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Botnet takedowns: A dramatic defense
This article is part of the April 2013 / Volume 15 / No. 3 issue of Information Security magazine
Botnets remain a major challenge for infosec professionals. Companies such as Microsoft and Symantec have proclaimed success using legal and technical countermeasures to disrupt a few of the Internet’s more egregious botnets, but we’re not likely to shrug ourselves free of this scourge anytime soon. The growing sophistication of the malware used to propagate bots—seen, for example in 2012’s peer-to-peer ZeroAccess bot—combined with creative monetization schemes, make botnets resurface almost as quickly as they are knocked down. After a CrowdStrike dismantling in March 2012, the Kelihos 3 botnet, reestablished itself within 20 minutes of a significant takedown. There are steps security pros can take to help keep bots off their networks, but the infections and cyberattacks that botnets are sometimes used to launch, remain hard-to-detect malware threats for websites and increasingly, mobile devices. As much as anything, botnets are about the money. Consider the ZeroAccess bot. First identified in 2011, ZeroAccess ranked at the top...
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Features in this issue
Are you losing control of access management as SaaS and mobile devices take hold? To achieve better operational consistency and scale, consider a centralized IAM system.
The infections and cyberattacks that botnets are used to launch remain hard-to-detect malware threats that have moved beyond PCs to mobile devices.
Most networks have partial deployment of IPv6 often without IT realizing it. It’s time to take stock of the security implications before attackers do.
Columns in this issue
This month, Information Security Magazine examines security industry changes that can really make a difference: improving identity management and building security into software from the get go.
The CISO role in many enterprises is expanding beyond security risk mitigation to risk management, privacy and regulations, and compliance.
Security experts explain why a holistic approach to security is critical to training computer engineers and computer scientists for a career in information security.
Hacking back isn't the way to win the cyberwar. Gary McGraw says building software and systems with fewer vulnerabilities is stronger protection.