Malware variability explained: Changing behavior for stealth and persistence

Cybercriminal gangs from Eastern Europe have always followed a rule: Don’t steal from Russians or their former Soviet allies. Groups like REvil or DarkSide put kill switches inside their malicious code, checking if the language on the machine it lands on is Russian, Ukrainian, Georgian, Armenian, or Romanian. If it is, the malware simply fails to install. To read this article in full, please click here(Insider Story)
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