Crypto used to refer to cryptography, the study of protecting the confidentiality and integrity of information. It is one of the purest branches of computer security. Theoretical cryptography is almost fully governed by the laws of mathematics and physics. The only breakthrough possible is ...

Timestomping is a favourite topic of red teamers and forensic analysts. They often speak about the tools and powershell commands that can be used to do timestomping. How do these tools work? In the course of developing nTimetools, I read up on the various APIs and the extent of ...

OpenVPN GUI will automatically run the following batch files if it exists. No changes to config file is needed, just drop the batch file in place. Possible privilege escalation if user runs OpenVPN GUI with administrator privileges and uses a VPN config in his home directory. ...

I recently decided to migrate my server cluster's logging mechanism from rsyslog to Splunk. My previous setup was to use rsyslog to centralise all logging onto /var/remotelog/ on a central server. I then configured the Splunk indexer to index both /var/log/ as well as /var/remotelog/, this ...

I was back at SANS October Singapore this year. Not much changed compared to the past year, the venue was the same, food was the same, even some of the course participants were familiar. This year, I signed up for the FOR508 course, as well as both NetWars Core and Defense. It was really tiring ...

Most of the solutions for FLARE-On 5 web2point0 challenge involve the use of a framework to decompile WebAssembly. Chrome offers the ability to debug WebAssembly code which gives us the opportunity to solve this challenge without any other tools. When solving simpler crackme binaries, we ...

I had to place an obituary in the Straits Times recently. SPH offers an online service where you can use their tool to design the obituary and make payment, all without going down to their office. I decided to use the service. I entered my personal details and contact information into the first ...

Today newspaper published an article on how SEAB handled the investigation into the O-level cheating case. I was mildly horrified upon reading it and felt that the investigation could have been conducted in a more professional manner. The perpetrators discovered that they were caught even ...