Posters have appeared on the side of some roads, slamming former Opposition leader Simon Busuttil with the slogan 'Crooks everywhere you look', a throwback to the last post by Daphne Caruana Galizia.
The posters also show Ms Caruana Galizia, who was killed in a car bomb last October, former Pilatus Bank employee Maria Efimova, and the MEP driving the campaign in the European Parliament against money-laundering, David Casa.
Criticism against the four has mounted after a magisterial inquiry said there was no connection between secret Panama company Egrant and the prime minister's family.
The messages are reminiscent of the regular campaigns that a number of activists have embarked on to mark the murder of Ms Caruana Galizia as well as to deride Malta's rule of law.