On 16 March 2024, Sentinel Labs identified a suspicious Linux binary uploaded from Ukraine. Initial analysis showed surface similarities with the infamous AcidRain wiper used to disable KA-SAT modems across Europe at the start of the Russian invasion of Ukraine (commonly identified by the ‘Viasat hack’ misnomer). Since our initial finding, no similar samples or variants have been detected or publicly reported until now. This new sample is a confirmed variant called ‘AcidPour’, a wiper with si