Sneed-Reactivity/yara-mikesxrs/h3x2b/obfuscation.yara

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rule obfuscation_singlebyte_mov : feature obfuscation
{
meta:
author = "Andreas Schuster"
description = "Detects strings obfuscated by single-byte mov ex: mov [ebp+String+1], A"
//Check also:
//https://insights.sei.cmu.edu/sei_blog/2012/11/writing-effective-yara-signatures-to-identify-malware.html
strings:
$singleb_mov = { c6 45 [2] c6 45 [2] c6 45 [2] c6 45}
condition:
//Contains all of the strings
all of them
}