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p2p File Sharing

Open network environments are naturally prone to abuse by users sharing files through Peer to Peer applications. This can be annoying when lots of bandwidth is used, and it can become a legal hassle if the files shared are copyrighted content such as music, movies, television shows, and software. Read more


Spotting Spammers

Compromised systems are often used by attackers to distribute SPAM email messages. They serve as a convenient platform for reaching millions of legitimate email accounts with worthless advertising and phishing attempts. There are many ways systems can be enslaved for this purpose, including viruses on USB drives, remote exploits, and user-installed software from malicious sites. Read more


The Exim4 Bug Fallout

Exim4 is a popular open source email server often used by organizations using the Linux platform for their critical services. Version 4.69 of this package is vulnerable to a remote buffer overflow exploit that will give the attacker control of the user running the Exim4 software. This vulnerability was being exploited far before the software bug was discussed and fixed. Read more


SSH Password Brute Forcing

The secure shell protocol (SSH) is probably the most common way for Unix administrators to perform remote administration of their servers. Since all SSH implementations support password authentication, brute-force password attempts have become a common attack vector for hackers attempting to harvest hosts for botnets and DDOS attacks. Read more


Failing Full Capture

Retaining a full packet capture of your network traffic can be a powerful tool for performing forensic investigations on your network. However, with modern high-speed networks, the possible traffic retention periods are often too short. It might not be possible to keep more than a couple of hours worth of captured network traffic. Read more

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