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The September 2011 Symantec Intelligence Report reveals that a deluge of malicious email-borne malware has left a clear mark on the threat landscape for September. Approximately 72% of all email-borne ...

The September 2011 Symantec Intelligence Report reveals that a deluge of malicious email-borne malware has left a clear mark on the threat landscape for September. Approximately 72% of all email-borne malware in September could be characterized as aggressive strains of generic polymorphic malware, first identified in the July Symantec Intelligence Report. At the end of July, this rate was 23.7%, in August it fell slightly to 18.5% before soaring to 72% in September.