Collaborate Disseminate
There was a project on GitHub that (was going to, if it hadn’t been abandoned) modify TCP fields in order to evade packet sniffing. It explains in specifics how this would work here. In particular, this is what’s specified:
packets with … Continue reading TCP connection scrambling to evade tracking
Is it possible that an attacker puts machine code on a TCP packet? In a way that before passing to the CPU and getting an error that such a function doesn’t exist on the application, it first needs to pass through the RAM, and when it’s in… Continue reading TCP packets containing machine code
Has it ever happened or is it possible that just by configuring custom code on the attacker’s listener like with Python or any other programming language, if a victim just connects to it using TCP, a reverse shell can happen without the vi… Continue reading Establishing a reverse shell without any software tools like Netcat (by the server)
Is it possible that for example there is a TCP packet, and using a proxy, you intercept it and using a tool you change the protocol entirely? Like for example from TCP to UDP or any other custom protocol?
Is it possible to write small application logic (for example 4 KB) on a TCP packet? like for example a simple logic that just sends back "Hello" to the IP address (user) who wrote a specific command like "Summon Hello" … Continue reading Writing small application logic directly on a TCP packet
Is it possible to send a TCP payload to an open port that executes a specific arbitrary command on the target device using Metasploit or any other program? For example with Windows 10 Server OS?
I searched for any answers to my question, b… Continue reading Arbitrary command execution on remote devices
I am developing a TCP-Proxy in C#/.NET using dotNetty (Port of Netty). The proxy is translating messages between two different systems. It will be hosted on a server in the company network, so it is not exposed to the internet.
I am wonder… Continue reading Securing an internal tcp proxy
I understand that the TCP itself provides a byte stream connection, but has no idea nor does it care what its payload is and how it is segmented to fit into individual packets that travel on the wire.
Observing the process in Wireshark, I … Continue reading How underlying protocol, like TLS, determines which TCP payloads should be combined to form a complete PDU? [closed]
We have started TLS and MTLS enforcement in all our private customer connections on our servers but we are facing design constraints in regards to High Availability TLS deployments.
For context, we are dealing with long-lived TCP sockets t… Continue reading TLS and high-availability [migrated]
I am investigating censorship in India, and know with a high degree of confidence that it is being blocked based on the SNI extension in the TLS ClientHello.
I am in control of both the Client (in India) and the Server (in Germany). I sus… Continue reading Possible to determine who on the Internet is resetting (RST) my TCP connection? [closed]