I had been listening to my co-workers talk about bitcoin and other cryptocurrencies for a while. Being that it’s the preferred payment method of the underground (i.e.darkweb, ransomware and so on) — and it’s my job as incident response manager to understand that sort of thing — I decided to give it a try. In […]
It’s really incredible to revisit this blog and see how much has happened since my last post in 2014. We have had IOT and SCADA pop out as a gigantic attack surface. Things that once seemed like movie plot threats are now common place. We have had the data of essentially every American ever leaked […]
My web server has been under attack since early this month. This is a dedicated server that I have leased for years. It only hosts a couple of sites for me, my family and a few select friends. Nothing of any real importance or sensitivity exists on it. Why this insignificant little server attracted the […]
While investigating an unrelated issue and digging through firewall logs I noticed a decent amount of traffic destined for tcp/2550 on one of my work servers.
The traffic mostly (82 of the 84 events today) originates from sequential IPs out of China. This immediately raises alarms with me.
I know, its sad. I too am a die hard mac user. Today alone I have received 4 copies of an email with the subject line “2 Populaar Myths About Female Orgasms – How to Become an Irresistible Lover” containing an attachment named “Preview.app Document”. I haven’t had a chance to analyse the .app yet, […]
I recently wrote a script that runs croned and port scans all of our servers daily. It saves the output and diffs it compared to the previous days and emails me as new ports open up. I think this will be a good way to detect new services and potential malware infection, but what about […]
I have recently been updating my Windows Forensics First Responder script and have noticed a number of servers reporting the following when using Sysinternals/Microsoft’s listdlls.exe. *** Loaded C:\WINNT\system32\KERNEL32.dll differs from file image: *** File timestamp: Wed Apr 18 12:25:36 2007 *** Loaded image timestamp: Wed Apr 18 12:25:37 2007 *** 0x77e40000 0x102000 5.02.3790.4062 C:\WINNT\system32\KERNEL32.dll Now […]
For some reason people keep buying Dells. I remember a couple of years ago all the small form factor optiplex’s I had suffered from a bad cap on the motherboard. Eventually all of them just die. My whole team at work have the same model workstation and the PSU went on each of them, one […]
A roadside traffic sign in Austin, Texas was hacked into so that it displayed a message warning passing motorists of zombies ahead. Police are investigating the incident, and if they are caught, the perpetrators could face misdemeanor road sign tampering charges. The vandals broke a lock on the sign and then managed to gain access […]
Bruce Schneier just posted an interesting article on his blog entitled “Interview with an Adware Developer”.
This article reinforces many of the things I have been telling people for a very long time, but for whatever reason never sinks in.