Malware With Advanced Behavior - O-LavenderAshburn/Knowledgebase_MalwareAnalysis GitHub Wiki

As cybersecurity measures evolve, so too do the techniques employed by malware authors to evade detection and maintain persistence within compromised systems. While traditional malware often relies on static signatures and predictable execution patterns, modern threats integrate sophisticated evasion tactics, dynamic code modifications, and adaptive behaviors. These advancements not only obscure their presence but also complicate the efforts of analysts and security professionals striving to detect, dissect, and neutralize them.

Malware with advanced behavior often incorporates sophisticated techniques to evade detection, persist on systems, and maximize its impact. Here are some key characteristics and techniques used in advanced malware.

Evasion Techniques

Obfuscation

• Code Obfuscation - Malware authors use packers and encryption evade signature-based detection.
• Polymorphism - Modifies parts of itself.
• Metamorphic code - Rewrites itself each time it spreads.

Environment

• Techniques to detect Virtual Environments.
• Delayed execution - To prevent being observed by automated sandboxes.

Advanced Execution

• Fileless execution.

  Uses legitimate processes and tool on the system to execute the mawlare attack.

  Can use memory only techniques.

  Read More -> What is fileless Malware - CrowdStrike

• DLL Injection - Injects malicious DLLs into a target processes.

• Thread Hijacking - Executing malicious code on in the address space of other processes.

  Read More -> Process Injection: Thread Execution Hijacking MITRE ATT&CK

• Rootkits - Malware designed to gain privileged access (root or administrator) while actively hiding its presence from the system.

• Shellcode Injection - Injection and execution of arbitrary assembly-level code inside a running process.