Search Evasion Techniques
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Retrieve HDD Information Sandbox Evasion
Malware can figure out if it's in a virtual environment by checking hard drive info. It looks for specific details like serial and model numbers. This is easier to spot in VirtualBox because it shows clues that it's running in a virtual space.
Malware uses this trick to avoid getting caught. It does this by using a special command …
BlockInput Others
As per Microsoft's documentation, BlockInput function "prevents keyboard and mouse input events from reaching applications," effectively restricting user interaction with the system.
Malware occasionally employs this tactic to hinder analysis by debuggers or other analysis tools throughout the process' runtime. To deactivate the block, the program must make a live call to BlockInput with the parameter 0. Windows automatically …
Cronos-Crypter Packers
Cronos-Crypter is an open-source crypter publicly available on GitHub. The crypter applies AES encryption or XOR obfuscation to a selected payload before storing it as a .NET resource of a final generated .NET executable payload. Cronos-Crypter contains multiple capabilties for persistence and defense evasion. An operator may select persistence via a Windows Registry autorun key or a Scheduled Task. An …
Removing Commands from SELinux Audit Logs Anti-Forensic
SELinux audit logs record all executed commands and policy enforcement actions, including commands like /bin/web, setenforce, mount, and /bin/rm. Using sed -i, attackers delete specific entries from these logs that could reveal the commands they executed. This manipulation ensures that traces of their activity, such as disabling security policies or deleting evidence, are erased from …