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By Jennifer Lawinski on 2012-01-26
When it comes to preventing increasingly sophisticated and malicious attacks to your corporate network and its data, simply slapping on a few security appliances and scanning for spam isn't enough. Hackers act fast and are changing tactics. Even more can be gained by taking the time to analyze the data that your tools can give you about the attacks your enterprise is thwarting – or the malware that makes its way through. Analysis can give CIOs and IT managers value information about what's working and what's not when it comes to security. In the Cisco 4Q11 Global Threat Report, the company has rounded up information gathered by its security products to create a picture of the state of cyber-security between Oct. 1 and Dec. 31, 2011. The report finds that while spam volume continues to decline, malware attacks are becoming more frequent; in fact, "33% of Web malware encountered was zero-day malware not detectable by traditional signature-based methodologies at the time of encounter," Cisco said. "Most importantly, regular review and understanding of the data can help uncover the elusive “black swan”—the types of surreptitious and malicious events that otherwise could fly below the radar." Here are the report's key findings.
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Enterprise users experienced an average of 339 Web malware encounters per month in 4Q11.
An overall average of 362 Web malware encounters per month occurred throughout 2011.
The highest rate of encounters occurred during September and October 2011 at 698 and 697 on average per enterprise, respectively.
During 4Q11, 33 percent of Web malware encountered was zero-day malware not detectable by traditional signature-based methodologies at the time of encounter.
An average of 20,141 unique Web malware hosts were encountered per month in 2011, compared to a monthly average of 14,217 in 2010.
The rate of SQL injection signature events remained steady throughout 4Q11, dipping slightly toward the quarter's end.
The highest rate of zero-day malware blocks occurred in November 2011, during which 47 percent of Web malware was blocked by Cisco's Outbreak Intelligence.
Global spam volumes continued to decline throughout 2011.
Denial-of-service events increased slightly over the course of 4Q11.
Industries with highest malware encounter risk: Pharmaceuticals and Chemicals Agriculture and Mining Energy and Oil
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