PushDo botnet launches web attacks 

PushDo botnet launches web attacks

Security, government sites targeted for DoS.
Bredolab trojan surges to new heights 

Bredolab trojan surges to new heights

MessageLabs warns malware is likely to go undetected.
Cutwail botnet authors behind wave of malicious IRS spam 

Cutwail botnet authors behind wave of malicious IRS spam

Malware-laden emails, at a rate of 90,000 an hour, are trying to dupe recipients into believing they were implicated in defrauding the IRS.
Botnet activity drops as spam remains high but steady 

Botnet activity drops as spam remains high but steady

Real Host shutdown impacted Cutwail botnet.
Spam server shutdown has little effect 

Spam server shutdown has little effect

The shutdown of the Pricewert internet service provider (ISP) looks unlikely to have the same crushing effect of spam as theMcColo closure last year.
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