I published the following diary on isc.sans.org: “Malicious Network Traffic From /bin/bash“: One of our readers from Germany sent me a malicious shell script captured by our honeypot running on his Raspberry. It’s a simple UNIX Bash script that performs a bunch of malicious tasks: Kills existing crypto miner processes
I published the following diary on isc.sans.org: “Malicious Bash Script with Multiple Features“: It’s not common to find a complex malicious bash script. Usually, bash scripts are used to download a malicious executable and start it. This one has been spotted by @michalmalik who twitted about it. I had a
I found UNIX a wonderful OS, whatever the flavors! I use it for 17 years and almost every week, I learn new stuffs. One of the particularities of UNIX is the way it communicate with devices. Except some specific devices, most of them are managed and visible as files or
Infosec guys are lazy people. At least in my case! There is nothing much boring that typing long shell commands or to perform recurrent tasks. After all, computers are made to make our life easier. Let them work for us! UNIX is a wonderful environment. There are plenty ways to
A few months ago, I posted an article about how to add extra logging facilities to the Bash shell. For specific users, it can be useful to have a complete history of their activity on your server (for audit purposes). The first release candidate of Bash 4.1 is available for
