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Linux: You may have been Compromised when..

There are a number of warning signs that a system has been compromised. The cases below warrant further investigation. Of course, they aren’t all guarantees that your system has been compromised, however they can be strong indicators. 1. Your welcome banner shows the last log in from an unknown/foreign IP address: Last login: Tue Dec 2 16:08:41 2014 from 190.234.106.143 root@mt:~# 2. The load on a usually idle system is suspiciously high: root@mt:~# w 17:06:39 up 62 days, 22:37, 1 user, load average: 8.12, 8.14, 8.11 USER TTY FROM LOGIN@ IDLE JCPU PCPU WHAT root pts/0 pwn 17:03 7.00s 0.00s 0.00s w This could indicate that unknown processes are running. […]

By | December 9th, 2014|Linux, Security Consultant|0 Comments

Another PHP tip

While it’s all well and good to spend considerable time securing your PHP applications, there is something else that you can do, or rather not do. As a PHP programmer, I see people do one alarming thing: they download and install PHP applications from questionable sources. While there are a lot of honourable programmers who offer their scripts for free, there are plenty of hackers who enjoy deploying applications that cause harm to others. I discussed this earlier, but it bears repeating: trust your source. Know your source. […]

By | July 15th, 2010|Development, PHP, PHP, PHP Articles|0 Comments