Exploitation

In the ongoing cat-and-mouse game between malware creators and security systems, malware writers employ a variety of evasion techniques to bypass detection. Although defenders increasingly depend on behavioral analysis and AI to combat these tactics, the evasion methods remain challenging to detect.

Broadcast signal hijacking—also known as broadcast signal intrusion—is the unauthorized takeover of television (or radio) signals, allowing attackers to inject their own content into a broadcast. Over the years, several methods have been used to achieve this, ranging from physical tampering to sophisticated cyberattacks.

When hackers compromise a server, the ability to transfer files to and from that server is critical to achieving their goals. Here are the primary reasons why file transfer is so important for attackers:

Once we compromise a system and exploit a vulnerability to execute commands on the compromised hosts remotely, we usually need a method of communicating with the system. To enumerate the system or take further control over it or within its network, we need a reliable connection that gives us direct access to the system’s shell, i.e., Bash or PowerShell, so we can thoroughly investigate the remote system for our next move. One method of accessing a compromised host for control and remote code execution is through shells.

Our initial access to a remote server is usually in the context of a low-privileged user, which would not give us complete access over the box. For example, some commands (like tcpdump) cannot be run via sudo and can only be run by the root user. To gain full access, we will need to find an internal/local vulnerability that would escalate our privileges to the root user on Linux or the administrator/SYSTEM user on Windows.

About DNS DNS is a system for resolving computer names into IP addresses, and it does not have a central database. The information is distributed over many thousands of name…