Process Injection:  Перехват выполнения потока

Pikabot can create a suspended instance of a legitimate process (e.g., ctfmon.exe), allocate memory within the suspended process corresponding to Pikabot's core module, then redirect execution flow via `SetContextThread` API so that when the thread resumes the Pikabot core module is executed.(Citation: Elastic Pikabot 2024)

Gazer performs thread execution hijacking to inject its orchestrator into a running thread from a remote process.(Citation: ESET Gazer Aug 2017)(Citation: Securelist WhiteBear Aug 2017)

Trojan.Karagany can inject a suspended thread of its own process into a new process and initiate via the ResumeThread API.(Citation: Secureworks Karagany July 2019)

Waterbear can use thread injection to inject shellcode into the process of security software.(Citation: Trend Micro Waterbear December 2019)

Behavior Prevention on Endpoint refers to the use of technologies and strategies to detect and block potentially malicious activities by analyzing the behavior of processes, files, API calls, and other endpoint events. Rather than relying solely on known signatures, this approach leverages heuristics, machine learning, and real-time monitoring to identify anomalous patterns indicative of an attack. This mitigation can be implemented through the following measures: Suspicious Process Behavior: - Implementation: Use Endpoint Detection and Response (EDR) tools to monitor and block processes exhibiting unusual behavior, such as privilege escalation attempts. - Use Case: An attacker uses a known vulnerability to spawn a privileged process from a user-level application. The endpoint tool detects the abnormal parent-child process relationship and blocks the action. Unauthorized File Access: - Implementation: Leverage Data Loss Prevention (DLP) or endpoint tools to block processes attempting to access sensitive files without proper authorization. - Use Case: A process tries to read or modify a sensitive file located in a restricted directory, such as /etc/shadow on Linux or the SAM registry hive on Windows. The endpoint tool identifies this anomalous behavior and prevents it. Abnormal API Calls: - Implementation: Implement runtime analysis tools to monitor API calls and block those associated with malicious activities. - Use Case: A process dynamically injects itself into another process to hijack its execution. The endpoint detects the abnormal use of APIs like `OpenProcess` and `WriteProcessMemory` and terminates the offending process. Exploit Prevention: - Implementation: Use behavioral exploit prevention tools to detect and block exploits attempting to gain unauthorized access. - Use Case: A buffer overflow exploit is launched against a vulnerable application. The endpoint detects the anomalous memory write operation and halts the process.