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Checking Specific Folder Name
Specific directories, such as "C:\Cuckoo", can serve as indicators of a sandboxed or virtualized environment when present on a guest system. Consequently, a savvy piece of malware could potentially use the detection of this particular directory as a means of evading analysis. This would allow the malicious software to alter its behavior or even halt its execution altogether when it …
Read moreChecking Pipe
Cuckoo is an open-source automated malware analysis system that performs dynamic analysis by running suspicious files in isolated virtual environments.
To facilitate communication between the host system (analysis environment) and the guest system (execution environment), Cuckoo uses a named pipe: \.\pipe\cuckoo
Detection Technique
Malware running inside the guest can check for the existence of this named pipe. …
Read moreDetecting Hooked Function
To avoid some actions on the system by the malware like deleted a file. Cuckoo will hook some function and performs another action instead of the original one. For example the function DeleteFileW could be hooked to avoid file deletion.
Read moreDetecting Hostname, Username
Most sandbox are using name like Sandbox, Cuckoo, Maltest, Malware, malsand, ClonePC.... All this hostname can provide the information to the malware. The username can also be checked by malware.
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