Collaborate Disseminate
My mail server (IP, not domains) was recently flagged as a spam source by Spamhaus and I’m looking for help at tracking down the source.
First, I verified the forward and reverse DNS records, SPF records, and the SMTP service HELO. Next I… Continue reading Locating Spambot
We have a Linux server running CentOS7. A few days ago we found out that it has started continuously attempting to connect to a Windows server share via port 445 using a certain user’s AD credentials. Every 2-3 seconds there is a SYN_SENT … Continue reading Linux automated SMB connection attempts: has my server been compromised [migrated]
My estranged husband of 2 months has been sitting outside my window hacking my phone and web with a program i believe called wireshark. Not 100% on the hacking device or program he is using however there was a strange IP?/wifi address tha… Continue reading Has anyone ever had to fix their tech after being hacked? I believe i have been hacked by my estranged husaband…Wireshark? [closed]
Here’s a hot topic:
https://www.redhat.com/en/blog/urgent-security-alert-fedora-41-and-rawhide-users
https://lwn.net/Articles/967180/
https://lwn.net/ml/oss-security/20240329155126.kjjfduxw2yrlxgzm@awork3.anarazel.de/
I’m not an expert i… Continue reading XZ compromise and consequences for people having used it
If we buy for instance a laptop with an OS pre-installed e.g. Ubuntu and but the original seller was not reputable and there are doubts with the preinstall.
My question is: if we use the laptop to download Ubuntu and create a USB bootable … Continue reading Creating bootable USB from a compromised OS. Is it safe?
If we buy for instance a laptop with an OS pre-installed e.g. Ubuntu and but the original seller was not reputable and there are doubts with the preinstall.
My question is: if we use the laptop to download Ubuntu and create a USB bootable … Continue reading Creating bootable USB from a compromised OS. Is it safe?
I have a ~brand-new (10 days since unpackaging) machine that had a funny pop-up (lower-right corner of below screenshot) appear just now. The only modifications I have made have been
Install the Brave browser
Install WSL, the Ubuntu app, … Continue reading New Machine Compromised? Should I Care? [migrated]
I have captured a memory dump of recent Ubuntu 22.04 kernel 6.2.0-39-generic.
captured image with LiMe and analyzed with volatility3.
did a yarascan against all known rules and found a suspicious amount of matches for spyeye.
Here is the o… Continue reading Examining linux memory dump with signs of compromise in yarascan
I have an ASUS computer that I use strictly for booting Tails OS from a USB. A few weeks ago I went into the BIOS and noticed that secure boot was disabled.
This computer has secure boot enabled by default. The chances of me having done th… Continue reading Secure boot disabled for Potential BIOS compromise on Tails OS machine
Can an attacker start a computer or tablet (that is off) that they know nothing about by using a modified smartphone to do it?
Research: I didn’t find much except this article from 12 years ago which seems to say yes.
https://www.instructa… Continue reading Starting my tablet with modified smartphone [closed]