What is Malicious API's Functions
Malicious Windows API functions are system calls or interfaces within the Windows operating system that malware uses to perform harmful actions .
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Malicious Windows API functions are system calls or interfaces within the Windows operating system that malware uses to perform harmful actions .
Last updated
Malicious API functions are used by malware to execute harmful actions while evading detection and bypassing security mechanisms. Hereโs why they are critical in the context of malware:
Code Injection: Functions like CreateRemoteThread and WriteProcessMemory allow malware to inject and execute code within the address space of other processes, facilitating stealthy operations.
Data Theft: APIs such as ReadProcessMemory enable malware to access and extract sensitive data from other processes, potentially leading to data breaches.
Persistence: Functions like RegSetValueEx are used to modify the Windows Registry, allowing malware to establish persistence by ensuring it starts automatically on system boot.
System Manipulation: Malicious use of APIs like CreateFile and WriteFile allows malware to create, modify, or delete files, often to store malicious payloads or disrupt system functionality.
Privilege Escalation: APIs such as NtQuerySystemInformation provide detailed system information that can help malware identify and exploit vulnerabilities to escalate privileges.
Avoid Detection: By using APIs to hide their presence or manipulate system behavior, malware can avoid detection by traditional security measures.
Network Communication: Functions like InternetOpen and InternetOpenUrl facilitate communication with command-and-control servers, allowing malware to exfiltrate data or receive instructions.
User Interception: APIs such as SetWindowsHookEx enable malware to intercept user input or system events, which can be used to capture keystrokes or manipulate user actions.
