enterprisesasfen.blogg.se - Abyss web server war files

#ABYSS WEB SERVER WAR FILES CRACKED#
#ABYSS WEB SERVER WAR FILES CODE#
#ABYSS WEB SERVER WAR FILES PASSWORD#

Today I tried out one of the easier challenges on. However, I’m back now and ready to go, plus I know Rose and Jordan have been sorely lacking good reading material. Prior to taking (and passing!) my OSCP exam back in February, I was doing as many CTF machines as I could for practice and burned myself out a bit. Since it has been a while and I have some free time at home, I figured I should get back to doing some write-ups.

#ABYSS WEB SERVER WAR FILES CRACKED#

As the application would likely be running as the current user, this should provide a Net-NTLMv2 hash that can either be cracked or passed to another machine.

(Credentials) Have the application try to connect to the attacker’s SMB server that is running Responder.

This would avoid needing to write the log file to disk.

#ABYSS WEB SERVER WAR FILES PASSWORD#

(Exfiltration) Have the application perform an HTTP request with the submitted password to the attacker’s external server.

I haven’t tested either of these personally, but they should work in theory: I’m not going to detail anymore in this post, but I will list two potential ideas that could be done with this specific app and there are countless others for other applications depending on their functionality and purpose. C:\Program Files, but it’s not abnormal to compromise a machine and find more interesting things to do with it during post-exploitation. In many cases this would require administrative rights to access the original’s location on disk, i.e. NET binary with a modified one, there are a variety of other useful things that could be added. If we have access to overwrite an existing.

It will not be exactly the same as the original, but will usually be close enough that you won’t notice much of a difference.Īs an example of what this looks like, I created a simple C# Windows Forms application in Visual Studio that displays a login prompt and prints a message on submission for whether or not the password was correct.Ĭontents of the log file created by application Closing and other potential ideas

#ABYSS WEB SERVER WAR FILES CODE#

The useful part about this in our case is that a decompiler can reconstruct what it thinks the original code looked like much easier from IL code. This IL code is a higher level machine language than the usual assembly language used by the CPU, such as instructions like jmp, push eax, pop ebx, etc. Given how popular C#/.NET is in the world today, this seems like a good topic.Īs a quick overview, when a developer creates an application written in C#/.NET and compiles it, the compiler generates a file that contains what’s known as Intermediate Level code (IL code). I haven’t written anything in a while because I’ve been going through various trainings/courses, but I want to start getting back into the habit of it, so today I’m going to talk about the process of adding a backdoor to a.