Microsoft technology targets Internet anonymity

Microsoft researchers have unveiled an anti-hacking concept that can help track hackers or malicious content to origin servers.

Microsoft researchers have unveiled an anti-hacking concept that can help track hackers or malicious content to origin servers.

The Host Tracker program's goal is to "de-anonymize the Internet" through the ability to host servers with 99 percent accuracy.

Host Tracker is designed to unmask would-be hackers who take advantage of anonymizing techniques by cross-referencing Internet protocol traffic data to identify the true origin. Microsoft's representatives said the Host Tracker system relies on application-level events -- in this case, Internet Explorer browser sessions -- to automatically infer host-IP bindings.

Researchers Yinglian Xie, Fang Yu and Martin Abadi ran some initial tests by analyzing a month's worth of data from an e-mail server, roughly 330 GB, to ascertain from the samples who may have been responsible for sending out certain types of spam. They studied some 550 million user IDs and 220 million IP addresses, and matched time stamps for message transmission or e-mail log-ons.

"The fact that we are able to trace malicious traffic to the proxy itself is an improvement because we are able to pinpoint the exact origin," Xie said (a PDF of the study can be found here).

From a practical perspective, the researchers said they hope that the program will result in better defenses against server-bound online attacks, spam campaigns, adware and other malware that is dependent on HTML code to execute properly. Further, Microsoft thinks this could be a boon for third-party security firms and security administrators at the enterprise level by giving them the ability to block certain hosts from sending messages as well as the ability to use this data as a basis for IT auditing and forensic analysis of messaging and network systems.

"In the next-generation Internet, anonymity and traceability should be offered and reconciled by design rather than by accident," the researchers added.

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