 4.2 percentage points since last month.
Reading this type of report (or at least the highlights), is certainly educational, and can be a major step in expanding that sense of threat awareness that active Internet users’ require.
The full MLI Report is available here in PDF.
Symantec’s MessageLabs Intelligence is a respected source of data and analysis for messaging security issues, trends and statistics. MessageLabs Intelligence provides a range of information on global security threats based on live data feeds from control towers around the world scanning billions of messages each week.
Symantec is a global leader in providing security, storage and systems management solutions to help consumers and organizations secure and manage their information-driven world. Our software and services protect against more risks at more points, more completely and efficiently, enabling confidence wherever information is used or stored. More information is available at www.symantec.com.
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