(YARA) Detect GetForegroundWindow Usage

Download Raw

import "pe"
 
rule UNPROTECT_Possible_GetForegroundWindow_Evasion
{
    meta:
        description = "Attempts to detect possible usage of sandbox evasion techniques using GetForegroundWindow API, based on module imports."
        author = "Kyle Cucci"
        date = "2020-09-30"
 
    condition:
        uint16(0) == 0x5A4D and
        pe.imports("user32.dll", "GetForegroundWindow") and
        pe.imports("kernel32.dll", "Sleep")
}

Associated Techniques

Matching Samples 10 most recent